PlatePal: Barbell Calculator

No mental math. No second-guessing.
PlatePal tells you exactly which plates to load — instantly. Enter your target weight and get a clear breakdown of every plate for each side, with a to-scale visualization of the bar.
PLATE CALCULATOR
Type in any weight and see the math immediately. PlatePal uses a greedy algorithm to minimize your plate count, respects your inventory, and always shows you the cleanest possible load.
GYM PROFILES (Pro)
Train at more than one gym? Create a profile for each location with its own plate inventory and bars. Switch between your home setup, a commercial gym, or a competition platform in seconds.
REVERSE CALCULATOR (Pro)
Walk up to a loaded bar and need to know what's on it? Tap plates one at a time and watch your total climb in real time.
PERCENTAGE CALCULATOR (Pro)
Enter any base weight and immediately see every percentage from 20% to 120%, each rounded to the nearest weight you can actually load. Built for percentage-based programming like 5/3/1, Wendler, or conjugate.
PLATE INVENTORY
Tell PlatePal exactly what's on your rack. Mark plates as unlimited or set exact quantities — the calculator only uses what you have.
IMPERIAL & METRIC
Switch between lbs and kg globally. Works with any barbell weight...men's, women's, axle, whatever you train with.
PRO
One-time purchase unlocks the Reverse and Percentage Calculators, Gym Profiles with multiple bars, custom plate colors, and custom app icons.
No ads. No subscription. Just math.