Health & Wellness Calculators
Welcome to our health and fitness calculators, built to provide grounded, scientifically backed mathematical insights into body composition metrics, daily energy expenditure, and fitness milestones. From standard Body Mass Index (BMI) evaluations and Basal Metabolic Rate (BMR) calculations using the Mifflin-St Jeor equation to Total Daily Energy Expenditure (TDEE), ideal body weight formulas, and running pace estimations, our tools assist you on your wellness journey.
We believe physiological metric calculations should be transparent, accessible, and grounded in reputable clinical literature. Each tool provides clear mathematical formulas, explains how activity multipliers are applied, and outlines healthy target ranges established by organizations such as the World Health Organization.
Your health measurements and body metrics remain strictly personal. All calculations happen entirely within your local browser session with zero telemetry or tracking. Please note that while our tools adhere to standard clinical equations, they serve educational and general wellness purposes and do not replace personalized medical advice, diagnosis, or clinical guidance from certified healthcare professionals.
calorie calculator
Mifflin-St Jeor BMR: 10w+6.25h-5a+5 (male) / -161 (female). TDEE = BMR * activity (1.2, 1.375, 1.55, 1.725, 1.9). Goals: lose -500, gain +500, mild +/-250. out: BMR, TDEE, targets, macro split suggestion. Metric/imperial toggle.
ideal weight calculator
Formulas: Devine (M 50+2.3*in over 60; F 45.5+2.3*...), Robinson, Miller, Hamwi + healthy BMI range 18.5-24.9 for the height. Show all, average, not medical advice.
body shape calculator
in: bust, waist, high hip, hip (cm/in), optional shoulder. Classify female shapes (hourglass, pear, apple, rectangle, inverted triangle) by ratio rules; fun/style tool, clear disclaimer.
bmi calculator
BMI = kg/m^2 (or 703*lb/in^2). WHO categories; optional Asian cut-offs (23 / 27.5). out: BMI, category, healthy weight range for height. Adult only; note limits of BMI.
plate weight calculator
(Verify SERP intent first: barbell plate loading assumed.) in: target weight, bar weight (20 kg / 45 lb), available plates. out: plates per side (greedy), achieved weight, kg<->lb.
pace calculator
Solve any of distance, time, pace. out: pace per km & mile, speed, race presets (5K, 10K, half, marathon) with predicted finish; split table.
calorie burn calculator
kcal = MET * weight_kg * hours. Activity list with MET values (from data/mets.json, Compendium of Physical Activities), duration, weight. out: kcal, equivalents.