About Quantio

Quantio is a collection of fast, focused calculators that help you make everyday decisions about fitness and finance — from estimating your body composition and daily calorie needs to planning loan amortisation, mortgage payments, and salary breakdowns.

Every tool runs entirely in your browser: no accounts, no tracking pixels, no data leaving your device. The numbers are produced from transparent formulas you can inspect, so you can decide for yourself whether the result makes sense for your situation.