Health and fitness calculators
BMI, Kalorien, Körperfett und Fitness-Rechner.
Über Gesundheit-Werkzeuge
Health calculators are only as good as the formula behind them. Ours name the formula they use — Mifflin-St Jeor for metabolic rate, the US Navy method for body fat, WHO cut-offs for BMI — and show the assumptions, because a single number without context is easy to misread.
They work in metric and imperial units and never store what you enter. They are educational tools, not diagnostics: for anything that matters clinically, talk to a professional.
Häufig gestellte Fragen
Is BMI reliable?
BMI is a useful population-level screen but ignores muscle mass, frame size and fat distribution. Athletes often score "overweight" while carrying little fat. Read it alongside waist measurements and body-fat estimates.
Which calorie formula do you use?
Mifflin-St Jeor for basal metabolic rate, multiplied by standard activity factors for total daily energy expenditure. The tool shows both numbers so you can see the effect of activity.