Calculator

Plate calculator

Type the total you want on the bar. You'll see the plates for each side, heaviest first.

Each side

How to load a bar

Subtract the bar, then halve what's left: that's the weight on each side.
Load the heaviest plates first, innermost, and use collars.
Plate-loaded machines (leg press, hack squat) count the empty sled as the starting weight, just like the bar.

Not sure what to put on the bar in the first place? See how much weight to lift.

Recomp shows the plates for each side next to every barbell set, in your gym's units, so you load and lift without thinking.