Barbell plate calculator
Enter your target weight and see exactly which plates go on each side of the bar. Works in pounds and kilograms, for standard and lighter technique bars.
Plate math in four steps
- 1
Subtract the bar
Take your target weight and subtract the bar. 225 lbs on a 45 lb bar leaves 180 lbs of plates.
- 2
Split it in half
Each side carries half of what's left. 180 lbs of plates means 90 lbs per side.
- 3
Heaviest plates first
Load the biggest plates closest to the collar and work down. 90 lbs per side is two 45s.
- 4
Lock it in
Slide on a collar or clip on each side so nothing shifts during the set.
Common loads, per side
Using standard plates: 45, 35, 25, 10, 5 and 2.5 lbs, or 25, 20, 15, 10, 5, 2.5 and 1.25 kg.
| Total | Plates on each side |
|---|---|
| 95 lbs | 25 |
| 135 lbs | 45 |
| 185 lbs | 4525 |
| 225 lbs | 4545 |
| 275 lbs | 454525 |
| 315 lbs | 454545 |
| 365 lbs | 45454525 |
| 405 lbs | 45454545 |
| 495 lbs | 4545454545 |
| Total | Plates on each side |
|---|---|
| 40 kg | 10 |
| 60 kg | 20 |
| 80 kg | 255 |
| 100 kg | 2515 |
| 120 kg | 2525 |
| 140 kg | 252510 |
| 160 kg | 252520 |
| 180 kg | 2525255 |
| 200 kg | 25252515 |
Plate math, built into every set
In the Trainlo workout player, each barbell set shows exactly what to load, remembers what you lifted last time and starts your rest timer the moment you finish.

Your next PR starts today.
Get 3 days of Trainlo Pro free on iOS and Android. Cancel before the trial ends and you pay nothing.