Terms of Use

Last updated: October 19, 2026.

Information only

The calculators on this site produce estimates from published equations. They are provided for general information and are not medical, dietary or professional advice.

No warranty

The site is provided as is. We aim to keep the formulas and arithmetic correct but make no guarantee that results are accurate or suitable for any particular purpose, and accept no liability for decisions made using them.

Use

You are free to use the calculators for personal or professional purposes at no cost.