Legal / Updated July 2026
Terms of use.
Use these calculators as informational tools and apply reasonable judgment.
Informational use
Results are educational estimates, not medical advice, diagnosis, or treatment.
No guarantee
Population formulas and user inputs cannot guarantee an exact or suitable result for every person.
Responsible use
You are responsible for safe loads, proper technique, equipment checks, and professional support when needed.
Availability
We may improve, correct, add, or remove tools and content.
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