Plates this calculator uses
Metric: 25, 20, 15, 10, 5, 2.5 and 1.25 kg on a 20 kg bar. Imperial: 45, 35, 25, 10, 5 and 2.5 lb on a 45 lb bar. Collars are not counted.
How the plates are chosen
Biggest first, the way a bar is loaded in a gym: fewer plates and less time between sets. If a weight can't be made exactly, the calculator says so and gives the nearest weights you can load instead of rounding without telling you.
Where the numbers come from in Steelheft
Working weights in Steelheft are always something you can load: 2.5 kg steps in kilograms and 5 lb in pounds. The set screen shows the plates per side under the weight, so 102.5 kg arrives as 25 + 15 + 1.25 per side. Work out the weight first with the one-rep max calculator.