How much does a standard Olympic barbell weigh?
A standard men’s Olympic barbell weighs 20 kg (44.1 lbs / ~45 lbs); a women’s Olympic barbell weighs 15 kg (33 lbs).
Plate Calculator
Determines the optimal combination of weight plates to load on each side of the barbell for standard Olympic bars (20 kg / 45 lb) or specialty barbells.
Scientific Formula & Exercise Physiology Standards
Equation: Greedy Plate Allocation Algorithm | Peer-Reviewed Source: International Weightlifting Federation (IWF) Standard Loading Rule
Weight Per Side = (Target Total Weight - Barbell Weight) ÷ 2
Allocates the largest available standard denominations first (25, 20, 15, 10, 5, 2.5, 1.25 kg or 45, 35, 25, 10, 5, 2.5 lb) to reach the exact target.
Step-by-Step Worked Example: Loading 100 kg on a 20 kg Barbell
- Total weight to load: 100 - 20 = 80 kg
- Target per side: 80 ÷ 2 = 40 kg per side
- Greedy loading: 1 × 25 kg + 1 × 15 kg = 40 kg (or 2 × 20 kg)
Calculation Result: Per Side: 1×25kg, 1×15kg (Exact 100 kg total loaded)
Clinical Nuances, Limitations & Best Practices
- Assumes standard plate denominations; custom home gym plate collections can be configured.
Frequently Asked Questions (Plate Calculator)
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