Holistic Health
TDEE Calculator
Calculate your Total Daily Energy Expenditure (the exact number of calories your body burns each day) and get your personalized calorie target for weight loss, maintenance, or muscle gain.
Approximate TDEE breakdown for a moderately active person
Disclaimer
This calculator provides general wellness information only. Results are not medical advice and should not replace consultation with a qualified healthcare professional. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
5 min read·Holistic Health
What is TDEE?
TDEE stands for Total Daily Energy Expenditure: the total number of calories your body burns in a day across everything it does. It is the figure your food intake is actually measured against, whatever your goal.
TDEE is the sum of four parts. Basal Metabolic Rate (BMR) is the largest, the energy needed to keep you alive at complete rest. The Thermic Effect of Food (TEF) is the energy spent digesting and absorbing what you eat. Exercise Activity Thermogenesis (EAT) covers deliberate training. Non-Exercise Activity Thermogenesis (NEAT) covers everything else you move through in a day: walking, standing, household tasks, even fidgeting.
This is also the difference between BMR and TDEE. BMR is what you would burn doing nothing at all; TDEE accounts for the life you actually live on top of that. Eating at your TDEE holds weight steady, eating below it creates a deficit for fat loss, and eating above it creates a surplus for building muscle.
Any calculated TDEE is an estimate. Metabolic rate, hormones, gut microbiome, and the large day-to-day swing in non-exercise movement vary between people, so precise measurement is only possible in a laboratory. The number here is a well-validated starting point, not a fixed fact about your body.
How the calculation works
BMR is calculated with the Mifflin-St Jeor equation:
TDEE is BMR multiplied by an activity factor:
- Sedentary (little or no exercise): BMR x 1.2
- Lightly active (1-3 days per week): BMR x 1.375
- Moderately active (3-5 days per week): BMR x 1.55
- Very active (6-7 days per week): BMR x 1.725
- Extremely active (physical job plus exercise): BMR x 1.9
The calculator uses the Mifflin-St Jeor equation rather than the original 1919 Harris-Benedict equations, because validation studies have found it more accurate for the general population.
Worked example: male, 30 years old, 75 kg, 178 cm, moderately active
- BMR: (10 x 75) + (6.25 x 178) - (5 x 30) + 5 = 750 + 1112.5 - 150 + 5 = 1717.5 calories
- TDEE: 1717.5 x 1.55 = 2662 calories per day
- For fat loss (500 calorie deficit): 2162 calories per day
- For muscle gain (300 calorie surplus): 2962 calories per day
How to use your TDEE result
Treat your TDEE as a starting point, not a precise prescription. The most reliable way to find your real maintenance level is to eat at the calculated number for two to three weeks while tracking intake and weight, then adjust. If weight holds steady the estimate was close; if it drifts, move the target by 100 to 200 calories and watch again.
For fat loss, a deficit of about 500 calories below TDEE produces roughly 0.5 kg (1 lb) per week for most people. Larger deficits speed early results but tend to cost muscle and disrupt hormones. As a general floor, intakes below about 1,200 calories for women or 1,500 for men are not advisable without medical supervision.
For muscle gain, a moderate surplus of 200 to 300 calories above TDEE supplies enough to build tissue while keeping fat gain low during a building phase. Bigger surpluses mostly add fat, not muscle.
TDEE is not static. Losing weight lowers BMR because there is less body mass to maintain, improved fitness can raise daily NEAT, and a sustained deficit gradually nudges expenditure down as the body adapts. Recalculate when your weight or training changes meaningfully.
Ayurvedic constitution describes the same variation these formulas average over. Vata types tend toward higher, restless NEAT and a changeable appetite; Pitta types often have strong digestion and steady energy output; Kapha types usually carry a lower metabolic rate and do well with structured, consistent movement. The numbers give you the budget; constitution helps explain why two people on the same budget can experience it so differently.
Frequently asked questions
How accurate is the TDEE calculation?
The Mifflin-St Jeor equation used here has a margin of error of roughly plus or minus 10 percent compared to measured metabolic rate in controlled studies. For most people this means the calculated TDEE is within 150 to 250 calories of actual daily expenditure. The most reliable approach is to use the calculator as a starting point and adjust based on real-world results over two to three weeks.
Why is my TDEE different from what another calculator shows?
Different calculators use different BMR equations. The most common alternatives are the original Harris-Benedict equation (1919, less accurate for modern populations), the revised Harris-Benedict (1984), and the Mifflin-St Jeor equation (1990, used here). Mifflin-St Jeor is generally considered the most accurate for the general population based on validation studies.
Should I eat less than my TDEE to lose weight?
Yes, a calorie deficit below TDEE is necessary for fat loss. A deficit of 300 to 500 calories per day produces steady, sustainable fat loss. Larger deficits can accelerate initial weight loss but often lead to muscle loss, hormonal adaptation, and rebound eating. Anyone with a medical condition should consult a healthcare professional before making significant dietary changes.
Does muscle mass affect TDEE?
Yes, significantly. Muscle tissue burns approximately 6 calories per pound per day at rest, compared to roughly 2 calories per pound for fat tissue. This is why two people with the same weight and height can have meaningfully different TDEEs if their body compositions differ. Resistance training increases muscle mass over time and gradually raises BMR and TDEE.
How often should I recalculate my TDEE?
Recalculate whenever your weight changes by more than 5 kg (11 lbs), when your activity level changes significantly, or after a prolonged period of very low calorie intake, which can suppress metabolic rate. For most people, recalculating every 3 to 6 months or at each meaningful life change is sufficient.
Your TDEE tells you how much energy you burn; your macronutrient split determines where that energy comes from. The Macronutrient Calculator breaks your daily calories into protein, carbs, and fat based on your goal. The Water Intake Calculator shows how much hydration your body needs to support your activity level. And if you want to understand how your Ayurvedic constitution relates to your energy and metabolism, the Prakriti Quiz gives you a framework that complements the numbers.
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TDEE vs BMR - What Is the Difference?
BMR (Basal Metabolic Rate) is the calories your body burns at complete rest - if you did nothing but breathe all day. TDEE is your BMR multiplied by an activity factor that accounts for everything you actually do: walking, working out, fidgeting, working a physical job.
BMR is a theoretical floor. TDEE is the number you actually eat against. Always use your TDEE - not your BMR - when calculating calorie targets for any goal.