Plate Weight Calculator — Barbell Total Weight
Instantly add up the total weight on a loaded barbell — enter the bar weight and the number of each plate size per side, and get the combined load in kg or lb.
Unit
kg
per side
per side
per side
per side
per side
per side
per side
per side
Bar + all plates (both sides)
- 1
Plates per side
62.5Sum of all plate weights loaded on one side of the bar. - 2
Total plate weight
62.5 × 2 = 125Both sides are always loaded symmetrically. - 3
Total barbell weight
20 + 125 = 145
How does this calculator work?
Total barbell weight = bar weight + 2 × (sum of each plate weight × count per side). A 20 kg Olympic bar with two 25 kg and one 10 kg plate per side weighs 20 + 2×(50 + 10) = 140 kg. Use the kg or lb selector for your gym.
Formula
How this is calculated
A barbell is always loaded symmetrically: every plate added to one end must be mirrored on the other end. The total loaded weight is therefore the bar weight plus twice the sum of all plate-weight contributions on one side.
Standard Olympic bars (used in most commercial gyms and all IPF/IWF competitions) weigh 20 kg (44 lb) for the men's bar and 15 kg (33 lb) for the women's bar. Standard non-Olympic bars are typically around 10 kg (20 lb). Plate weight is stamped on each disc — common kg sizes are 25, 20, 15, 10, 5, 2.5 and 1.25; common lb sizes are 45, 35, 25, 10, 5 and 2.5.
The calculator supports kg and lb independently. If you work in a gym that mixes units (plates labelled in kg on a lb bar), convert before entering — for example, a 20 kg plate ≈ 44 lb.
Frequently asked questions
The standard men's Olympic barbell (IWF specification) weighs exactly 20 kg (44.1 lb). The women's bar is 15 kg (33.1 lb). Powerlifting bars and specialty bars (safety squat, hex) vary — check the manufacturer's spec.
Gym plates are always loaded in matching pairs — one on each end — so entering per-side quantities is the most natural way to think about loading a bar. The calculator doubles the per-side total automatically.
Not directly — pick one unit and convert all plates before entering. A 20 kg plate is approximately 44.1 lb; a 45 lb plate is approximately 20.4 kg.
Also known as
TG we-Calculate Editorial Team. (2026). Plate Weight Calculator — Barbell Total Weight [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/plate-weight-calculator
TG we-Calculate Editorial Team. "Plate Weight Calculator — Barbell Total Weight." TG we-Calculate. 2026. https://we-calculate.com/calculator/plate-weight-calculator.
TG we-Calculate Editorial Team, "Plate Weight Calculator — Barbell Total Weight," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/plate-weight-calculator
@misc{wecalculate_plate_weight_calculator, title = {Plate Weight Calculator — Barbell Total Weight}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/plate-weight-calculator}}, year = {2026}, note = {TG we-Calculate} }
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