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GymPlateCalc

How many plates is 125?

usually one 45 lb plate per side on a 35 lb bar, or 40 lb per side on a 45 lb bar. On a 45 lb bar, 125 lb needs 80 lb of plates, or 40 lb per side.

(125 lb - bar weight) / 2 = plates per side

Related loads

125 on 45 lb bar40 lb per sideUsually 25 + 10 + 5
125 on 35 lb bar45 lb per sideOne 45 each side
Closest common jump135 lbOne plate on a 45 lb bar

The direct barbell math

125 lb is not a clean one-plate setup on a standard 45 lb bar. It is clean on a 35 lb bar with one 45 lb plate per side.

Why lifters phrase it this way

Lifters usually talk about plates per side because a normal barbell is loaded symmetrically. When someone says “three plates,” they normally mean three large plates on the left sleeve and three matching plates on the right sleeve.

When this answer changes

The total changes if the bar is not 45 lb, if you are using kg plates, if collars are counted, or if the gym uses specialty bars such as trap bars, safety squat bars, or short technique bars.

The plate ladder

TotalPlates on each sideIn kg
135 lb4561.2 kg
185 lb45 + 2583.9 kg
225 lb2 × 45102.1 kg
275 lb2 × 45 + 25124.7 kg
315 lb3 × 45142.9 kg
405 lb4 × 45183.7 kg
495 lb5 × 45224.5 kg

Try any weight

lb
Exact≈ 20.4 kg

45lb

No plates needed: that's just the bar.

Questions

Does the bar count in the total?

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.

How much is 1 45 plates on each side?

If you mean one 45 lb plate on each side, the total is 135 lb on a standard 45 lb bar.

Is this plates per side or total plates?

These answers use the normal gym convention: plates per side. Two plates means two plates on each sleeve, not two plates total.