Education Cluster

How much does a barbell weigh?

Standard Olympic barbells weigh 45 lb or 20 kg. Women's bars are 35 lb / 15 kg. See the full list including technique, trap, and safety squat bars.

Direct Answer

A standard Olympic barbell usually weighs 45 lb in pound gyms or 20 kg in metric gyms.

Common bars: 45 lb / 20 kg, 35 lb / 15 kg, technique bars 5-15 lb

Men's Olympic bar

20 kg / 45 lb

Most common straight bar

15 kg / 35 lb

Shorter, thinner shaft

5-15 lb

Used for practice and beginners

Most commercial gyms use a 45 lb or 20 kg Olympic-style bar as the default barbell.

Some racks use short bars, women's bars, specialty bars, or Smith machines. Those can change the total by 10 lb or more.

Look for end-cap markings, ask the gym staff, or compare the length and shaft diameter to a known Olympic bar.

Yes. Barbell totals include the bar. If you ignore the bar, every plate calculation will be off by 45 lb, 20 kg, or whatever your actual bar weighs.

No. 20 kg is about 44.09 lb. Many gyms round it to 45 lb for convenience.

Use the live calculator when your bar weight, unit, or plate inventory is different.