Is the TDEE calculator free?

Yes — 100% free, no signup, no usage limits.

Does it save my data?

No. Inputs are processed in your browser and never uploaded to a server.

Can I use it on mobile?

Yes. The interface is fully responsive and works on iOS and Android.

What's the difference between BMR and TDEE?

BMR is what you'd burn at complete rest. TDEE is BMR multiplied by an activity factor (1.2 for sedentary, up to 1.9 for very active) and represents real-world daily burn.

WebGenAI

TDEE Calculator — Total Daily Energy Expenditure (Mifflin-St Jeor)

Find how many calories you burn each day given your age, sex, height, weight, and activity level. Uses the Mifflin-St Jeor BMR equation plus standard activity multipliers, then suggests cut, maintain, and bulk targets.

Uses the Mifflin-St Jeor equation. Estimates only — not medical advice.

How to use

Step 1: Choose units (metric or imperial)
Step 2: Enter age, sex, height, and weight
Step 3: Pick your activity level
Step 4: Read your BMR, TDEE, and cut/maintain/bulk targets

BMR + activity = TDEE

BMR (Basal Metabolic Rate) is what you'd burn at complete rest — keeping the heart, lungs, and brain running. The Mifflin-St Jeor equation is the modern standard:

BMR = 10·kg + 6.25·cm − 5·age + (5 if male else −161)

TDEE multiplies BMR by an activity factor (1.2 sedentary → 1.9 very active) to estimate real-world daily burn. To lose ~1 lb/week eat ~500 cal under TDEE; to gain lean muscle eat ~250-300 cal over.

Frequently asked questions

A calculator that estimates your Total Daily Energy Expenditure — the total calories your body burns in a day, including BMR plus activity.