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Calorie Calculator Formulas

Choose the best formula for your needs and get accurate calorie calculations

Most accurate formula for general population, developed in 1990. Currently the gold standard for BMR calculations.

Revised 1984 version of the classic formula. Widely used but tends to overestimate calories for some people.

Based on lean body mass. Most accurate for people who know their body fat percentage and are physically active.

Designed for very lean athletes and bodybuilders with low body fat. Uses lean body mass calculation.

More recent formula (2005) based on European populations. Takes age brackets into account.

Compare results from all formulas side by side to see the differences and choose what works best for you.

Which Formula Should I Choose?

Different formulas work better for different people. Here's a quick guide to help you choose:

Mifflin-St Jeor (Recommended): Best overall formula, most accurate for general population
Harris-Benedict (Classic): Classic formula, widely used but slightly less accurate
Katch-McArdle (Athletes): Most accurate if you know your body fat percentage