One pound is exactly 453.59237 g. Recipes in pounds (a pound of butter, 2 lb of flour) convert to grams for a kitchen scale.
How to use the Pounds to Grams Converter
- Type the number of pounds into the Pounds field. Decimals such as 0.5 are fine.
- Read the answer in Grams – it updates as you type, with no button to press.
- To convert the other way, type into Grams and the pounds are recalculated.
- Press Copy results to copy both values with the page title, or Copy link to share this exact conversion.
This page converts only lb ⇄ g. Need a different unit? Use the general weight converter, where you can choose any “from” and “to” unit.
How it works
Both units measure weight, so they are always in the same ratio: one pound equals 453.59237 grams. The calculator multiplies the number of pounds you type by 453.59237 to give grams, and when you type into the grams field it divides by the same factor to give pounds. Because the ratio never changes, doubling the pounds always doubles the grams. Results are calculated at full precision and rounded only for display (up to eight decimal places, with very large or small values shown in scientific notation).
How to convert pounds to grams
- Write down the value in pounds, for example 1 lb.
- Multiply by the conversion factor 453.59237 (because 1 pound = 453.59237 g).
- 1 × 453.59237 = 453.59237 g.
- To go back from grams to pounds, divide by 453.59237 – or multiply by 0.0022046226.
lb to g conversion table
| Pounds | Grams | Grams | Pounds |
|---|---|---|---|
| 0.25 lb | 113.39809 g | 1 g | 0.0022046226 lb |
| 0.5 lb | 226.79619 g | 2 g | 0.0044092452 lb |
| 0.75 lb | 340.19428 g | 5 g | 0.011023113 lb |
| 1 lb | 453.59237 g | 10 g | 0.022046226 lb |
| 1.5 lb | 680.38855 g | 20 g | 0.044092452 lb |
| 2 lb | 907.18474 g | 50 g | 0.11023113 lb |
| 2.5 lb | 1,133.9809 g | 100 g | 0.22046226 lb |
| 5 lb | 2,267.9619 g | 1,000 g | 2.2046226 lb |
| 10 lb | 4,535.9237 g |
What is a pound?
The avoirdupois pound is defined as exactly 0.45359237 kg and is divided into 16 ounces. It is the everyday weight unit in the U.S. and is still widely used in the UK for body weight and food.
What is a gram?
A gram is one thousandth of a kilogram. Recipes, nutrition labels, postage and jewellery weights use grams in metric countries.
Quick mental conversion
For a fast estimate, multiply pounds by about 450 to get grams; the error is about 0.8%. Use the calculator above when you need the exact figure.
Common mistakes to avoid
Confusing fluid ounces (volume) with ounces (weight), using troy ounces for food or regular ounces for gold, and mixing u.s. short tons, uk long tons and metric tonnes.
Formula
1 lb = 453.59237 g1 g = 0.0022046226 lbg = lb × 453.59237Worked example
Inputs — Pounds: 1 lb.
Results — Grams = 453.59237 g.
Frequently asked questions
How many grams in a pound?
453.59 g.
How many grams in half a pound?
About 226.8 g.
How do I convert pounds to grams?
Multiply the number of pounds by 453.59237. For example, 1 lb × 453.59237 = 453.59237 g.
How do I convert grams back to pounds?
Divide by 453.59237 (or multiply by 0.0022046226), or simply type the value into the grams field above.
What is 10 lb in grams?
10 lb = 4,535.9237 g.
What is 5 lb in grams?
5 lb = 2,267.9619 g.
Is this conversion exact?
Yes. The factor comes from the official definitions of both units (NIST and the SI), so the only difference you may see is rounding in the last displayed digit.
Can I convert to other units on this page?
This page converts only between pounds and grams. To pick any weight unit, use the general weight converter linked under Related calculators.
What formula does the Pounds to Grams Converter use?
1 lb = 453.59237 g.