What we do
We design and maintain calculators for finance (loans, mortgages, EMI, compound interest, salary, VAT, sales tax, currency, retirement and more), health (BMI, BMR, TDEE, body fat, calories, macros, water intake, pregnancy), math (percentages, fractions, geometry, logarithms, GCD, LCM, quadratic equations, statistics) and everyday utilities (unit conversion, date difference, fuel cost, GPA, password strength, cooking, time zones, sleep cycles).
Our principles
Every calculator runs entirely in your browser — no server, no tracking of your inputs. Each tool ships with the exact formula used and a worked example so you can verify the result yourself. We support both English and French with native number, date and currency conventions.
Who builds Calcly
Calcly is an independent project run by a small team passionate about making everyday math frictionless. We do not sell user data, we do not require accounts, and we keep ad placement minimal and clearly labeled.
Get in touch
Questions, calculator suggestions or bug reports? Reach us at jeancykalonji50@gmail.com — we read every message.