Convert 451 grams to all units of mass

451 grams in stones pounds and ounces

Our converter does its sums correctly.
We give the results in stones, pounds (lb) and ounces (oz), not as decimal fractions of a pound (0.nn lb).

Should you want the actual formulas so you can work out your own conversions to scientific accuracy, Wikipedia has a very detailed article explaining Conversion of Units that encompasses a huge array of calculations.

Pounds and Ounces: Unit of Mass

The Pound (abbr. lb) is a unit of Mass of the British Imperial System. Now superseded by the Metric System, it is still used in combination with the Metric system in these countries: The United States, The United Kingdom,Australia, Canada, New Zealand, The Republic of Ireland, India, Malaysia, Sri Lanka (formerly Ceylon) and the Hong Kong.

Measuring Fluids: When measuring any fluid that has a similar mass to water, it is often easier and more accurate to weigh the liquid, than it is to measure it by volume. 1 liter of water weighs 1 kilogram (kg). 500 milliliters (ml) of water weighs 500 g (grams), 56ml of water equals 56 grams. Etc.