CalcEvolution is a free collection of online calculators for money, health, math and everyday life. Our goal is simple: give you fast, accurate answers with clear explanations, on any device, without signing up.
What you’ll find here
- Financial calculators for loans, EMIs, mortgages, SIPs, compound interest, income tax, retirement and more.
- Fitness and health calculators for BMI, calories, body fat, macros, water intake, pregnancy and due dates.
- Math calculators, including a scientific calculator, fractions, percentages, averages, standard deviation and triangles.
- Everyday tools like age, date difference, hours, tips, discounts, unit conversion and a password generator.
How we build our calculators
- Standard formulas. Each calculator uses widely accepted formulas, and every page explains the method with a worked example so you can check the result yourself.
- Private by design. Calculations run in your own browser. The numbers you enter aren’t sent to our servers or stored.
- Kept up to date. Tools that depend on rules that change, like tax slabs, are reviewed and updated when new rules are announced.
- Built for every screen. Every calculator works on phones, tablets and computers.
Important note
Our calculators give estimates for information and education. They aren’t financial, tax, legal or medical advice. For important decisions, please check with a qualified professional.
Get in touch
Found a bug, or want a calculator we don’t have yet? We’d love to hear from you. Visit our contact page.