Terms of Use

Short version: the calculators are free, the math is simple, and how you use the results is up to you.

Using the Site

You're welcome to use every tool on this site, for personal or commercial purposes, at no cost. Don't attempt to disrupt the site, misrepresent its results as something they aren't, or pass its content off as your own.

No Warranty

The site is provided as is, without warranty of any kind. Reasonable care went into the formulas and code, but nothing here is guaranteed to be accurate, complete or fit for a particular purpose. Results are generic arithmetic estimates; see the disclaimer for what that means in practice.

Liability

To the fullest extent permitted by applicable law, the operators of this site accept no liability for any loss or damage arising from use of the site or reliance on its output. Your decisions, in the gym and elsewhere, remain your own.

Changes

These terms and the tools themselves may change at any time without notice. Continued use of the site means you accept the current version of these terms.