TDEE Calculator 2026 - Daily Calories for Cut, Maintain & Gain | CalcFFMI

TDEE Calculator

Calculate your Total Daily Energy Expenditure for accurate calorie goals

Calculate Your TDEE

Imperial (lbs/ft)
Metric (kg/cm)
Your Maintenance Calories (TDEE)
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Calories to maintain current weight

Weight Loss
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-500 cal deficit
~1 lb/week loss
Muscle Gain
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+300 cal surplus
~0.5 lb/week gain

Understanding TDEE

**TDEE (Total Daily Energy Expenditure)** represents the total number of calories your body burns in 24 hours accounting for all activities including basal metabolism, exercise, non-exercise movement, and food digestion. Unlike BMR (Basal Metabolic Rate) which only measures resting metabolism, TDEE provides complete picture of your daily energy needs making it the essential metric for setting accurate calorie targets whether you're cutting fat, building muscle, or maintaining current physique.

Understanding your TDEE is fundamental to achieving any body composition goal. Eating below TDEE creates caloric deficit causing weight loss. Eating at TDEE maintains current weight. Eating above TDEE creates caloric surplus enabling muscle gain. Without knowing your TDEE, you're essentially guessing at appropriate calorie intake—sometimes accidentally eating too much gaining unwanted fat, other times eating too little limiting muscle growth or causing excessive muscle loss during cuts.

✅ TDEE Components

BMR (Basal Metabolic Rate): 60-75% of TDEE - calories burned at complete rest maintaining vital functions (breathing, circulation, cell production)

NEAT (Non-Exercise Activity Thermogenesis): 15-30% of TDEE - calories from daily activities (walking, fidgeting, occupational movement)

EAT (Exercise Activity Thermogenesis): 5-10% of TDEE - calories burned during structured exercise (gym sessions, sports, cardio)

TEF (Thermic Effect of Food): 10% of TDEE - calories burned digesting and processing food (protein burns most, ~25-30% of calories consumed)

How TDEE is Calculated

Step 1: Calculate BMR

BMR calculation uses the **Mifflin-St Jeor equation**, the most accurate formula for general population:

Men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age) + 5

Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age) - 161

Example: 25-year-old male, 180 lbs (81.6 kg), 5'10" (178 cm)
BMR = (10 × 81.6) + (6.25 × 178) - (5 × 25) + 5
BMR = 816 + 1,112.5 - 125 + 5 = 1,808.5 calories

Step 2: Apply Activity Multiplier

Multiply your BMR by activity factor matching your typical weekly exercise and daily movement:

Activity Level Multiplier Description
Sedentary 1.2 Desk job, little or no exercise
Lightly Active 1.375 Light exercise 1-3 days/week
Moderately Active 1.55 Moderate exercise 3-5 days/week
Very Active 1.725 Hard exercise 6-7 days/week
Extremely Active 1.9 Very hard exercise + physical job

Example: Same person trains 4 days weekly (Moderately Active)
TDEE = BMR × 1.55
TDEE = 1,808.5 × 1.55 = 2,803 calories

Using TDEE for Different Goals

For Weight Loss (Cutting)

Create **caloric deficit** of 300-700 calories below TDEE depending on aggressiveness:

  • Conservative cut (-300-400 cal): ~0.5-0.75 lbs loss weekly, maximum muscle retention, sustainable long-term
  • Moderate cut (-500 cal): ~1 lb loss weekly, good muscle retention, most popular approach
  • Aggressive cut (-700 cal): ~1.5 lbs loss weekly, some muscle loss risk, use short-term only

Example: TDEE 2,800 calories → moderate cut at 2,300 calories (500 deficit) → expect ~1 lb weekly fat loss

Minimum calories: Never eat below BMR or 1,500 calories for men / 1,200 for women regardless of TDEE. Extreme deficits cause metabolic adaptation, muscle loss, and hormonal disruption.

