Plate calculator
Doing plate math mid-set is annoying, and it's easy to get wrong when you're training alone. Enter your target weight and bar type, and we'll tell you exactly what to load on each side.
How does this calculator pick the plates?
It works backward from your target weight, subtracting the bar weight and dividing the rest evenly between both sides, then fills that number using the largest standard plates first before moving to smaller ones, the same way you'd naturally load a bar by hand.
Frequently asked questions
Why doesn't my target weight land exactly on the total?
Standard plates come in fixed sizes (45, 35, 25, 10, 5, and 2.5 lb). If your target weight can't be built exactly from those increments, this calculator gets you as close as possible and shows the total you'll actually end up with.
What if I don't have a full set of plates?
This calculator assumes a standard commercial set of plates in pairs. If you're working with a smaller home gym set, treat the output as a target and substitute whatever combination of plates you own that adds up closest to the same number.
Why does bar weight matter?
A standard Olympic barbell weighs 45 lb, but women's bars, technique bars, and some home gym bars weigh less. Since the bar itself counts toward your total weight, picking the wrong bar type will throw off your plate math.
Do I load the same plates on both sides?
Yes. This calculator shows the plates for one side of the bar, loaded identically on the other side, since an evenly loaded bar is safer and more stable than loading mismatched weight on each end.