Weight Converter

Written byOleh Soloninupdated 5 October 2026

Value

From

Result

Result2.204623

Metric and imperial mass without the guesswork

Convert kilograms to pounds, grams to ounces and milligrams to grams using exact factors. Useful for parcels, luggage limits, recipes and gym plates.

Kilograms and pounds meet constantly: airline luggage allowances, shipping labels, barbell plates, American recipes. Getting the factor slightly wrong is what turns a 23 kg bag into an excess-baggage fee.

One kilogram is 2.2046226 pounds. The commonly quoted 2.2 is close: on a 23 kg allowance it gives 50.6 lbs instead of 50.71, and by 100 kg the error approaches half a pound.

How to use

Enter a number.
Choose the unit you are converting from — kilograms, pounds, ounces, stone, troy ounces, carats and more.
Choose the unit you are converting to; the result updates as you type.

Kilograms and pounds

One kilogram is 2.2046 pounds. The shortcut 2.2 is close for small weights and drifts as they grow: 100 kg is 220.46 lb, not 220.

Every row comes from the calculator on this page.
Kilograms	Pounds	Pounds	Kilograms
1	2.205	1	0.454
5	11.023	10	4.536
10	22.046	50	22.68
23	50.706	100	45.359
50	110.231	150	68.039
70	154.324	200	90.718
100	220.462

Ounces, stone and the special units

An ounce is 28.35 g, and sixteen of them make a pound of 453.59 g. Stone is 14 pounds, still used for body weight in the UK; the troy ounce used for gold is heavier than the ordinary ounce, at 31.1 g.

Every row comes from the calculator on this page.
From	To
1 oz	28.35 g
4 oz	113.4 g
8 oz	226.8 g
16 oz	453.59 g
100 g	3.527 oz
1 stone	6.35 kg
11 stone	69.853 kg
1 troy ounce	31.103 g
1 carat	0.2 g
1 tonne	2,204.62 lb

What this calculator shows

The converted mass, live as you type
Milligrams through metric tonnes next to ounces, pounds and stones
Precision fine enough for postage brackets and recipe measurements

What to keep in mind

Uses the international avoirdupois pound: 1 lb = 0.45359237 kg exactly.
A tonne is the metric 1,000 kg; the troy ounce for precious metals is 31.1034768 g and the metric carat 0.2 g.

FAQs

How many pounds is 70 kg?

154.32 lbs. If you use the shortcut 2.2, you would get 154 — close, but the gap widens with heavier weights.

How many kilograms is 200 pounds?

90.72 kg. 150 lb is 68.04 kg and 100 lb is 45.36 kg.

How many grams are in an ounce?

28.3495 g. Recipes usually round to 28 g, which is fine for flour and not fine for yeast or spices in large batches.

How do I convert stone to kg?

Multiply by 6.35029: one stone is 14 lbs, so 11 stone is 69.85 kg.

Is a troy ounce the same as an ounce?

No. A troy ounce, used for gold and silver, is 31.1035 g — about 1.097 ordinary ounces.

Why does my kitchen scale disagree slightly?

A scale rounds to its own step — a gram, or five — and can drift. The conversion is exact; the measurement underneath it usually is not.

Worked example

Airline luggage allowance

Input: 23 kilograms → pounds

Output: 50.71 lbs

Note: This is why the standard checked-bag limit appears as 23 kg in Europe and 50 lbs in the US — but they are not the same: 23 kg is 50.71 lb and 50 lb is 22.68 kg, so follow your airline's stated allowance.

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