Kcalbit

Instant BMR and TDEE with goals for cut, maintain or bulk.

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Free Calorie Calculator (BMR & TDEE)

Instantly calculate your BMR with Mifflin–St Jeor and get your TDEE. Set a target weight & pace to see a daily calorie goal.

Available in English and Nederlands. No login required.

Calculator
We use ~7,700 kcal per kg to estimate a daily adjustment from your TDEE.
BMR
kcal/day (rest)
TDEE
kcal/day (incl. activity)
Target
kcal/day
Formula: Mifflin–St Jeor. Male: 10×kg + 6.25×cm − 5×age + 5. Female: 10×kg + 6.25×cm − 5×age − 161.