Convert kilograms and pounds instantly. This free kg to pounds converter works either direction using the exact factor (1 lb = 0.45359237 kg), and also shows stones-and-pounds and grams.
Enter a weight and choose the direction. One kilogram equals about 2.2046 pounds; one pound is exactly 0.45359237 kg.
A quick estimate: multiply kilograms by 2.2 for pounds, or pounds by 0.45 for kilograms. The calculator uses the exact factor for accurate results. 1 stone = 14 pounds.
What This Kg to Pounds Converter Does
Convert kilograms to pounds, or pounds back to kilograms, using the exact internationally defined conversion factor. The result also shows the equivalent in stones and pounds, and in grams, for easier reading across different measurement conventions.
The Exact Conversion Factor
One international pound is defined as exactly 0.45359237 kilograms. Working from this exact figure, one kilogram equals approximately 2.2046226 pounds.
For example, 70 kg converts to about 154.32 lb, which also works out to 11 stone 0.3 lb.
The Quick Estimate vs the Exact Figure
A common shortcut multiplies kilograms by 2.2 for a quick pounds estimate, which is close enough for casual use but introduces a small error that grows with larger weights. This converter always uses the exact factor rather than the rounded shortcut.
Understanding Stones and Pounds
In the UK and Ireland, body weight is often expressed in stones and pounds rather than pounds alone, where 1 stone = 14 pounds. This converter breaks the pounds figure down into whole stones plus remaining pounds automatically.
Why Kilograms and Pounds Coexist
Most of the world uses kilograms as the standard unit of mass under the metric system, while the US and a few other countries still commonly use pounds in everyday life. This split is why weight conversions between the two remain a frequent, practical need.
Common Uses for This Conversion
This conversion comes up frequently when reading body weight from a scale calibrated in a different unit, checking luggage weight limits for international flights, following a recipe or fitness plan written in the other system, or comparing product weights listed in kilograms against a pound-based expectation.
Why Precision Matters More at Larger Weights
The gap between the quick 2.2 estimate and the exact 2.2046226 factor is small for light objects but becomes more noticeable at scale. For a 100 kg weight, the quick estimate gives 220 lb while the exact figure gives about 220.46 lb – a small but real difference that matters more in contexts like shipping costs, medical dosing, or engineering specifications where every fraction of a unit is accounted for.
How to Use the Kg to Pounds Converter
- Choose a direction: kg to pounds, or pounds to kg.
- Enter your weight, decimals included.
- Review the result along with the stones-and-pounds and grams breakdown.
Converting a length instead? See our Inch to CM Converter.