Disclaimer
Fitness and Health Information Disclaimer
1.1 Not Medical Advice
Everything here, including calculator results, guides and strength standards, is for information and education only. It is not medical advice, diagnosis or a personal exercise prescription, and it does not replace a doctor, physiotherapist or certified strength coach. If you have an injury, a medical condition or any concern about training safely, get professional advice before you start or change a program.If you believe any content on our website infringes your copyright, please review our DMCA and Copyright Policy for information on submitting a complaint.
1.2 Individual Results Vary
Age, training history, genetics, bodyweight, sleep, nutrition, stress and recovery all change what you can lift. No result or benchmark on this site is a prediction or promise for you personally.
1.3 Exercise Involves Risk
Heavy lifting, and especially maximal or near-maximal attempts, carries a risk of injury. Warm up properly, use safety pins or a power rack, use collars, and train with a spotter for heavy squats and bench presses. Stop if you feel pain, dizziness or anything unusual. By using this site you accept responsibility for your own training decisions.
Calculator Accuracy Disclaimer
2.1 Estimated Results Only
Calculator outputs are mathematical estimates, not measurements. The one rep max tool uses published equations (Epley 1985, Brzycki 1993, Lander 1985, Lombardi 1989, Mayhew 1992, O’Conner 1989, Wathan 1994). The RPE tool uses a percentage chart derived from Reactive Training Systems. The score tool uses Wilks (1998), Wilks 2020 and DOTS. Your real max depends on form, fatigue, equipment, sleep, time of day and how honest your effort rating was.
2.2 Formula Limitations
Every formula was built from a particular group of lifters under particular conditions. Estimates are most reliable on sets of about 2–8 reps and become less reliable above 10 reps, where endurance matters more than maximal strength. Different formulas will disagree, and the spread between them is a rough guide to uncertainty. RPE estimates depend on how well you judge effort, and are weakest for beginners and for sets rated below RPE 8. Wilks and DOTS adjust for gender and bodyweight only. They do not adjust for age, experience or equipment.
2.3 Not a Substitute for Proper Testing
For competition planning or any situation that needs a verified maximum, use a supervised, properly warmed-up testing session. These tools support planning; they do not replace a real attempt. Scores shown here are not official federation rankings.
Content Accuracy and Updates
3.1 Best Efforts to Be Accurate
We write from published formula sources and established coaching practice, and check figures before publishing. Exercise science changes, so older pages may lag behind newer evidence. Each page shows when it was last reviewed.
3.2 No Warranty of Completeness
The site is provided “as is”. We make no warranty that content is complete, current or error-free. Please cross-check important decisions with a qualified coach or professional. Found a mistake? Tell us through the contact form.
External Links Disclaimer
Links to outside sites are given for convenience. We do not control or endorse their content, accuracy or privacy practices, and following them means you are subject to their policies.
Advertising Disclaimer
Ads on this site are served by third-party networks such as Google AdSense. We do not create, review or endorse them, and an ad is not a recommendation by us.
Affiliate Links
Some links may be affiliate links. If you buy through one, we may earn a commission at no extra cost to you. Affiliate relationships do not influence calculator results, formulas or editorial content.
Limitation of Liability
To the fullest extent permitted by law, this site and its owner,Author, are not liable for any direct, indirect, incidental, consequential or punitive loss or damage arising from the use of, or reliance on, the site, its tools or any linked content. That includes physical injury from applying training information and any decision made from a Tool estimate. Using the site means you accept this limitation.
Contact
Questions about this disclaimer, or an inaccuracy to report? Use the contact form or email [[email protected]]