Weight

Kg to lbs chart for body weight and gym plates (with stone)

By the CalculatorCamp editorial team · Published 19 September 2026 · 3 min read

Scales in most of the world read kilograms, US scales read pounds, and UK conversation still runs in stone. Gyms add another layer: a 20 kg plate and a 45 lb plate look identical but are not the same weight. This guide gives you the exact numbers for both situations and a shortcut for when you are standing at the rack.

The exact factor

The international pound is defined as exactly 0.45359237 kg, so 1 kg = 2.20462 lb. One stone is 14 lb = 6.35 kg. To convert kg to lb multiply by 2.2046; to convert lb to kg divide by 2.2046 (or multiply by 0.4536).

Mental shortcut: double the kilograms and add 10%. 75 kg → 150 + 15 = 165 lb (exact: 165.3). It is within 0.2% every time.

Body-weight chart

Body-weight conversion chart, 40–150 kg
Kilograms	Pounds	Stone & pounds
40 kg	88.2 lb	6 st 4.2 lb
45 kg	99.2 lb	7 st 1.2 lb
50 kg	110.2 lb	7 st 12.2 lb
55 kg	121.3 lb	8 st 9.3 lb
60 kg	132.3 lb	9 st 6.3 lb
65 kg	143.3 lb	10 st 3.3 lb
70 kg	154.3 lb	11 st 0.3 lb
75 kg	165.3 lb	11 st 11.3 lb
80 kg	176.4 lb	12 st 8.4 lb
85 kg	187.4 lb	13 st 5.4 lb
90 kg	198.4 lb	14 st 2.4 lb
95 kg	209.4 lb	14 st 13.4 lb
100 kg	220.5 lb	15 st 10.5 lb
105 kg	231.5 lb	16 st 7.5 lb
110 kg	242.5 lb	17 st 4.5 lb
115 kg	253.5 lb	18 st 1.5 lb
120 kg	264.6 lb	18 st 12.6 lb
125 kg	275.6 lb	19 st 9.6 lb
130 kg	286.6 lb	20 st 6.6 lb
135 kg	297.6 lb	21 st 3.6 lb
140 kg	308.6 lb	22 st 0.6 lb
145 kg	319.7 lb	22 st 11.7 lb
150 kg	330.7 lb	23 st 8.7 lb

Gym plates and bars

Kilogram plates come in 1.25, 2.5, 5, 10, 15, 20 and 25 kg; pound plates in 2.5, 5, 10, 25, 35 and 45 lb. A “45” plate is 20.4 kg, not 20 — and a 45 lb bar is 20.4 kg versus the 20 kg Olympic bar. Loading two 20 kg plates on a 20 kg bar gives 60 kg = 132.3 lb; the US equivalent (two 45s on a 45 bar) is 135 lb = 61.2 kg. Log which system your gym uses, or your progress chart will show phantom jumps.

Gym plates and bars
Item	Equivalent	Direction
1.25 kg plate	2.8 lb	kg → lb
2.5 kg plate	5.5 lb	kg → lb
5 kg plate	11.0 lb	kg → lb
10 kg plate	22.0 lb	kg → lb
15 kg plate	33.1 lb	kg → lb
20 kg plate	44.1 lb	kg → lb
25 kg plate	55.1 lb	kg → lb
2.5 lb plate	1.1 kg	lb → kg
5 lb plate	2.3 kg	lb → kg
10 lb plate	4.5 kg	lb → kg
25 lb plate	11.3 kg	lb → kg
35 lb plate	15.9 kg	lb → kg
45 lb plate	20.4 kg	lb → kg
Olympic bar (20 kg)	44.1 lb	kg → lb
Standard US bar (45 lb)	20.4 kg	lb → kg

Common questions

How many pounds is 70 kg? 154.3 lb (11 st 0.3 lb).
How many kg is 200 lb? 90.7 kg.
What is 10 stone in kg? 63.5 kg (140 lb).
Is a kilogram heavier than a pound? Yes — about 2.2 times heavier.

Sources

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