Units
Bar
Men's, women's and technique bars. Collars are not counted.
Target
Standard plates: 25, 20, 15, 10, 5, 2.5 and 1.25 kg.
100 kg on a 20 kg bar
25 · 15 per side
- Bar20 kg
- Plates per side40 kg
- On the bar100 kg
Get it beside every set
In the app the plate maths sits under the weight field of every barbell lift, along with warm-up ramps and last time's numbers.
Second tool
Percentage of your 1RM, loaded.
Programs prescribe percentages; bars take plates. Enter a one-rep max and every step from 50% to 100% is rounded to the nearest weight you can actually load, with the plates per side for the bar picked above.
Rounded to the nearest 2.5 kg, the smallest step a pair of 1.25 kg plates gives you. No 1RM handy? Estimate one from any set.
| % of 1RM | Exact | Loadable | Per side |
|---|
Assumptions, stated. Standard commercial-gym plates only: 25, 20, 15, 10, 5, 2.5 and 1.25 kg, or 45, 35, 25, 10, 5 and 2.5 lb. A greedy solve, largest plates first, which is also how people load a bar. If your gym has change plates under 1.25 kg or fractional lb plates, some of the weights marked unloadable here are loadable there. Collars are not counted.
