Terms of use

By using keepcalculator.com you agree to these terms. Last updated 3 November 2026.

Use of the calculators

The calculators are free to use for personal, educational and work purposes. Results are estimates based on standard formulas and the numbers you enter; read the disclaimer before relying on one.

Content

The text, layout and code of this site belong to keepcalculator.com. You may quote a short passage or link to any card. Please do not copy whole pages or calculators onto another site.

No warranty

The site is provided as it is. Every formula is kept as correct as possible, but no card is guaranteed free of errors and the site may not always be available.

Liability

To the extent the law allows, keepcalculator.com is not liable for any loss arising from the use of a result. Check important figures with a qualified professional.

Changes

These terms may be updated; the date above shows the latest version. Questions: info@keepcalculator.com.