Fitness Calculators
Free, evidence-based tools to help you reach your fitness goals. No signup required.
TDEE & Macro Calculator
Calculate your daily calorie needs and personalized macro targets using evidence-based formulas.
One Rep Max Calculator
Estimate your max lift from any weight and rep count. Multiple formulas compared.
Protein Calculator
Find your optimal daily protein intake based on body weight, activity, and goal.
Body Fat Calculator
Estimate body fat percentage using the US Navy method. See lean mass vs fat mass.
Calorie Deficit Calculator
Plan your weight loss timeline with a personalized calorie deficit strategy.
Water Intake Calculator
Calculate recommended daily water intake based on weight, activity, and climate.
BMI Calculator
Calculate your Body Mass Index and see where you fall on the WHO scale.
Ideal Weight Calculator
Find your ideal weight range using 4 validated formulas.
Calories Burned Calculator
Estimate calories burned during any exercise using MET values.
Strength Standards
See how your lifts compare. Are you Beginner, Intermediate, or Elite?
All your fitness tracking in one app
Calculators give you starting numbers. Ellim tracks your real progress — workouts, nutrition, and body composition — all in one place.
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