Free Fitness Calculators

Personalized calculators for steps, calories, distance, and more. All free, no signup required.

Most Popular

📏 Step Distance Calculator
Convert steps to distance or distance to steps based on your height
🔥 Steps to Calories Calculator
Calculate how many calories you burn from your daily steps
🚶 Walking Calories Calculator
Calculate calories burned based on walking distance or time
❤️ Heart Rate Zones Calculator
Find your 5 training zones to optimize fat burn and endurance
⏱️ Running Pace Calculator
Convert pace, speed, and predict race finish times for any distance
📐 Body Fat Percentage Calculator
Calculate body fat % using the accurate U.S. Navy method
⚡ TDEE Calculator
Calculate your Total Daily Energy Expenditure and daily calorie needs
🥩 Macro Calculator
Calculate your daily protein, carbs, and fat targets for your fitness goal

All Calculators

📏
Step Distance Calculator
Convert steps to distance or distance to steps based on your height
🔥
Steps to Calories Calculator
Calculate how many calories you burn from your daily steps
🚶
Walking Calories Calculator
Calculate calories burned based on walking distance or time
👟
Steps Per Mile Calculator
Find out how many steps are in a mile or kilometer
⏱️
Walking Time Calculator
Estimate how long it takes to walk any distance
🎯
Daily Step Goal Calculator
Get a personalized daily step goal recommendation
⚖️
Weight Loss Walking Calculator
Calculate walking requirements for your weight loss goals
📊
BMI Calculator
Calculate your Body Mass Index with health insights
❤️
Heart Rate Zones Calculator
Find your 5 training zones to optimize fat burn and endurance
⏱️
Running Pace Calculator
Convert pace, speed, and predict race finish times for any distance
📐
Body Fat Percentage Calculator
Calculate body fat % using the accurate U.S. Navy method
💧
Water Intake Calculator
Find out how much water you should drink daily based on weight and activity
🚴
Activity to Steps Converter
Convert cycling, swimming, yoga, and more into equivalent steps
🥗
Calorie Deficit Calculator
Calculate how many calories to eat per day to reach your goal weight
💓
Resting Heart Rate Calculator
Check your cardiovascular fitness level and Karvonen heart rate zones
⚡
TDEE Calculator
Calculate your Total Daily Energy Expenditure and daily calorie needs
🥩
Macro Calculator
Calculate your daily protein, carbs, and fat targets for your fitness goal
🏅
Marathon Race Predictor
Predict your marathon, half marathon, 10K, and 5K finish times
🫁
VO2 Max Calculator
Estimate your aerobic fitness level using heart rate or Cooper test
🎯
Training Pace Zones
Get your 5 personalized running training pace zones from any race result
↔️
Pace to Speed Converter
Convert min/km, min/mile, km/h, and mph instantly
⏱️
Race Time Predictor
Calculate finish time from pace or find the pace needed for your goal time
📏
Distance Equivalent Calculator
Convert km, miles, meters, yards — with steps, time, and calories
🗺️
GPX Viewer
Upload and view GPX files on an interactive map with stats

Why Use Our Calculators?

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Personalized Results

Calculations based on your height, weight, age, and gender for accurate estimates.

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Science-Based

Using research-backed formulas and MET values for reliable calculations.

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100% Free

No signup required. No ads. Just helpful fitness calculators.