Disclaimer

General Disclaimer

The calculators and content on rpe.training are provided for informational and educational purposes only. All calculator outputs are mathematical estimates based on published formulas and population-level data. They are not a substitute for professional guidance from a qualified coach, registered dietitian, or licensed healthcare provider.

Individual results vary based on genetics, training history, technique, nutrition, recovery, and many other factors that no formula can fully account for. Use calculator outputs as a starting point for programming decisions, not as definitive targets.

Not Medical Advice

Nothing on this website constitutes medical advice. The TDEE, BMI, macro, heart rate zone, and body composition information provided here should not be used to diagnose, treat, or prevent any medical condition. If you have a health concern — including but not limited to cardiovascular issues, metabolic disorders, injuries, or eating disorders — consult a qualified healthcare professional before making changes to your training or nutrition.

Strength training carries inherent risk of injury. Always use proper form, appropriate loads, and safety equipment (collars, spotter arms, or a competent spotter) when training near your limits.

Formula Sources and Accuracy

All calculator formulas are sourced from peer-reviewed research or widely adopted sports science standards:

• RPE percentage table: Tuchscherer/Helms standard used in powerlifting coaching
• 1RM formulas: Epley (1985), Brzycki (1993), Lombardi (1989), Mayhew et al. (1992), O'Conner et al. (1989), Wathan (1994)
• TDEE formulas: Mifflin-St Jeor (1990), Harris-Benedict (1919, revised 1984), Katch-McArdle
• Relative strength scores: Wilks-2 (2020 revision), DOTS (2020), IPF GoodLift (classic raw coefficients)
• Heart rate formulas: Tanaka et al. (2001), Fox et al. (1971)

If you believe a formula is implemented incorrectly, please report it on GitHub.

External Links

This site may contain links to external websites or resources. We are not responsible for the content, accuracy, or availability of third-party sites. Inclusion of a link does not imply endorsement of the linked site or its content.

Limitation of Liability

rpe.training and its creators (Brandon Edmunds / Metaslope) shall not be held liable for any damages, injuries, or losses arising from the use of the calculators, guides, or any other content on this site. You use this site and its tools entirely at your own risk. By using rpe.training, you acknowledge that all outputs are estimates and accept full responsibility for how you apply them to your training and nutrition.