Convert LBS to GRAMS, Free
Type any LBS value and see the GRAMS result instantly. No button press needed.
How to convert LBS to GRAMS
One pound (avoirdupois) equals exactly 453.59237 grams by international definition. To convert pounds to grams, multiply by 453.59237. This is a fixed relationship with no rounding in the formula itself; you only round the output when you choose your display precision. The calculation runs instantly in your browser using JavaScript.
Pounds and grams appear together most often in cooking and nutrition. US recipes frequently use pounds and ounces; metric recipes and nutrition labels use grams. A pound of chicken breast is 453.6 grams. A half-pound burger is 226.8 grams. These quantities matter for portion sizing, nutrition calculations, and scaling recipes accurately. The conversion also comes up in shipping: carrier rate calculators often switch between lb and g/kg depending on the destination country.
Enter the weight in pounds
Type the pound value. Decimals work (e.g., 2.5 lbs). For pounds and ounces, use the split-entry mode.
Read the gram result
The answer appears instantly: lbs x 453.59237. Default precision is 1 decimal place.
Adjust precision if needed
For cooking, 1-2 decimal places is fine. For laboratory or pharmaceutical use, set 4+ decimal places.
Convert grams to pounds
Reverse: enter grams to get pounds. The formula is grams / 453.59237.
Frequently asked questions
How many grams is one pound?
Exactly 453.59237 grams by international definition.
What is 1 pound in grams and ounces?
1 pound = 453.59 grams = 16 ounces. These are all exact by definition.
What is 2 pounds in grams?
2 x 453.59237 = 907.18 grams.
Is the pound used in any scientific contexts?
Science and medicine internationally use the metric system (grams, kilograms). The pound is used in everyday US and UK contexts for body weight, food, and shipping.
What is the difference between the avoirdupois pound and the troy pound?
Avoirdupois pounds (used for everyday goods) = 453.59 g. Troy pounds (used for precious metals) = 373.24 g. The troy pound is rarely encountered outside precious metal trading.