Weight Loss Calculators
Last updated: October 2026
BMR / TDEE Calculator
Estimate your daily calorie needs using the revised Harris-Benedict equation, then adjust for activity to get your Total Daily Energy Expenditure (TDEE) β the rough number of calories you burn in 24 hours when you eat a maintenance diet.
TDEE Calculator
Calculate Total Daily Energy Expenditure (TDEE) by computing BMR via Harris-Benedict equation, then multiplying by an activity factor.
Sustainable Weight Loss Rate Calculator
Find your maximum safe weekly weight loss rate based on your current weight, body fat, dieting experience, and lifestyle demands.
Safe Weight Loss Pace Calculator
Determines the maximum pounds per week you can safely lose while preserving muscle, based on your body fat percentage, current weight, dieting experience, and muscle preservation priority.
Meal Frequency Calculator for Weight Loss
Determines the ideal calorie allocation per meal and snack based on your daily calorie target, number of main meals, and snacks.
Water Weight vs Fat Loss Calculator
Estimates how much of your weekly weight change is true fat loss versus water retention fluctuation.
Weight Loss Plateau Calculator
Estimate how much your metabolism has slowed down during a calorie deficit and why your weight loss has stalled.
Body Fat Loss Calculator
Estimates how much fat versus muscle you'll lose reaching a target body fat percentage.
Body Fat Percentage Calculator (Navy Method)
Estimate your body fat percentage using only a tape measure and the U.S.
Weight Loss Cost Calculator
Estimate the total financial cost of your weight loss plan, including gym fees, supplements, and a healthier food budget.
Ideal Weight Calculator
Estimate ideal body weight from height and sex with the Devine, Robinson, Miller or Hamwi formula, in pounds or kilograms, and compare it with the healthy BMI weight range.
Resting Metabolic Rate Calculator
Calculate your Resting Metabolic Rate using the Mifflin-St Jeor equation, with an optional body composition adjustment for more accuracy.