GymCalc
GymCalc keeps plate math instant so you can stay focused on the bar. Load the right weight, estimate %1RM, and convert units without breaking your flow.
Lift Ready
Built for the moments between sets: quick math, clear answers, no distractions. Everything stays tight, legible, and ready for sweaty thumbs.
Plates
Instant plate breakdowns for common bars and gyms.
%1RM
Estimate intensities so you can hit the right effort fast.
Convert
Switch kg/lb without losing your place in the workout.
Warm-Up
Quickly map warm-up sets so you ramp to top weight smoothly.
Plate math without thinking
Enter the target load and bar type; GymCalc lays out the plates automatically so you can rack with confidence.
%1RM and training zones
See quick intensity ranges to plan top sets, back-off work, or AMRAPs without leaving the rack.
Warm-up planner
Auto-calc warm-up weights so you can build to your working sets without guesswork.
Designed for the gym
High contrast, large targets, and haptic-friendly controls stay usable under sweat, chalk, and low light.
Screens
iPhone
One Rep Max
Plate Math
Percentage
Warm-Up
kg / lb
Load smart. Lift strong.
GymCalc keeps your plate math and warm-up ramps fast, so you can stay focused on the sets that matter. Get updates or reach out anytime.