Barbell Load Calculator
This free barbell load calculator tells you exactly which plates to put on each side of the bar to hit a target weight. Enter your total, your bar weight, and choose pounds or kilograms, and it lists the plates per side plus the total loaded on the bar.
Barbell Load Calculator: Quick Facts
- What it finds: the plates to load per side for any target weight.
- Inputs: target weight, bar weight, and units.
- Units: pounds or kilograms.
- Standard bar: 45 lb (about 20 kg).
- Plates used: standard gym and Olympic plate sizes.
How the Barbell Load Calculator Works
The calculator subtracts the bar weight from your target, splits the remainder in half (one side of the bar), and then works down from the biggest plates to the smallest to find the fewest plates that reach the number. If standard plates cannot hit the exact weight, it shows the closest match and how far short it is.
Frequently Asked Questions
How much does a standard barbell weigh?
A standard Olympic barbell weighs 45 pounds, or about 20 kg. Women’s Olympic bars are 15 kg, and many training bars are lighter, so set the bar weight to match yours.
What plates does the calculator use?
In pounds it uses 45, 35, 25, 10, 5, and 2.5 lb plates. In kilograms it uses 25, 20, 15, 10, 5, 2.5, and 1.25 kg plates, the standard gym sizes.
Why does it load the same weight on both sides?
A barbell must be balanced, so plates are always added in matching pairs. The calculator shows the load for one side, and you mirror it on the other.
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