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A free set of health, fitness and nutrition calculators: BMI, body fat, ideal weight, RMR/TDEE, calories, macros, 1RM, running pace and VO2 max. Each one explains the formula step by step and shows the result on a visual gauge — so you understand it, not just read a number. No signup, works right in the browser, in English, Español, Français, Italiano, Deutsch and हिन्दी.
Hi PH! I built Calculators Fit because most fitness calculators just spit out a number. Here every tool shows the formula, the reference ranges and a visual gauge, so you actually understand the result. It's free, no signup, and translated into 6 languages. Feedback welcome!
Would love to see a progress tracker that saves my last few entries locally so I can spot trends over time without needing an account. That would make the calculators feel way more useful between sessions.
Finally a calculator set that actually shows its work instead of just spitting out a number. The gauge view for TDEE made it easy to see where I land.
Love that the visual gauge pairs with the formula breakdown. Most calculators just spit out a number and leave you guessing, so seeing where the math actually comes from is a really thoughtful touch.
About Calculators Fit on Product Hunt
“Free health & fitness calculators in 6 languages”
Calculators Fit was submitted on Product Hunt and earned 11 upvotes and 4 comments, placing #159 on the daily leaderboard. A free set of health, fitness and nutrition calculators: BMI, body fat, ideal weight, RMR/TDEE, calories, macros, 1RM, running pace and VO2 max. Each one explains the formula step by step and shows the result on a visual gauge — so you understand it, not just read a number. No signup, works right in the browser, in English, Español, Français, Italiano, Deutsch and हिन्दी.
Calculators Fit was featured in Health & Fitness (82.9k followers), Nutrition (978 followers) and Fitness (1.7k followers) on Product Hunt. Together, these topics include over 30.9k products, making this a competitive space to launch in.
Who hunted Calculators Fit?
Calculators Fit was hunted by Vinicius Demetrio. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Calculators Fit stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Vinicius Demetrio