Weight lifting calculator features for the moments between sets.

Type a target weight and instantly see the plate combination for each side of the bar. RackMath accounts for the bar weight first, then builds the cleanest loading pattern from the plates available.

Switch unit systems for commercial gyms, Olympic weightlifting clubs, powerlifting meets, garage gyms, and hybrid facilities that use both pound and kilogram plates.

Use common plates out of the box or tailor the calculator around your plate inventory, specialty bars, collars, and preferred loading style.

RackMath helps you move from warmup to working weight with clear jumps. It is useful for solo training, meet day attempt selection, and coaches managing several lifters at once.

The web app is responsive, quick to open, and easy to use from a phone near the rack, a tablet in the gym, or a desktop while programming training blocks.