TDEE Calculator: Calculate Your Total Daily Energy Expenditure
Use our TDEE Calculator to find out how many calories you burn each day based on your activity level. This helps you determine your calorie needs for weight loss, maintenance, or muscle gain.
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What Is TDEE?
Total Daily Energy Expenditure (TDEE) is the total number of calories you burn in a day — everything from breathing and circulation to walking, working out, and digesting food. It's the number that tells you how much you can eat to maintain, lose, or gain weight.
Every weight-related goal starts here:
- To maintain: eat at TDEE
- To lose fat: eat below TDEE
- To gain muscle: eat above TDEE
- For a diet break: return to TDEE for 1–2 weeks
For the components that make up TDEE, see the BMR Calculator. For a plan without activity multipliers, see the Daily Calorie Calculator.
The Four Components of TDEE
| Component | % of TDEE | What It Covers | Can You Change It? |
|---|---|---|---|
| BMR (Basal Metabolic Rate) | 60–70% | Breathing, circulation, cell repair, brain activity at rest | Modestly — by building muscle |
| TEF (Thermic Effect of Food) | ~10% | Digestion and absorption of food | Slightly — by eating more protein |
| NEAT (Non-Exercise Activity Thermogenesis) | 15–30% | Walking, fidgeting, standing, chores | Yes, substantially — daily steps are the biggest lever |
| EAT (Exercise Activity Thermogenesis) | 0–10% (general) / 10–25% (athletes) | Intentional exercise | Yes, but with recovery costs |
Key insight: NEAT is the largest personal variable. Two people with the same BMR can differ by 300–800 kcal/day purely from how much they move outside the gym. This is why "we have the same stats but different TDEEs" is real.
How the Calculator Estimates Your TDEE
We use the standard two-step method.
Step 1: BMR (Mifflin-St Jeor Equation)
- Men: BMR = (10 × kg) + (6.25 × cm) − (5 × age) + 5
- Women: BMR = (10 × kg) + (6.25 × cm) − (5 × age) − 161
Endorsed by the Academy of Nutrition and Dietetics as the most accurate general-population equation.
Step 2: TDEE (BMR × Activity Factor)
| Activity Level | Description | Multiplier |
|---|---|---|
| Sedentary | Desk job, little or no exercise | 1.2 |
| Lightly active | Light exercise 1–3 days/week | 1.375 |
| Moderately active | Moderate exercise 3–5 days/week | 1.55 |
| Very active | Hard exercise 6–7 days/week | 1.725 |
| Extremely active | Physical job + training, or athlete | 1.9 |
Example: A 35-year-old male, 80 kg, 180 cm, moderately active:
- BMR = 800 + 1,125 − 175 + 5 = 1,755 kcal
- TDEE = 1,755 × 1.55 = ~2,720 kcal/day
Alternative: Katch-McArdle (If You Know Body Fat %)
For lean, muscular, or obese individuals, the Katch-McArdle formula is more accurate because it uses lean mass instead of total weight:
BMR = 370 + (21.6 × lean mass in kg)
Then multiply by the same activity factor. See the Body Fat Percentage Calculator to estimate your lean mass.
TDEE Quick Reference by Body Weight
Approximate daily TDEE for adults. Actual values vary by height, age, and NEAT — use the calculator above for your specific number.
| Body Weight | Sedentary | Lightly Active | Moderately Active | Very Active |
|---|---|---|---|---|
| 120 lb (54 kg) | 1,500–1,600 | 1,700–1,850 | 1,900–2,100 | 2,100–2,400 |
| 150 lb (68 kg) | 1,700–1,850 | 1,950–2,100 | 2,200–2,400 | 2,450–2,700 |
| 180 lb (82 kg) | 1,950–2,100 | 2,200–2,400 | 2,500–2,700 | 2,750–3,100 |
| 210 lb (95 kg) | 2,150–2,350 | 2,450–2,650 | 2,750–3,000 | 3,050–3,400 |
| 250 lb (113 kg) | 2,350–2,600 | 2,700–2,900 | 3,000–3,250 | 3,300–3,700 |
Remember: these assume an average height (5'9" / 175 cm) and age (35). Shorter, older, or lower-NEAT individuals will sit toward the bottom of each range.
