Olympic Barbells
Weightlifting & Strength Standards · 8 specs
Direct Answer
Olympic barbells are precision-engineered under International Weightlifting Federation (IWF) and International Powerlifting Federation (IPF) specifications into Men's (20 kg / 28 mm shaft / 2.2 m total length) and Women's (15 kg / 25 mm shaft / 2.01 m length) bars, each featuring rotating 50 mm (1.97 in) loading sleeves.
Source: IWF Technical and Competition Rules & Regulations / IPF Technical Rules Book · Last reviewed Aug 28, 2026
Specs
| Governing Standards | IWF (Olympic Weightlifting) / IPF (Powerlifting) Specifications |
| Men's Standard Barbell | Weight: 20.0 kg (44.1 lbs) | Length: 2200 mm (7.22 ft) | Shaft Diameter: 28.0 mm (IWF) / 29.0 mm (IPF) |
| Women's Standard Barbell | Weight: 15.0 kg (33.1 lbs) | Length: 2010 mm (6.60 ft) | Shaft Diameter: 25.0 mm (0.98 in) |
| Junior / Technique Barbell | Weight: 10.0 kg (22.0 lbs) | Length: 1700 mm | Aluminum or lightweight steel |
| Sleeve Diameter (Load Ends) | 50.0 mm (1.97 in) outer diameter (takes 50.4–50.8 mm Olympic plates) |
| Sleeve Length | Men: 415 mm (16.3 in) loadable length | Women: 320 mm (12.6 in) |
| Center Knurl Standard | IWF Men's: Center knurl present | IWF Women's: NO center knurl (smooth) |
| Knurl Ring Spacing | IWF Grip Rings: 910 mm (35.8 in) apart | IPF Grip Rings: 810 mm (31.9 in) apart |
Men's vs Women's vs Powerlifting Barbell Specifications
| Metric / Feature | IWF Men's Olympic Bar | IWF Women's Olympic Bar | IPF Men's Powerlifting Bar |
|---|---|---|---|
| Total Weight | 20.0 kg (44.1 lbs) | 15.0 kg (33.1 lbs) | 20.0 kg (44.1 lbs) |
| Overall Bar Length | 2200 mm (7.22 ft) | 2010 mm (6.60 ft) | 2200 mm (7.22 ft) |
| Shaft Grip Diameter | 28.0 mm (1.10") | 25.0 mm (0.98") | 29.0 mm (1.14") Stiff |
| Distance Between Collars | 1310 mm (51.6") | 1310 mm (51.6") | 1310 mm (51.6") |
| Loadable Sleeve Length | 415 mm (16.3") | 320 mm (12.6") | 433 mm (17.0") |
| Sleeve Rotation Bearing | Needle Bearings (Fast spin for Snatch) | Needle Bearings | Bronze Bushings (Controlled rotation) |
| Center Knurling | 120 mm center knurl | No center knurl | 120 mm aggressive knurl (back squat grip) |
| Grip Mark Ring Spacing | 910 mm (35.8") | 910 mm (35.8") | 810 mm (31.9") |
Tensile Strength (PSI) and Shaft Whip Mechanics
- Steel Tensile Strength: Premium bars use alloy spring steel rated between 190,000 to 215,000 PSI. Bars below 150,000 PSI risk permanent bending under heavy drop loads.
- Olympic Whip vs Powerlifting Rigidity: Olympic bars (28mm) are engineered with moderate elastic deflection ('whip') to store kinetic energy during the Clean & Jerk. Powerlifting bars (29mm) are rigid to prevent bar oscillation during maximum squat and bench press attempts.