About Calcyo
Calcyo is a free collection of online calculators in six languages — for health, finance, math, statistics, geometry, physics, chemistry, sport and everyday life. No sign-up, no clutter, just fast and accurate answers.
Our mission
Make everyday calculations effortless for everyone, in their own language. Every tool is free, works instantly in the browser, and is built to be clear enough for a student and precise enough for a professional.
How our calculators are built
Each calculator uses a real, documented formula — not a guess. We show the formula and a plain-language explanation on every page, add a focused FAQ, and test the results before publishing. When a method is an estimate (like body fat or VO₂ max), we say so clearly.
Built with francophone Africa in mind
Most calculator sites ignore West and Central Africa. Calcyo does the opposite: Mobile Money fee calculators (Wave, Orange Money, MTN, Moov…), FCFA ⇄ euro conversion and a tontine/ROSCA planner — tools that are genuinely hard to find elsewhere.
Available in six languages
Every calculator exists in English, French, Spanish, German, Portuguese and Arabic, with the page adapting to each language (including right-to-left for Arabic). Pick your language at the top of any page.
Questions, corrections or suggestions? Write to us at mbairabe.mc@gmail.com