For Muscle Gain (Bulking)

Create **caloric surplus** of 200-500 calories above TDEE enabling muscle growth without excessive fat gain:

  • Lean bulk (+200-300 cal): ~0.25-0.5 lbs gain weekly, minimal fat gain, best for most natural lifters
  • Standard bulk (+400-500 cal): ~0.5-1 lb gain weekly, some fat gain acceptable, faster muscle building
  • Aggressive bulk (+700+ cal): 1+ lb gain weekly, significant fat gain, only for underweight beginners

Example: TDEE 2,800 calories → lean bulk at 3,100 calories (300 surplus) → expect ~0.5 lb weekly gain (mostly muscle with proper training)

Natural lifters should aim for 0.5-1 lb monthly muscle gain maximum. Faster weight gain than this is primarily fat—your body can only build muscle so fast without pharmaceutical assistance.

For Maintenance (Recomposition)

Eat **at TDEE** maintaining current weight while training hard with adequate protein (0.8-1g per lb). This enables simultaneous slow fat loss and muscle gain through body recomposition, particularly effective for:

  • Beginners (first 6-12 months training)
  • Detrained individuals returning to training after break
  • Those with high body fat (over 20% men, 30% women)

Advanced natural lifters struggle with recomp—better results from deliberate bulk/cut cycles rather than staying at maintenance indefinitely.

⚠️ TDEE is an Estimate

TDEE calculations provide starting points, not exact values. Individual metabolism varies 10-20% from formulas due to genetics, muscle mass, NEAT differences, and metabolic adaptation. Use calculated TDEE as baseline, then adjust based on real-world results:

Track weight for 2-3 weeks: If losing/gaining as expected, TDEE accurate. If not changing despite deficit/surplus, adjust calories ±200 and reassess.

Example: Calculator says 2,800 TDEE. You eat 2,300 (predicted 500 deficit) but lose nothing after 3 weeks → actual TDEE closer to 2,500 → reduce to 2,000 calories.

Trust scale trends over calculators—your body provides truth, formulas provide educated guesses.

Factors Affecting TDEE

Age

Metabolism declines approximately 1-2% per decade after age 30 due to muscle loss, reduced activity, and hormonal changes. A 50-year-old burns 200-400 fewer daily calories than identical 25-year-old, making weight management progressively harder with age without compensating through increased activity or reduced intake.

Gender

Men typically have 5-10% higher metabolic rates than women due to greater muscle mass and testosterone levels. Average male TDEE: 2,200-2,800 calories. Average female TDEE: 1,800-2,200 calories. However, individual variation (muscle mass, activity) matters more than gender averages.

Body Composition

Muscle tissue burns 6 calories per pound daily at rest versus 2 calories per pound for fat tissue. Someone with 160 lbs lean mass burns 200-300 more daily calories than someone with 130 lbs lean mass at same total bodyweight. This is why maintaining muscle during cuts is crucial—losing muscle tanks TDEE making continued fat loss progressively harder.

Activity Level

Most significant variable affecting TDEE. Sedentary person burns 1.2× BMR while extremely active person burns 1.9× BMR—difference of 700-1,000+ daily calories. Increasing NEAT (taking stairs, walking more, fidgeting) can add 200-400 daily calorie burn without structured exercise.

Diet History

**Metabolic adaptation** occurs during prolonged dieting—body reduces NEAT, lowers body temperature slightly, and becomes more metabolically efficient. Someone dieting 6+ months may see TDEE drop 10-15% beyond what weight loss alone predicts. This is why diet breaks (eating at maintenance 1-2 weeks every 8-12 weeks) help restore metabolic rate during extended cuts.

Common TDEE Mistakes

Overestimating Activity Level

Most people select activity multiplier one level too high. Training 4 days weekly doesn't make you "Very Active" if you sit at desk remaining 23 hours daily. Be conservative choosing activity level—better underestimating slightly and adjusting up than overestimating and wondering why you're not losing fat despite "deficit."

Not Tracking Weight Trends

Calculated TDEE means nothing without validating against real-world results. Weigh yourself same time daily (morning after bathroom, before eating), calculate weekly averages, and track trends over 2-3 weeks. If weight changes don't match calorie math (500 daily deficit should = ~1 lb weekly loss), your actual TDEE differs from calculated—adjust accordingly.

Forgetting About Metabolism Changes

TDEE isn't static—it changes as you lose/gain weight and as your body adapts to dieting. Recalculate TDEE every 10-15 lbs weight change or when progress stalls despite adherence. Your TDEE at 200 lbs differs significantly from TDEE at 180 lbs requiring calorie adjustments maintaining appropriate deficit/surplus.

