Plate Calculator

You walk up to the bar, you know the number, and then the math starts. What plates go on each side to hit 142.5? Punch in your target and your bar above. The calculator does the subtraction and the greedy loading for you, so you load the bar once and get it right.

How it loads the bar

The bar holds half your target on each sleeve. So the tool takes your target weight, subtracts the bar, and splits the rest in two. That per-side number is what you stack.

From there it works greedy. It reaches for the biggest plate that fits, then the next biggest, down to the smallest, until the side is full. A 100 kg target on a 20 kg bar leaves 80 kg of plates, 40 kg per side, which loads as a 25 and a 15. Fewer plates, faster changes between sets.

When the number does not divide cleanly

Some targets land between plates. A 101 kg lift on a 20 kg bar wants 40.5 kg per side, and the smallest common kg plate is 1.25. The calculator loads what it can, a 25 and a 15 for 40 kg a side, then flags that you are 1 kg short and shows 100 kg as the nearest you can load. If you own micro plates, that gap closes.

The plate sets are the usual gym kit. In kg: 25, 20, 15, 10, 5, 2.5, 1.25. In lb: 45, 35, 25, 10, 5, 2.5. Switch units at the top and the whole calculation follows.

Use it for your warmup ramp

This tool pairs with the lift you are building toward. Find your top weight with the one rep max calculator, then plan the steps up to it with the warmup sets calculator. Run each ramp weight through here and you know every plate change before you touch the bar. That keeps your warmup moving and your working sets fresh.