One-Rep Max for 70 kg × 12 Reps
Completing 12 reps at 70 kg suggests an estimated one-rep max of around 97 kg.
How to use this tool
- Enter weight lifted and reps performed in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your estimated 1rm and the full breakdown beneath it.
Project your one-rep max from a high-rep 12-repetition set at 70 kg.
Frequently asked questions
- What is the Epley formula?
- Epley 1RM = weight × (1 + reps ÷ 30). It is one of several accepted formulas; accuracy decreases for sets above 10 reps.
- Is the estimated 1RM accurate?
- It is an estimate. Studies show Epley is accurate to within ~5% for sets of 1–10 reps. For very high rep sets (15+) accuracy drops — use sets of 3–8 for best results.