Pounds to Kilograms

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

UnitsMass

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This calculator requires JavaScript to compute its 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

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