Free health calculators

Know your numbers in 10 seconds.

BMI, calories, body fat and more. Then track them over time, free, in the Health Cruncher app.

✓ No signup to calculate · ✓ Same formulas as the app · ✓ iPhone, Android, web

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Health Cruncher · free app

One weigh-in a day. Every number updates.

Log your weight in seconds and watch your BMI, TDEE, body fat and calorie target move with it. Your calculator results carry straight in.

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Matt hiking in Phoenix

Who’s behind BMI Cruncher

Hi, I’m Matt. I built BMI Cruncher.

Welcome to BMI Cruncher, where we’ve crafted a user-friendly way to easily calculate your BMI and other health metrics to gain valuable health insights.

Beyond the numbers, we want to help empower you with knowledge to steer your journey to a healthier lifestyle.

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