Fitness calculators.
Starting numbers for calories, macros, one-rep max, body fat and more. Evidence-based, free, no sign-up.
- TDEE & Macro CalculatorCalculate your daily calorie needs and personalized macro targets using evidence-based formulas.
- One Rep Max CalculatorEstimate your max lift from any weight and rep count. Multiple formulas compared.
- Protein CalculatorFind your optimal daily protein intake based on body weight, activity, and goal.
- Body Fat CalculatorEstimate body fat percentage using the US Navy method. See lean mass vs fat mass.
- Calorie Deficit CalculatorPlan your weight loss timeline with a personalized calorie deficit strategy.
- Water Intake CalculatorCalculate recommended daily water intake based on weight, activity, and climate.
- BMI CalculatorCalculate your Body Mass Index and see where you fall on the WHO scale.
- Ideal Weight CalculatorFind your ideal weight range using 4 validated formulas.
- Calories Burned CalculatorEstimate calories burned during any exercise using MET values.
- Strength StandardsSee how your lifts compare. Are you Beginner, Intermediate, or Elite?
Numbers are a start. Tracking is the rest.
Calculators give you a target. Ellim logs the workouts, meals, water and weigh-ins that show whether you are hitting it, free on iPhone.
Start Day 1
Free · iPhone only · Available on the App Store
On a computer?Point your iPhone camera here to install.