Nuumia
Free, simple calculators. Better UX, no account needed
Nuumia launched on September 1, 2026 with 1 votes, #3,899 of 8,093 launches that month.
What it does
Most calculator sites are a wall of ads and a signup. Nuumia is the opposite: one catalog, nearly 700 calculators and converters, a fast search, and a layout that stays out of the way. The math runs in your browser. No account, and we do not compute your numbers on a server. English, Italian, Spanish, French, and Portuguese, with favorites and recent tools kept on the device. Free to use.
Instant calculators in the browser: percentage, VAT, mortgage, converters, and more. No account.
Add tax to a net price, or extract it from a price that already includes VAT, GST, or sales tax. Calculate adult body-mass index from weight and height, with the usual WHO bands. Convert metres to feet, miles to kilometres, and other everyday length units. Convert Celsius, Fahrenheit, and Kelvin for weather, recipes, and lab notes. See the monthly payment on a home loan, plus total interest and total cost over the term. Project how a principal grows with monthly compounding and an optional monthly deposit. Estimate BMR with Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle, then scale by activity and an optionalfrom nuumia.com
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