RackMath

Stop doing plate math in your head. Get the fewest plates for any weight, track your bar, and build circuits with minimal change between lifts.

Rack Math is the only app that eliminates all guesswork from loading a barbell. Save time and avoid mistakes at the gym.

See exactly which plates to load with a color-coded diagram matching IPF plate colors. If your available plates cannot make the precise weight, instantly view the nearest alternatives.

Quickly find the optimal plate combination for any weight using your available inventory. Choose common weights or enter custom values. Visualize each setup with a precise plate diagram.

Monitor your bar in real time as you add or remove plates. See the updated total instantly. Clear the bar with a shake.

Organize and switch between multiple barbell setups for circuit training. Reorder or share configurations for streamlined sessions.

Switch weights mid-workout with minimal plate changes. Instantly see what to add or remove to make transitions during sets and circuits more efficient.

MORE FEATURES

• Supports full plate sets in both pounds and kilograms.
• Choose from four barbell presets or use a custom weight: 25, 35, or 45 lb or 10, 15, or 20 kg.
• Customize your plate inventory to match your gym and save multiple setups for easy switching.
• Save different gym setups and switch between them easily.
• Smart rounding snaps your input to the nearest standard increment.
• Works on iPhone and iPad
• Dark mode support