Kg ↔ lb plate conversions, solved on the bar

A conversion chart tells you 225 lb is 102.1 kg. It doesn't tell you that no combination of kilo plates lands on 102.1. The real choice is 100 kg (220.5 lb) or 102.5 kg (226 lb). That's the question every page below answers: you want a weight in one unit, the gym stocks the other, so what's the closest you can actually load?

Each conversion is solved plate by plate against a standard set: closest under, closest over, and the exact per-side breakdown for both. Loading across units almost never lands exactly, and pretending otherwise is how you miss your numbers. Filter to your weight below, grouped by direction.

The classic milestones

You wantGym stocksConverts toClosest underClosest over
135 lb kg plates 61.2 kg 132.3 lb 137.8 lb
225 lb kg plates 102.1 kg 220.5 lb 226.0 lb
315 lb kg plates 142.9 kg 314.2 lb 319.7 lb
405 lb kg plates 183.7 kg 402.3 lb 407.9 lb
100 kg lb plates 220.5 lb 99.79 kg 100.92 kg
140 kg lb plates 308.6 lb 139.48 kg 140.61 kg
180 kg lb plates 396.8 lb 179.17 kg 180.30 kg

Pounds → kg plates (44)

Kilograms → lb plates (46)