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Free Fitness Tools
Free fitness calculators, comparison tools and data from FitGearHQ. Everything runs in your browser with no sign-up, and every tool can be shared, linked or embedded with a credit link.
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Free fitness tools by category
Each family of tools has its own page. More fitness calculators will be added here.
Treadmill Tools
Find, compare and size a treadmill, check it fits your room, and work out what it costs to run against a gym membership.
Fitness Calculators
Ideal weight, body fat, TDEE, heart rate zones, race predictions, age grading and VO2max fitness tests, with every published formula side by side.
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All treadmill tools →Popular tools
The tools our readers use most before they buy.
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Every recommendation uses the same FitScore method.
