Free tools
Fitness calculators,
free for everyone
Work out what to eat and how much, in one tap. No signup, no email, nothing saved — every calculation runs in your browser.
TDEE Calculator
Your basal metabolic rate and total daily energy expenditure, with calorie targets for losing, maintaining, or gaining weight.
Open tool →Protein Intake Calculator
How much protein to eat a day, based on your weight and training goal.
Open tool →Macro Meal Planner
Split a calorie target into protein, carb, and fat grams for a diet style you choose.
Open tool →Diet Planner
A full daily blueprint — calories, macros, and sample meals for morning, afternoon, and evening.
Open tool →Meal Plan Generator
A sample day of meals for a calorie target and diet preference.
Open tool →Intermittent Fasting Calculator
Your eating window and fast end time for 16:8, 18:6, 20:4, or OMAD.
Open tool →