Health Calculators

Calculate Total Daily Energy Expenditure from age, height, weight, and activity level using the Mifflin-St Jeor equation — get BMR, maintenance calories, goal targets, and macros. Free online TDEE calculator.

Calculate Basal Metabolic Rate using Mifflin-St Jeor and Harris-Benedict formulas with side-by-side comparison. Optionally add body fat % for Katch-McArdle. Includes TDEE reference table for all activity levels. Free online BMR calculator — no signup required.

Calculate calories burned from steps using MET values. Shows distance, walking duration, fat grams burned, and a step goal comparison table for 2,000–15,000 steps. Metric and imperial units. Free online steps to calories calculator — no signup required.

Estimate your 1RM using six formulas — Epley, Brzycki, Lander, Lombardi, Mayhew, and O'Conner. Formula comparison table and percentage-based training load table from 60–100% 1RM. Free online 1 rep max calculator — no signup required.

Calculate daily protein, carbs, and fat targets from your TDEE and goal — cut, bulk, or maintain. Supports 4 macro split presets (balanced, high protein, low carb, high carb) and custom splits. Free online macro calculator — no signup required.

Calculate running pace, finish time, or distance from any two known values. Supports km and miles with automatic split times for 5K, 10K, half marathon, and marathon. Free online running pace calculator — no signup required.

Predict a child's adult height from father and mother heights using the Mid-Parent (Tanner) and Khamis-Roche formulas with a 95% prediction range. Supports metric and imperial units. Free online child height predictor — no signup required.

Calculate Wilks coefficient, Wilks2 (2020), IPF GL Points, and DOTS Score from body weight and powerlifting total (squat + bench + deadlift). Level classification from Beginner to World Class. Free online Wilks score calculator — no signup required.

Calculate Total/HDL, LDL/HDL, Triglycerides/HDL, and Non-HDL cholesterol ratios with cardiovascular risk interpretation based on AHA/ACC guidelines. Supports mg/dL and mmol/L. Free online cholesterol ratio calculator — no signup required.