The pound (lb) is the everyday mass unit of the US customary system, while the gram (g) is the small metric unit that kitchen scales and food labels use worldwide. Converting pounds to grams matters most in the kitchen — following American recipes on a metric scale — and when weighing ingredients, ground coffee, or small parcels listed in pounds.
One pound equals exactly 453.59237 grams, so a 2 lb bag of flour weighs about 907 g and half a pound is 226.8 g. Cooks usually round a pound to 450 or 454 g; the common shortcut of calling a pound 500 g overstates the weight by roughly 10 percent, enough to throw off a baking recipe.
Table Of Contents
Pounds to grams Conversion
1 pounds (lb) is equal to 453.59237 grams (gram).
1 lb = 453.59237 gram
or
1 gram = 0.002204622622 lb
Formula
To convert a mass from pounds (lb) to grams (gram), multiply the mass in pounds by 453.59237
m(gram) = m(lb) × 453.59237
Examples:
Convert 150 pounds to grams:
m(gram) = 150lb × 453.59237 = 68038.8555 gram
Conversion table
| Pounds (lb) | Grams (gram) |
|---|---|
| 1 lb | 453.59237 gram |
| 2 lb | 907.18474 gram |
| 3 lb | 1360.77711 gram |
| 5 lb | 2267.96185 gram |
| 10 lb | 4535.9237 gram |
| 20 lb | 9071.8474 gram |
| 25 lb | 11339.80925 gram |
| 50 lb | 22679.6185 gram |
| 100 lb | 45359.237 gram |
| 150 lb | 68038.8555 gram |
| 180 lb | 81646.6266 gram |
| 200 lb | 90718.474 gram |
| 250 lb | 113398.0925 gram |
| 500 lb | 226796.185 gram |
| 1000 lb | 453592.37 gram |
| Grams (gram) | Pounds (lb) |
|---|---|
| 1 gram | 0.002204623 lb |
| 2 gram | 0.004409245 lb |
| 3 gram | 0.006613868 lb |
| 5 gram | 0.011023113 lb |
| 10 gram | 0.022046226 lb |
| 20 gram | 0.044092452 lb |
| 25 gram | 0.055115566 lb |
| 50 gram | 0.110231131 lb |
| 100 gram | 0.220462262 lb |
| 150 gram | 0.330693393 lb |
| 180 gram | 0.396832072 lb |
| 200 gram | 0.440924524 lb |
| 250 gram | 0.551155655 lb |
| 500 gram | 1.102311311 lb |
| 1000 gram | 2.204622622 lb |
Frequently asked questions
How do I convert pounds to grams?
Multiply the value in pounds by 453.59237 to get the result in grams. For example, 5 lb × 453.59237 = 2267.96185 gram.
How many grams are in 1 pounds?
1 pounds (lb) is equal to 453.59237 grams (gram).
How do I convert grams back to pounds?
Use the inverse operation: divide the value in grams by 453.59237 to get the result in pounds.
How accurate is the pounds to grams conversion?
The converter multiplies by the conversion factor 453.59237 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
How many grams is a quarter pound?
A quarter pound equals 113.4 grams (453.59237 ÷ 4) — the weight behind the quarter-pounder burger patty, which refers to the meat before cooking. Other kitchen anchors: half a pound is 226.8 g, one pound is 453.6 g, and two pounds are 907.2 g, just under a kilogram.
Why do recipes round a pound to 450 grams?
The exact value, 453.59 g, is awkward on a kitchen scale, so cookbook converters round it to 450 g — an error of only 0.8 percent, harmless in cooking. Precision baking sometimes uses 454 g instead. Avoid rounding to 500 g, since a 10 percent surplus of flour or sugar can noticeably change results.
