This converter turns pounds into grams instantly, using the exact factor 1 pound = 453.59237 grams. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight. One thousandth of a kilogram — the workhorse unit of cooking and postage.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
pounds- The amount you are converting, measured in pounds
453.59237- The exact number of grams in one pound
grams- The converted result
How it works, step by step
- Enter the number of pounds you want to convert.
- The value is multiplied by 453.59237, the exact conversion factor.
- The result is displayed in grams, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 pounds
Multiply 5 by 453.59237. That gives 2,267.96 grams. A quick sanity check: one pound is larger than one gram, so the number should get bigger — and it does.
Converting 72 pounds
72 × 453.59237 = 32,658.65 grams. Working backwards, 32,658.65 ÷ 453.59237 returns 72 pounds, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many grams are in one pound?
Exactly 453.59237. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert pounds to grams?
Grams = pounds × 453.59237. To reverse it, divide instead: pounds = grams ÷ 453.59237, which is the same as multiplying by 0.002204622622.
Is the pound bigger than the gram?
Yes. One pound equals 453.592 grams, so it is the larger unit.
Why does my answer differ slightly from other pounds to grams converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a pound?
Exactly 0.45359237 kilograms, the primary US unit of body and produce weight.
What is a gram?
One thousandth of a kilogram — the workhorse unit of cooking and postage.
Pounds to grams reference table
| Pounds | Grams |
|---|---|
| 0.5 lb | 226.7962 g |
| 1 lb | 453.5924 g |
| 2 lb | 907.1847 g |
| 3 lb | 1,360.78 g |
| 5 lb | 2,267.96 g |
| 10 lb | 4,535.92 g |
| 15 lb | 6,803.89 g |
| 20 lb | 9,071.85 g |
| 25 lb | 11,339.81 g |
| 50 lb | 22,679.62 g |
| 75 lb | 34,019.43 g |
| 100 lb | 45,359.24 g |
| 250 lb | 113,398.09 g |
| 500 lb | 226,796.18 g |
| 1000 lb | 453,592.37 g |
Exact factor: 1 pound = 453.59237 grams. Values rounded for display.