Pounds to Kilograms

Convert lb to kg using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.

UnitsMASS

Value in lblb

Value in kg: 0.4536kg

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

x_{kg} = f(x_{lb})

Symbol	Meaning	Unit
$lb$	Value in lb	lb
$kg$	Value in kg	kg

Source: NIST SP 811 / ISO 80000

In short

Convert lb to kg using the internationally-agreed conversion factor \u2014 the bridge between metric and Imperial marine units.