KG to LBS Converter & Chart

About this tool

This converter uses the exact international standard: 1 pound equals exactly 0.45359237 kilograms. Typing in the kilograms box fills in pounds, and typing pounds fills in kilograms, all calculated in your browser with nothing sent to a server.

How to use the KG to LBS converter

1. Type a weight in the Kilograms box. The page opens with 1 kg, shown as 2.2046 lb.
2. Read the Pounds box, which updates as you type and is rounded to four decimal places.
3. To convert the other way, type in the Pounds box and the Kilograms box fills in.
4. For pounds and ounces or stone, use the charts further down; the converter itself shows decimal pounds only.

Worked example

Enter 70 in Kilograms and the Pounds box shows 154.3236, because 70 ÷ 0.45359237 = 154.32358…, rounded to four places. Going the other way, typing 150 in Pounds shows 68.0389 kg, because 150 × 0.45359237 = 68.0388555.

Common use cases

• Converting body weight between metric and imperial units
• Checking a package or luggage weight limit stated in the other unit
• Converting a product's listed weight for shipping or import purposes
• Converting a recipe's ingredient weight between kitchen scale units

Why pounds and kilograms aren't simply "close enough"

A kilogram is noticeably heavier than a pound — roughly 2.2 times as much — so rounding to "about double" only gets you an approximate answer, not an accurate one. For anything where the exact figure matters (a shipping weight limit, a medical dosage context, a recipe), use the precise conversion rather than a rough mental shortcut, since even a 10% error compounds quickly at higher weights.

Things to watch out for

The 0.45359237 kg-per-pound figure is an exact international definition, not a rounded approximation — small differences between calculators usually come from how many decimal places the result is rounded to, not the underlying conversion. For everyday use, 1-2 decimal places is generally precise enough.

Common kilograms to pounds values

Values are rounded to two decimal places.

How to convert kg to lbs by hand

Multiply the kilograms by 2.2046. For example, 70 kg x 2.2046 = 154.32 lb. A quick shortcut is to double the number and add 10% of the result: 70 doubled is 140, plus 14 is 154, which is within a fraction of a pound. To go from pounds to kilograms, divide by 2.2046 or use the lbs to kg converter.

Weights that come up in kilograms

Airlines often set checked bag limits of 23 kg (50.7 lb) for economy and 32 kg (70.5 lb) for the heaviest allowed bag. A standard Olympic barbell is 20 kg, or 44.1 lb. A newborn baby averages around 3.3 kg (7.3 lb). Gym plates, luggage scales and shipping labels may use different units than you are used to, so converting keeps you under the limit and avoids surprise fees.

Kilograms to stone and pounds

In the UK and Ireland, body weight is often given in stone and pounds. One stone is exactly 14 pounds, so it is 14 × 0.45359237 = 6.35029318 kg. The chart rounds to the nearest whole pound (half-up) before splitting into stone and pounds, and the last column shows decimal stone to one place.

To convert a stone reading back to kilograms, turn it into pounds first. For 11 st 4 lb, that is 11 × 14 + 4 = 158 lb, and 158 × 0.45359237 = 71.67 kg.

How accurate is multiplying by 2.2?

The exact figure is 1 kg = 2.2046226 lb, so multiplying by 2.2 always comes out about 0.21% low. That is 0.46 lb short at 100 kg (220 lb instead of 220.46 lb) and 0.23 lb at 50 kg. For body weight or luggage that is usually close enough. For a shipping limit that sits right at a round number, use the converter above instead. Going the other way, dividing pounds by 2.2 gives kilograms that are about 0.21% high.

Pounds and ounces to kilograms

US baby and kitchen scales often show pounds and ounces. There are 16 ounces in a pound, so divide the ounces by 16, add them to the pounds, then multiply by 0.45359237. For a reading of 7 lb 8 oz: 8 ÷ 16 = 0.5, so 7.5 lb × 0.45359237 = 3.40 kg. Because the pound is defined exactly, the ounce is too: 1 oz = 28.349523125 g. For recipes, 100 g works out to about 3.53 oz.

KG to LBS formula and worked examples

One kilogram is 2.2046226218 pounds, so pounds = kilograms × 2.2046. To go the other way, kilograms = pounds ÷ 2.2046, or multiply pounds by 0.45359237. The converter above applies the exact factor and rounds only at the end.

A quick mental shortcut

Double the kilograms, then add 10% of that doubled figure. For 70 kg: 70 × 2 = 140, plus 14 = 154 lb, against an exact 154.32 lb. It is close enough for a rough check but not for medication, shipping charges or competition weigh-ins, where you should use the exact converter.

Need the opposite direction? Use LBS to KG, or convert length with CM to Feet and Inches. For calorie needs based on your weight, try the TDEE Calculator.