Adjusting TDEE for Your Goal
| Goal | Target Calories | Typical Weekly Change | Notes |
|---|---|---|---|
| Maintain | TDEE | Stable | Adjust if weight drifts more than 1–2% over 2 weeks |
| Slow fat loss | TDEE − 250 | 0.25–0.5% of body weight | Best for lean dieters, athletes, or people who want minimal muscle loss |
| Moderate fat loss | TDEE − 500 | 0.5–1% of body weight | The standard approach; works for most people |
| Aggressive fat loss | TDEE − 750 to −1,000 | 1%+ of body weight | Only for BMI 30+, medically supervised, or short-term |
| Lean bulk | TDEE + 250 | 0.25% gain | Best for advanced lifters; minimal fat gain |
| Standard bulk | TDEE + 500 | 0.5% gain | Standard muscle-building surplus |
Scale the deficit to your body size. A 500 kcal deficit is aggressive for a 120 lb person but mild for a 240 lb person. The evidence-based range is 0.5–1% of body weight per week. For a detailed plan, see our Calorie Deficit Calculator and Weight Loss Calculator.
Finding Your True TDEE (2-Week Test)
Calculators give an estimate. To find your real number, use a 2-week test:
- Eat at your estimated TDEE for 14 days.
- Weigh yourself daily: first thing in the morning, after the bathroom, before eating.
- Calculate weekly averages (daily readings swing 1–3 lb from water and food).
- Compare week 1 vs. week 2 averages:
- Weight changed less than 0.5% → you're at maintenance; that's your TDEE.
- Weight gained → reduce by 100–200 kcal/day and re-test.
- Weight lost → increase by 100–200 kcal/day and re-test.
- Recalculate every 5–10 lb of body weight change.
This test typically lands within ±5% of your true TDEE.
Why TDEE Isn't a Single Fixed Number
Your TDEE shifts from day to day. Sources of variation:
- NEAT drift: you naturally move less on high-training days and more on rest days.
- Hormonal cycle: women's TDEE rises 100–300 kcal in the luteal phase.
- Sleep: poor sleep can lower TDEE by 5–10% and raise appetite.
- Temperature: cold exposure raises TDEE; heat lowers it slightly.
- Weight change: a 10 lb drop lowers TDEE by ~100–150 kcal.
- Training load: a hard session may reduce subsequent NEAT.
Because of this, aim for weekly averages, not daily precision. Eating 2,200 kcal one day and 2,800 the next averages to 2,500 — same as eating 2,500 both days.
Muscle vs. Fat: What Really Changes Your TDEE
The classic claim is "muscle burns 6 kcal/lb/day, fat burns 2 kcal/lb/day." Modern research suggests the difference is smaller:
| Tissue | Traditional Estimate | Updated Estimate |
|---|---|---|
| Skeletal muscle (per lb) | ~6 kcal/day | ~3–5 kcal/day |
| Fat tissue (per lb) | ~2 kcal/day | ~1–2 kcal/day |
| Difference (per lb) | ~4 kcal/day | ~1–3 kcal/day |
Practical takeaway: adding 10 lb of muscle might raise your TDEE by 10–30 kcal/day — helpful but not the "metabolic furnace" often promised. The bigger effects of resistance training come from:
- Increased NEAT (you move more when stronger).
- Better glucose disposal and insulin sensitivity.
- More calories burned during the training itself.
- Muscle preservation during a deficit, which keeps TDEE higher than it would be otherwise.
Diet Breaks: TDEE's Most Useful Application
If you've been in a calorie deficit for 8+ weeks, a diet break — 1–2 weeks eating at TDEE — restores hormones, training performance, and adherence.
- Partial reversal of metabolic adaptation (typically +100–200 kcal/day)
- Restored leptin and thyroid hormones
- Improved mood, sleep, and gym performance
- Reduced diet fatigue and binge risk
- No meaningful fat regain if calories stay at TDEE
See the Maintenance Calorie Calculator for the full diet break framework.
What TDEE Doesn't Account For
- Individual BMR variance: even at the same weight and height, BMR can vary ±5–10% between people.
- Hormonal conditions: hypothyroidism lowers TDEE; hyperthyroidism raises it. Standard formulas don't adjust for this.
- Medication effects: beta blockers, some antidepressants, and corticosteroids shift metabolism.
- Metabolic adaptation: after prolonged dieting, actual TDEE can run 5–15% below predictions.
