BMR Calculator
Basal Metabolic Rate – calories your body needs at rest. Mifflin‑St Jeor formula (most accurate).
yrs
kg
cm
Basal Metabolic Rate (BMR)
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Total Daily Energy Expenditure (TDEE)
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TDEE = BMR × Activity Factor
How to use
- Enter your gender, age, weight (kg), and height (cm).
- Select your typical activity level – used to calculate TDEE.
- Click Calculate – BMR and TDEE appear instantly.
- BMR is the number of calories your body needs at complete rest.
- TDEE includes daily activities and exercise – use it to plan weight loss or maintenance.
- Copy the BMR value with one click, or reset all fields.
🔒 100% client‑side – your data never leaves your device.