Pounds to Kilograms Conversion Table (lbs to kg)

This table converts pounds to kilograms without you having to reach for a calculator. Every figure uses the exact factor of 0.45359237 kilograms per pound, so the numbers match what you would get from our Pounds to Kilograms Converter — the converter is the better choice when you need a value that is not on this list.

Pounds to Kilograms Table (1 to 100 lbs)

Common Heavier Weights (110 to 200 lbs)

How to Convert Pounds to Kilograms

Multiply the weight in pounds by 0.45359237. That is the whole calculation. A 12 lb bag of rice is 12 x 0.45359237 = 5.44 kg. A 200 lb person is 200 x 0.45359237 = 90.72 kg. If you only need a rough answer, multiply by 0.45 and you will be within a couple of percent.

How to Convert Kilograms to Pounds

Multiply kilograms by 2.20462262. This direction matters more often than you would think, because most of the world weighs in kilograms and US recipes, gym plates and luggage rules still speak in pounds.

Why the Factor Is 0.45359237

The avoirdupois pound was fixed at exactly 0.45359237 kilograms by international agreement in 1959, so the number never drifts. That is also why some sources print 0.4536 or 0.45 — those are rounded versions of the same definition, not competing standards. NIST keeps the definition; anything you convert with the full figure will agree with any other serious source.

The Mistakes That Actually Cost You

Using 0.45 instead of 0.45359237 on a 150 lb load gives 67.5 kg instead of 68.04 kg — half a kilo of error that matters on a shipping label. People also confuse pounds with stone: 1 stone is 14 pounds, or 6.35 kg, and it is still used for body weight in the UK. Finally, rounding at every step instead of at the end compounds the error.

When You Need This Table

Checking that a 50 lb suitcase is inside the 23 kg airline limit — the table shows 50 lb is 22.68 kg, so it clears. Reading a European recipe that lists 500 g when your scale only reads ounces. Comparing gym plates, where a 45 lb plate is actually 20.4 kg, which is why a metric 20 kg plate feels almost identical. Converting a baby's weight for a paediatrician in a country that reports kilograms.

What This Table Does Not Cover

Troy pounds, used for precious metals, are lighter — 1 troy pound is about 0.373 kg. Metric tonnes are 1,000 kg, or about 2,204.6 lb. And pounds measure weight under gravity while kilograms measure mass, a distinction that only shows up if you travel between planets. For everyday shopping, cooking and travel, the figures above are the ones you want.

Privacy: nothing you look up on this page is sent anywhere — the table is static text and the converter runs in your browser.

Next Step: need a value that is not listed? Use the Pounds to Kilograms Converter to get any number to three decimal places.