All Calculators — Weight, Body Composition and Calories

whatshouldiweigh.com

Every Calculator

Ten free tools for weight, body composition and calories. No sign-up, nothing stored, everything runs in your browser.

What should I weigh? The healthy weight range for your height, with four classic ideal-weight formulas side by side. Start here.

Body & weight

BMIYour body mass index and the weight range it maps to Body fat percentageUS Navy tape method — no calipers needed Waist ratiosOften a sharper health read than BMI alone

Calories & energy

Daily caloriesWhat to eat to hold, lose or gain weight BMRWhat you burn doing absolutely nothing Calories burned28 activities, scaled to your bodyweight

Food & nutrition

Macro splitCalories into protein, carbs and fat Protein intakeGrams a day for your weight and your goal Water intakeA fluid target for your training and climate

Every tool runs in your browser. Nothing you type is sent anywhere, saved, or shared.

Estimates only — general education, not medical advice. Talk with your doctor before changing how you eat or train.