🏋️ Your Lift
kg
reps
⚠️ Most formulas are most accurate for 1–10 reps. Above 10 reps accuracy decreases significantly.
💡 For best results, use a weight where you reach failure between 3–8 reps. Never attempt true 1RM without a spotter.
📊 Results
Estimated 1RM (Average)
120 kg
Based on 100 kg × 5 reps
Formula Breakdown
| Formula | 1RM Estimate | Notes |
|---|
Training Percentage Chart
| % of 1RM | Weight | Goal |
|---|