Frequently Asked Questions
What is a 1 Rep Max (1RM)?
Your one-rep maximum is the maximum amount of weight you can lift for a single repetition with proper form. It’s a key metric for measuring strength.
How accurate is the 1RM calculator?
Our calculator uses scientifically-proven formulas like the Epley Formula to estimate your 1RM based on submaximal lifts. Accuracy depends on your actual performance and form.
Which formula does the calculator use?
We use the Epley Formula, one of the most accurate and widely-used methods in strength training. Other formulas are also available for comparison.
Do I need to test my actual 1RM?
No! Our calculator estimates your 1RM using lighter weights and higher reps, making training safer and reducing injury risk.
Can I use this for all exercises?
Yes, the calculator works for any barbell or dumbbell exercise – squats, bench press, deadlifts, and more.
How often should I test my 1RM?
Most athletes test their 1RM every 4-8 weeks to track progress and adjust training programs accordingly.
Is this calculator suitable for beginners?
Absolutely! The calculator helps beginners establish baseline strength and track improvements over time.