Calories & Metabolism Calculators
Calculate your BMR, TDEE, and daily calorie needs for any goal — weight loss, maintenance, or muscle gain.
Calorie Calculator — Daily Calorie Needs
Find your daily calorie target for weight loss, maintenance, or weight gain based on your age, gender, weight, height, and activity level.
Calculate now →TDEE Calculator — Total Daily Energy Expenditure
Calculate your Total Daily Energy Expenditure — the total calories you burn each day including exercise and daily activity.
Calculate now →BMR Calculator — Basal Metabolic Rate
Calculate your Basal Metabolic Rate — the calories your body burns at complete rest, just to maintain vital functions.
Calculate now →Maintenance Calories Calculator
Find exactly how many calories you need to eat to maintain your current weight — no gain, no loss.
Calculate now →Weight Loss Calculator — How Long to Reach Your Goal
Calculate how long it will take to reach your goal weight and exactly how many calories to eat per day.
Calculate now →Weight Gain Calculator — Lean Bulk Calorie Target
Calculate daily calorie surplus needed to gain weight or build muscle, with a lean bulk approach to minimize fat gain.
Calculate now →Calorie Deficit Calculator
Calculate your ideal daily calorie deficit for weight loss — choose your deficit size and see the projected results.
Calculate now →Calorie Surplus Calculator for Lean Bulking
Find your ideal daily calorie surplus for muscle gain while minimizing fat accumulation.
Calculate now →Meal Calorie Calculator
Calculate the total calories in any meal from the protein, carbohydrates, and fat content.
Calculate now →Daily Energy Needs Calculator
Calculate your complete daily energy needs broken down by BMR, physical activity, and thermic effect of food.
Calculate now →About Calorie & Metabolism Calculators
Calorie calculators use validated equations — Mifflin-St Jeor for BMR, Harris-Benedict for comparison — to estimate daily energy needs. Layer in activity multipliers from ACSM guidelines to arrive at TDEE. Adjust for goal: subtract 500 kcal/day for roughly 1 lb/week of fat loss, or add 250–500 kcal for lean muscle gain.