About CalcMundi

CalcMundi is a collection of free online calculators that help people make everyday decisions with clear numbers: how much a mortgage or a car will really cost, how savings grow with compound interest, how long it takes to pay off a credit card, and more.

Our principles

• Free and simple. No sign-up, no downloads.
• Private. Every calculation runs in your browser. We do not receive or store the numbers you type.
• Transparent. Each calculator explains the formula it uses and shows a worked example, so you can check the result yourself.
• Global. Available in English, Portuguese and Spanish.

Accuracy

We test every calculator against the standard formulas used by banks and financial textbooks. Even so, results are estimates: real loans include fees, insurance and taxes that vary by lender and country. Always confirm with your bank or a qualified professional before making a decision.

Contact

Found an error or want to suggest a new calculator? Write to [email protected].