Convert the total, not just the plates
For a barbell, add the bar and every plate before converting. A commonly labelled 45 lb bar with one 45 lb plate on each side totals 135 lb, which is approximately 61.235 kg.
kilograms = total pounds × 0.45359237
pounds = total kilograms ÷ 0.45359237
Common pound plates
- 2.5 lb
- 5 lb
- 10 lb
- 25 lb
- 35 lb
- 45 lb
Common kilogram plates
- 1.25 kg
- 2.5 kg
- 5 kg
- 10 kg
- 15 kg
- 20 kg
- 25 kg
Reference totals
| Pounds | Kilograms | Typical context |
|---|---|---|
| 45 lb | 20.411657 kg | Commonly labelled bar or plate |
| 95 lb | 43.091275 kg | 45 lb bar plus two 25 lb plates |
| 135 lb | 61.23497 kg | 45 lb bar plus two 45 lb plates |
| 225 lb | 102.058283 kg | 45 lb bar plus four 45 lb plates |
| 315 lb | 142.881597 kg | 45 lb bar plus six 45 lb plates |
Questions people ask
Is a 20 kg bar exactly 45 lb?
No. 20 kg is about 44.0925 lb. Many gyms use either a 20 kg bar or a bar labelled 45 lb.
What is 135 lb in kilograms?
135 lb is approximately 61.235 kg.
Should I include the bar weight?
Yes, if you want the total load being lifted. Leave it out only when you are comparing plate weight alone.