Disclaimer

The calculators on this site are provided for education and everyday estimates. They are designed to be accurate for the inputs given, but results should be double-checked before being used for important decisions, including financial, medical, legal, construction or examination decisions.

Always check the numbers you entered, the units you used, and — for trigonometry — whether your calculator is in degrees or radians mode. The site owner is not responsible for decisions made solely on the basis of a calculator result without independent checking.

If you find an error, please report it through the Contact page so it can be corrected.