1RM is a Mac OS X Dashboard widget that calculates your maximum possible lift (1RM, "one-rep max") given the number of times a submaximal lift weight was lifted. For convenience, it also lists simple percentages of the 1RM calculated and a suggest number of reps for that weight.
CHRISTOPHER11111 what info can you extract from a 12 rep max? Useless....1RM allows you to extract much more information and to get an entire work out out if that little bit of data. (Version 1.3)