1rm is a very small command-line tool for estimating a One-Rep Max (1RM) based on weight and reps lifted.
The formula used is:
estimate = (weight * reps * 0.033) + weight
$ go get -u github.com/KyleBanks/1rm
$ 1rm -reps R -weight W
- reps int: The number of reps completed
- weight float: The weight lifted, in any unit (kilos, pounds, stones, vibranium shields, etc.)
$ 1rm -reps 6 -weight 425
509.15
1rm is available under the MIT License.