Ignoring NEAT Reduction

During caloric deficits, subconscious activity decreases—less fidgeting, choosing elevators over stairs, moving less throughout day. This can reduce TDEE by 200-400 calories beyond expected from weight loss alone. Combat this by deliberately increasing daily steps (target 8,000-10,000+ daily) and staying generally active outside gym preventing excessive NEAT decline.

The Bottom Line

TDEE (Total Daily Energy Expenditure) represents your total daily calorie burn providing foundation for all body composition goals. By calculating TDEE using the Mifflin-St Jeor equation and applying appropriate activity multipliers, you establish baseline calorie target then adjust based on goals: subtract 300-700 calories for fat loss, add 200-500 calories for muscle gain, or eat at TDEE for maintenance and body recomposition.

However, calculated TDEE provides starting point, not absolute truth. Individual metabolism varies 10-20% from formulas requiring real-world validation through consistent weight tracking over 2-3 weeks. If results don't match predictions, adjust calories ±200 and reassess. Your body's response provides more accurate TDEE estimate than any formula—trust scale trends and adjust accordingly rather than rigidly adhering to calculator outputs.

Remember that TDEE changes as you lose or gain weight, as you age, and as your body adapts to dieting. Recalculate every 10-15 lbs weight change and reassess when progress stalls. Success requires pairing accurate TDEE estimate with consistent tracking, appropriate protein intake (0.8-1g per lb), progressive resistance training, and patience trusting the process over weeks and months rather than expecting dramatic daily changes.

How to Use Your TDEE Result in Real Life

A TDEE estimate is most useful when you treat it as a starting point rather than a permanent calorie prescription. Your calculated Total Daily Energy Expenditure represents the approximate amount of energy you may burn across a normal day after accounting for resting metabolism and activity. The practical next step is to choose a calorie target that matches your goal, follow it consistently for at least a couple of weeks, and compare the prediction with your actual body-weight trend.

If your goal is fat loss, a moderate calorie deficit is usually easier to sustain than an aggressive cut. If your goal is muscle gain, a controlled surplus can support training performance while limiting unnecessary fat gain. If your goal is maintenance or body recomposition, staying close to your estimated TDEE while improving training quality and protein intake can be a sensible starting point. Use the Protein Calculator to set protein after calories, and the Body Fat Calculator or FFMI Calculator to track body-composition changes over time.

Best practice: weigh yourself under similar conditions several times per week and compare weekly averages. One high or low scale reading can reflect water, sodium, glycogen, food volume, or digestion rather than a true change in body fat.

Adjusting Calories After Two to Four Weeks

A calculator cannot directly measure your real-world metabolism, so the best calorie target is the one that is validated by your trend. If your average weight is stable for two to four weeks, your current intake is probably close to maintenance even if it differs from the original calculator estimate. If weight is falling faster than intended during a cut, increase calories slightly. If weight is not moving at all during a planned gaining phase, add a small amount of food and reassess.

Small adjustments are usually easier to interpret than dramatic changes. Changing calories by roughly 100 to 250 per day gives you a clean experiment without completely changing your diet. Keep training, step count, and meal tracking reasonably consistent during the observation period. For a structured gaining phase, pair this page with the Bulking Diet Guide; for fat loss, use the Cutting Diet Guide.

TDEE, Training Volume, and Recovery

Your energy needs are influenced by more than formal exercise. Hard training can increase expenditure directly, but it can also change appetite, spontaneous movement, and recovery demands. A person running a high-volume resistance program may need more calories than another person with the same height and weight who trains only a few times per week. This is one reason activity multipliers should be viewed as practical estimates rather than exact physiological constants.

When calories are too low for your workload, common signs can include declining gym performance, poor recovery, persistent hunger, reduced daily movement, and difficulty sustaining training volume. The Training Frequency Guide, Progressive Overload Guide, and One Rep Max Calculator can help you monitor whether your performance is progressing while you adjust nutrition.

Common Questions About Daily Calorie Needs

Should exercise calories be added back?

