31 Free Calculators
Free Fitness Tools
Every calculator you need for weight loss, muscle gain, nutrition planning, and health tracking.
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— the three numbers every plan is built onMacro Calculator
Determine your exact daily protein, carbs & fat targets.
Open calculatorTDEE Calculator
Find out precisely how many calories your body burns each day.
Open calculatorBMI Calculator
Understand your body composition and healthy weight range.
Open calculatorNutrition
8 toolsMacros, calories, and meal timing — the numbers behind every plan
Macro Calculator
Determine your exact daily protein, carbs & fat targets.
TDEE Calculator
Find out precisely how many calories your body burns each day.
BMR Calculator
Discover your baseline calorie burn before any activity.
Protein Calculator
Get your exact daily protein needs for your body and goals.
Keto Macro Calculator
Set the right 70/25/5 fat-protein-carb split for ketosis.
Intermittent Fasting
Calculate your optimal fasting and eating windows.
Carb Cycling Calculator
Structure your high, medium and low carb days for maximum results.
Alcohol Calorie Calculator
See what your drinks really cost in calories each week.
Weight Loss
5 toolsDeficits, body composition, and healthy targets
Calorie Deficit Calculator
Set the right deficit to lose fat while keeping your muscle.
BMI Calculator
Understand your body composition and healthy weight range.
Body Fat Calculator
Estimate your body fat percentage using the US Navy method.
Ideal Weight Calculator
Find the healthy weight range for your height and frame.
GLP-1 Weight Projection
Trial-average weight loss for GLP-1 medication vs lifestyle change.
Muscle
6 toolsSurplus, protein, and strength — built for gains
Lean Bulk Calculator
Set a precise calorie surplus that builds muscle without excess fat.
Muscle Gain Calculator
Set realistic muscle gain targets with your macros dialled in.
1RM Calculator
Calculate your one-rep max and program your training loads.
Protein Calculator
Get your exact daily protein needs for your body and goals.
Carb Cycling Calculator
Structure your high, medium and low carb days for maximum results.
Creatine Calculator
Work out your creatine loading and maintenance doses.
Fitness
4 toolsCardio, pace, and performance tracking
Calories Burned
See exactly how many calories your workout actually burns.
Running Pace Calculator
Calculate pace, speed and finish time for any distance.
VO2 Max Calculator
Estimate your aerobic fitness level and endurance potential.
Steps Calculator
Convert your daily steps into calories burned and distance.
Health
8 toolsEveryday health markers worth knowing
BMI Calculator
Check your BMI and understand what it means for your health.
Body Fat Calculator
Estimate your body fat percentage using the US Navy method.
Water Intake Calculator
Calculate how much water your body needs every day.
Sleep Cycle Calculator
Find the ideal bedtime for waking up rested and alert.
Waist-to-Hip Ratio
Assess your cardiovascular risk based on body shape.
Menopause Calorie Calculator
Adjust your maintenance calories for perimenopause and menopause.
Fibre Calculator
Find your daily fibre target and the best foods to hit it.
Caffeine Cutoff
The latest time you can drink coffee without ruining your sleep.
Supplements
3 toolsDoses and timing for the supplements that work
Pregnancy
2 toolsTrimester-by-trimester guidance
Got your numbers? Now use them.
The free Macro Guide turns your calculator results into a day-by-day eating plan — what to eat, how much, and how to adjust.
Get the Free Macro Guide