Contact RepMaths

Found an error in a calculation? Have a suggestion for a new calculator? Want to report a bug or share feedback? We'd like to hear from you.

Get in Touch

Email: [email protected]

We typically respond within 2–3 business days.

What to Contact Us About

• Bug reports — if a calculator gives an unexpected result or an error.
• Formula corrections — if you believe a formula or assumption should be updated.
• New calculator suggestions — tools you'd find useful for strength, training, or nutrition.
• General feedback — anything else about the site or user experience.

What We Can't Help With

RepMaths provides general fitness and nutrition calculators for educational purposes. We cannot provide individualized medical, dietary, or training advice. For personal health or training decisions, please consult an appropriately qualified professional.

See our Disclaimer for more information.