If you selected an activity level that already includes your normal training, adding every estimated workout calorie back on top of your TDEE can double-count activity. A simpler approach is to use the calculator target consistently and adjust it from body-weight trends. If your activity changes dramatically—such as adding endurance training, changing jobs, or increasing daily steps—recalculate and monitor again.

Why can two people with the same body weight have different TDEE values?

Height, age, sex, lean mass, daily movement, job demands, training, sleep, and individual variation can all affect expenditure. Body weight alone is not enough to predict daily energy use precisely. If you want more context around lean mass, see the Lean Body Mass Calculator and Body Composition Guide.

How often should TDEE be recalculated?

Recalculate after a meaningful change in body weight, activity, or training schedule. During a long cut or bulk, checking every 4 to 8 weeks is usually more useful than recalculating every few days. Your real-world intake and weight trend remain the most important feedback.

Related CalcFFMI Tools

Daily Protein Calculator Body Fat Calculator FFMI Calculator Body Recomposition Calculator Bulking Diet Guide Cutting Diet Guide

Frequently Asked Questions

How accurate is the TDEE calculator? +
TDEE calculators provide reasonable estimates accurate within 10-20% for most people, but individual variation exists. The Mifflin-St Jeor equation used here is most accurate formula for general population, but your actual TDEE may differ due to genetics, muscle mass, NEAT (non-exercise activity), and metabolic adaptation from diet history. Use calculated TDEE as starting point, then validate through real-world results. Weigh yourself daily for 2-3 weeks calculating weekly averages. If losing/gaining weight as predicted based on deficit/surplus, TDEE accurate. If not changing despite eating below calculated TDEE, your actual TDEE is lower—reduce calories 200 and reassess. Trust your body's response over calculator outputs, adjusting based on objective scale trends rather than rigidly following formula predictions that may not account for your individual metabolism.
What's the difference between BMR and TDEE? +
BMR (Basal Metabolic Rate) represents calories burned at complete rest maintaining essential bodily functions like breathing, circulation, and cell production. TDEE (Total Daily Energy Expenditure) includes BMR plus all additional calorie burn from daily activities, exercise, and food digestion. Think of BMR as baseline metabolism if you stayed in bed all day, while TDEE is total daily burn accounting for everything you actually do. For most people, BMR comprises 60-75% of TDEE, with remaining 25-40% from movement and food processing. You calculate TDEE by multiplying BMR by activity multiplier (1.2-1.9) reflecting lifestyle. Never eat below BMR long-term as this provides insufficient energy for basic bodily functions potentially causing metabolic damage, hormonal disruption, and muscle loss. Set calorie targets based on TDEE, not BMR—TDEE provides accurate picture of total energy needs enabling appropriate deficit/surplus calculations.
Which activity level should I choose? +
Be conservative selecting activity level—most people overestimate by one level leading to maintenance/surplus when trying to cut. Sedentary (1.2): desk job with little exercise. Lightly Active (1.375): light exercise 1-3 days/week or active job. Moderately Active (1.55): moderate exercise 3-5 days/week with mostly sedentary job. Very Active (1.725): intense exercise 6-7 days/week or moderately active job plus training. Extremely Active (1.9): very intense training twice daily plus physically demanding job—extremely rare. Training 4 days weekly doesn't make you "Very Active" if sitting at desk remaining 23 hours. Most lifters with office jobs training 3-5× weekly fit "Lightly Active" or "Moderately Active" categories. When uncertain, choose lower multiplier—easier adding calories if losing weight too fast than reducing them when not losing despite predicted deficit. Monitor results and adjust based on actual weight trends rather than aspirational activity descriptions.
Should I eat back calories burned during exercise? +
No, your TDEE calculation already accounts for exercise through activity multiplier selection. Adding extra calories for workouts creates double-counting leading to smaller deficit or surplus than intended. The activity multipliers (1.2-1.9) incorporate your typical exercise schedule into total daily burn. If you selected "Moderately Active" accounting for 4 weekly training sessions, those workout calories are already included—don't add more. Only adjust if activity dramatically changes from typical week (adding extra training days, increasing cardio significantly). Exception: if calculating TDEE using sedentary multiplier then manually adding exercise calories, this approach works but requires accurate tracking of workout burns (difficult—most devices overestimate by 20-30%). Simpler approach: choose activity multiplier matching typical weekly routine, stick with those calories, and adjust based on scale trends over 2-3 weeks. Consistency beats precision—pick one method and evaluate results rather than constantly adjusting for individual workouts.
