Health calculators

Screening tools, body metrics, and calorie math you can trust.

BMI, body fat, BMR, and other health screening tools — clearly labelled as informational rather than diagnostic, with citations for each formula.

Calculators
277
277 results
Health / Calories

TDEE Calculator

Estimate your total daily energy expenditure (TDEE) — the number of calories you burn each day — from BMR and an activit...

basic
12,795 3.9 1 min
Health / Body Metrics

QTc (Bazett) Calculator

Compute the corrected QT interval (QTc) using the Bazett formula QTc = QT / √RR. Uses RR derived from heart rate (RR sec...

basic
6,906 3.9 1 min
Health / Body Metrics

HAS-BLED Score Calculator

Compute the HAS-BLED score, a 9-item risk index for major bleeding in patients with atrial fibrillation on anticoagulati...

basic
16,692 4.7 1 min
Health / Body Metrics

Body Fat Calculator

Estimate body fat percentage from circumference measurements using the US Navy tape-measure method.

basic
9,938 4.0 1 min