- Pregnancy / lactation: adds 300–500 kcal/day, not captured in the formulas.
- Extreme activity levels: above ~1.9× BMR, formulas become less reliable.
Frequently Asked Questions About TDEE
How accurate is a TDEE calculator?
Typically ±10–15% for average adults. Accuracy drops for very muscular, very lean, or obese individuals, and for those with a long dieting history. Confirm with the 2-week test above.
What's the difference between BMR and TDEE?
BMR is what you'd burn at complete rest — the floor. TDEE includes BMR plus all activity (TEF, NEAT, EAT). TDEE is always higher, usually 1.2–1.9× BMR. See the BMR Calculator.
Should I eat back exercise calories?
Usually no. Your activity multiplier already includes regular exercise. Adding "burned" calories on top of TDEE double-counts them. Only add extra if you do an unusually long session (2+ hours) outside your normal routine.
How often should I recalculate TDEE?
Every 5–10 lb of weight change, after a change in activity level, or every 3–6 months for stable weight.
Why does my TDEE seem lower than the calculator says?
Common reasons: you overestimated activity level, you have lower muscle mass than average, metabolic adaptation from prior dieting, low NEAT, or a medical condition like hypothyroidism. Adjust downward by 100–200 kcal and re-test.
Can I increase my TDEE?
- Build muscle with resistance training — adds ~10–30 kcal/day per 10 lb of muscle.
- Increase daily steps — 2,000 steps ≈ 80–120 kcal/day.
- Eat more protein — higher TEF.
- Improve sleep — poor sleep lowers TDEE.
- Add structured exercise — within recovery limits.
How does TDEE change with weight loss?
As you lose weight, TDEE drops because a smaller body requires fewer calories. A 20 lb drop typically lowers TDEE by 200–300 kcal/day. This is why progress plateaus and why targets need to be recalculated.
Is a higher TDEE always better?
Not necessarily. A higher TDEE means you can eat more, but it also means you need to eat more to maintain weight — which is fine for some and burdensome for others. Balance and consistency matter more than maximizing TDEE.
What's metabolic adaptation?
When you eat in a deficit for weeks, your body reduces energy expenditure — lower BMR, less spontaneous movement, better metabolic efficiency. This can add up to 100–300 kcal/day below what the formula predicts. Counter it with adequate protein, resistance training, sleep, and periodic diet breaks at TDEE.
Why is my TDEE different from my friend's if we're the same weight?
Because NEAT, muscle mass, gut microbiome, genetics, and hormonal factors all differ. Two people at the same weight can differ by 200–400 kcal/day in TDEE.
How does age affect TDEE?
BMR declines about 1–2% per decade after 20, mostly from muscle loss and reduced NEAT. A 60-year-old burns 100–200 kcal/day less than a 30-year-old of the same weight, absent training differences.
Does TDEE change during pregnancy?
Yes. TDEE rises ~300 kcal/day in late pregnancy and ~400–500 kcal/day during lactation. Standard formulas don't account for this — work with your healthcare provider for specific targets.
What if I want to gain weight?
Eat 250–500 kcal above TDEE. Target 0.25–0.5% body weight gain per week to minimize fat gain. Combine with resistance training and adequate protein (1.6–2.2 g/kg). See our Protein Calculator for Muscle Building.
Related Calorie and Metabolism Tools
- BMR Calculator — resting metabolic rate
- Maintenance Calorie Calculator — full maintenance framework
- Daily Calorie Calculator — full calorie plan
- Calorie Deficit Calculator — plan a deficit
- Weight Loss Calculator — timeline to goal
- Macro Calculator — full macro plan
- Protein Calculator — daily protein targets
- Protein Calculator for Muscle Building — muscle gain
- Body Fat Percentage Calculator — composition tracking
- BMI Calculator — body mass index
- Water Intake Calculator — hydration target
When to Consult a Professional
This TDEE Calculator provides an educational estimate based on validated equations. It does not diagnose or treat any medical condition. Consult a physician or registered dietitian if you have thyroid disease, diabetes, kidney or liver disease, a history of eating disorders, are pregnant or breastfeeding, are under 18, take medications that affect metabolism, or if your weight changes significantly without an obvious cause. For clinical nutrition (medical weight loss, bariatric surgery, eating disorder recovery, elite sports nutrition), an individualized assessment with metabolic testing is preferred.