If you don’t know your 1RM, this online kettlebell rep calculator allows you to calculate your 1 rep max. For example, if you don’t have heavier weights available but you know that with the heaviest weight that you do have you can perform 3, 5, or x reps. You can put that value in the box and click calculate.
A real-world example: Joe’s heaviest kettlebell is 56 lbs and he can complete 4 reps max with that. To find out what his 1RM would be, he would select 4RM from the dropdown and enter 56 in the text field, click calculate, and have all values from 1RM to 12RM calculated.
| Rep Max | Percentage | Weight | Unit |
|---|---|---|---|
| 1RM | 100 | 0 | lbs |
| 2RM | 95 | 0 | lbs |
| 3RM | 93 | 0 | lbs |
| 4RM | 90 | 0 | lbs |
| 5RM | 87 | 0 | lbs |
| 6RM | 85 | 0 | lbs |
| 7RM | 83 | 0 | lbs |
| 8RM | 80 | 0 | lbs |
| 9RM | 77 | 0 | lbs |
| 10RM | 75 | 0 | lbs |
| 11RM | 70 | 0 | lbs |
| 12RM | 67 | 0 | lbs |