Fitness calculators built around your goal
Get useful starting numbers, understand every formula, then connect results to a real plan.
TDEE Calculator
Estimate maintenance calories and goal-based daily targets.
Calculate now →Macro Calculator
Calculate a complete daily protein, carbohydrate, and fat plan from calories, body weight, and goal.
Calculate now →Protein Calculator
Set daily protein from body weight and training goal.
Calculate now →Water Intake Calculator
Estimate a practical daily fluid range from body weight, training duration, and environment.
Calculate now →Adult BMI Calculator
Calculate adult body mass index, category, and healthy-BMI weight reference range.
Calculate now →Body Fat Calculator
Estimate body-fat percentage, fat mass, and lean mass using U.S. Navy circumference equations.
Calculate now →Healthy Weight Reference Calculator
View adult healthy-BMI weight range and a separate Devine clinical reference from height.
Calculate now →One-Rep Max Calculator
Estimate 1RM and useful training percentages.
Calculate now →Calorie Deficit Calculator
Set a daily calorie target and estimate weekly loss rate from maintenance calories, body weight, and deficit.
Calculate now →Weight-Loss Timeline Calculator
Estimate how many weeks your target may take.
Calculate now →Lean Bulk Calculator
Choose a modest surplus for controlled muscle gain.
Calculate now →BMR Calculator
Estimate calories your body uses at rest.
Calculate now →Body Recomposition Calculator
Start with calories and protein for slow composition change.
Calculate now →Lean Body Mass Calculator
Estimate fat-free mass from weight and body-fat percentage.
Calculate now →Waist-to-Height Ratio Calculator
Compare waist circumference with height.
Calculate now →Calories Burned Calculator
Estimate exercise energy use from MET, weight, and duration.
Calculate now →Steps-to-Calories Calculator
Estimate walking distance and calorie range from steps, body weight, and height.
Calculate now →Heart-Rate Zone Calculator
Estimate five training zones using age-predicted maximum heart rate and heart-rate reserve.
Calculate now →Running Pace Calculator
Calculate pace, speed, and projected 5K time.
Calculate now →Workout Volume and Progression Calculator
Measure session and weekly lifting volume, compare your previous workout, and get a practical progression recommendation.
Calculate now →