Terms of use
In short: use them free, have important results checked by a professional, and do not present the site's output as a professional opinion.
Use
Every tool is free and works without an account. An account is only needed to save calculations and favourites.
Results may be used for personal and commercial purposes without separate permission.
Liability
Calculations are provided as is and are for reference. The project is not liable for decisions taken on their basis or for any resulting loss.
Formulas and parameters can go out of date: laws change and rates are revised. The date of the last check appears on the tool page wherever it matters.
Medical, tax and legal calculations are not advice and do not account for the circumstances of an individual case.
Site content
The texts, descriptions and recipes were written for this site. If you use extracts, please link back to the source.
Names and trade marks mentioned in the tools belong to their respective owners.