How often should I recalculate my TDEE? +
Recalculate TDEE every 10-15 lbs weight change or when progress stalls for 3+ weeks despite adherence. Your TDEE decreases as you lose weight (less body mass requires fewer calories maintaining) and increases as you gain weight. A 200 lb person burns significantly more than 180 lb person necessitating calorie adjustments maintaining appropriate deficit/surplus. Additionally, recalculate if activity level changes substantially (switching from 3-day to 6-day training split, getting more/less active job). During extended diets (12+ weeks), metabolic adaptation may occur reducing TDEE beyond predicted from weight loss—if fat loss stalls 3+ weeks despite adherence, either take diet break (eat maintenance 1-2 weeks) or reduce calories 100-200. However, don't obsessively recalculate weekly—minor daily weight fluctuations don't reflect true TDEE changes. Focus on 2-3 week weight trends rather than single weigh-ins. Most people recalculate every 4-8 weeks during active weight loss/gain phases, adjusting based on whether actual results match predicted outcomes.
Why is my TDEE different from other calculators? +
Different calculators use different BMR formulas (Mifflin-St Jeor, Harris-Benedict, Katch-McArdle) and may apply activity multipliers slightly differently. Mifflin-St Jeor (used here) tends to be most accurate for general population. Harris-Benedict often overestimates slightly. Katch-McArdle requires body fat percentage and better for lean individuals but most people don't know accurate body fat. Differences between reputable calculators typically 100-200 calories—not drastically different. However, some calculators use outdated formulas, incorrect multipliers, or add extra adjustments inflating/deflating results 300-500 calories. If seeing 500+ calorie differences between calculators, one is using questionable methodology. Solution: pick one calculator (this one uses gold-standard Mifflin-St Jeor), use that TDEE as baseline, track results 2-3 weeks, then adjust based on actual weight trends. Consistency matters more than which specific calculator—choose one, commit to it, and let real-world results guide adjustments rather than calculator-shopping seeking highest TDEE estimate.
Can I lose fat and gain muscle at the same time? +
Yes, but primarily for beginners, detrained individuals, or those with high body fat—not typical for experienced lean lifters. Body recomposition (simultaneous fat loss and muscle gain) works best eating at TDEE maintenance calories with high protein (1g per lb) and progressive resistance training. Who can recomp: beginners (first 6-12 months training regardless of body fat), detrained individuals returning after 6+ month break (muscle memory advantage), overweight individuals with significant fat to lose (over 20% men, 30% women). Who struggles with recomp: lean advanced lifters (under 15% body fat, 2-3+ years consistent training). For this group, dedicated bulk/cut cycles produce better results—intentional surplus building muscle followed by intentional deficit revealing that muscle. Recomp is slow—expect 1-2 lbs fat loss monthly while gaining 0.5-1 lb muscle monthly if conditions favorable. Advanced lifters attempting recomp often spin wheels making minimal progress either direction versus productive bulk/cut cycles.
Does metabolism really slow down when dieting? +
Yes, metabolic adaptation occurs during prolonged caloric deficits through multiple mechanisms. First, weighing less inherently reduces TDEE—smaller bodies require fewer calories. Second, body reduces NEAT (non-exercise activity) subconsciously—less fidgeting, choosing convenient options over active ones, generally moving less throughout day (can reduce TDEE 200-400 calories). Third, body becomes more metabolically efficient slightly lowering body temperature and optimizing cellular processes. Combined, these adaptations can reduce TDEE 10-20% beyond predicted from weight loss alone. Example: calculator predicts TDEE 2,400 at 180 lbs, but after 12-week diet actual TDEE closer to 2,100-2,200. This is normal survival mechanism, not metabolic damage. Solutions: take diet breaks every 8-12 weeks (eat maintenance 1-2 weeks), increase daily steps maintaining NEAT, ensure adequate protein (1g per lb) preserving muscle mass, avoid excessive deficits (stick to 500-700 max). Post-diet reverse dieting—slowly increasing calories 100-200 every 2 weeks—helps restore metabolism to predicted levels.