# Convert: 458.55 kilograms

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We give the results in stones, pounds (lb) and ounces (oz), not as decimal fractions of a pound (1010.nn lb).

If you need the actual formulas so you can make your own calculations to scientific accuracy, Wikipedia has a brilliant article covering Conversion of Units that covers a huge number of formulas for every conceivable unit of measurement.

#### Pounds and Ounces: Unit of Mass

As a measurement of weight, the Pound (abbreviated to lb) is a unit of Mass in the Imperial system (British Imperial System). Although it has generally been superseded by the Metric System, it is still in common use in the following countries; The United Kingdom, USA, Canada, Australia, New Zealand, The Republic of Ireland.

**Fluid measurement**: As a rough guide, if a fluid has a similar mass to water, a simple way to measure it is to weigh the liquid. 1 litre of water weighs 1 kg (kilogram). 500 ml (milliliters or milliliters) of water weighs 500g (grams), 56ml of water weighs 56 grams. Etc.