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Convert pounds (lb) to kilograms (kg) for body weight, luggage, shipping, products, and everyday measurements.
The international avoirdupois pound is defined as exactly 0.45359237 kilograms. The result is calculated from that exact relationship before display rounding is applied.
Choose a measurement category and two units, then enter any finite positive or negative value allowed by that measurement. Adjust decimal places when the result needs more detail. Swap Units reverses the direction without discarding the current value.
Length · Area · Volume · Weight · Temperature · Speed · Pressure · Energy · Power · Data Storage · Frequency · Time · Angle
Celsius to Fahrenheit · Fahrenheit to Celsius · KG to LBS · LBS to KG · CM to Inches · Inches to CM · KM to Miles · Miles to KM · Liters to Gallons · Gallons to Liters · MB to GB · GB to MB
Calculations run locally. Display precision only changes the visible result; the converter keeps the full JavaScript numeric value for the next calculation.