How to convert pounds to grams
To convert a measurement in pounds to grams, multiply the value by 453.59237. The conversion factor comes from the relationship between both units and the kilogram.
For example, to convert 5 lb to grams: 5 × 453.59237 = 2,267.9619 g.
What is a pound?
A pound is an imperial and US customary unit of mass equal to 16 ounces or exactly 0.45359237 kilograms. The pound derives from the Roman 'libra' (hence the symbol 'lb'). The international avoirdupois pound was fixed at exactly 0.45359237 kg by the 1959 international yard and pound agreement between English-speaking nations.
Common uses of pounds include: Body weight in the US and UK; Grocery and produce pricing in the US; Bodybuilding and weightlifting loads; Shipping weights for parcels in the US.
What is a gram?
A gram is a metric unit of mass equal to one thousandth of a kilogram (0.001 kg) or about 0.035 ounces. Defined in 1795 as the mass of one cubic centimeter of water at the temperature of melting ice. The gram is the base for many everyday metric masses and the reference point for nutritional labeling worldwide.
Common uses of grams include: Cooking and recipe ingredient quantities; Nutrition labels and food portions; Postage and small parcel weight; Jewelry and precious metal weighing.
Pounds to grams worked examples
Here are some common values converted:
1 lb = 453.59237 g 5 lb = 2,267.9619 g 10 lb = 4,535.9237 g 50 lb = 22,679.6185 g 100 lb = 45,359.237 g
Frequently asked questions
How many grams are in one pound?
One pound (lb) equals 453.59237 grams (g). Multiply any value in pounds by 453.59237 to convert to grams.
How do I convert pounds to grams?
Multiply the value in pounds by 453.59237. For example, 5 lb × 453.59237 = 2,267.9619 g.
How do I convert grams to pounds?
Multiply the value in grams by 0.002204622622, or divide by 453.59237. Use the swap button on the converter above to reverse the direction.
Is the pound to gram conversion exact?
Yes. Since 1959 the international pound is defined as exactly 0.45359237 kg, so all weight conversions between metric and avoirdupois units use exact factors.
What is the formula for pounds to grams?
The formula is: g = lb × 453.59237. This comes from the definition of both units relative to the kilogram.