Free tool · No signup
Load the bar, without the math.
Enter your target weight. We tell you which plates to slide on, per side, in pounds or kilos, on any standard bar. Built for the thirty seconds between sets.
Target
225 lb
Per side
90 lb
Bar
45 lb
Per side, collar first
- 2 × 45 lb
Let the app do the math.
Wodder shows plate loadouts inline with every working set, so you never pull up a calculator mid-workout again.
How plate math works
Bar weight, plus two identical stacks on each sleeve, equals your total. The calculator subtracts the bar, halves the remainder, and packs plates greedily — heaviest first — until it hits the target. When a number cannot be reached with standard plates, we show the leftover so you know whether to reach for microplates or round down to the nearest set.
Bar weights at a glance
A standard Olympic bar in most American gyms weighs 45 pounds. Competition bars for men under IPF rules weigh 20 kilograms — 44.1 pounds — close to the same. Women's bars weigh 35 pounds or 15 kilograms. Short technique bars weigh much less; weigh yours if you are unsure, because an assumption of 45 is wrong more often than you think.
IPF plate colors
Competition plates follow a color code so a lifter can glance at a bar and read it without counting. Twenty-five kilograms is red, twenty is blue, fifteen is yellow, ten is green, five is white. Fractional plates — 2.5 and 1.25 — step down from there in red and chrome. Most American pound plates follow no such convention, which is why we use a distinct color for each denomination.
Loading order
Always load the heaviest plate first, against the collar. Smaller plates stack outward. This distributes load closer to the center of mass and makes collars easier to set. If you have a training partner, run a quick sanity check before unracking: weights per side should match exactly.
Stop doing arithmetic between sets.
Wodder loads every set for you — plates, warmup ramps, working percentages. Free forever plan. No credit card.