The formula
The pound in US and UK kitchens is the avoirdupois pound, defined as exactly 0.45359237 kg, which NIST Handbook 44 lists. The ounce is one sixteenth of it, exactly 28.349523125 g.
grams = pounds x 453.59237 + ounces x 28.349523125
For 2 lb 4 oz: 2 x 453.59237 = 907.18 g, plus 4 x 28.35 = 113.4 g, makes 1020.58 g.
- Ounces to pounds: divide by 16. 8 oz is 0.5 lb and 24 oz is 1.5 lb, or 1 lb 8 oz.
- Pounds to ounces: multiply by 16. 2.5 lb is 40 oz.
- Grams to pounds and ounces: divide by 28.35 for total ounces, then take out every 16 oz as a pound. 1000 g is 35.27 oz, so 2 lb 3.27 oz.
Ounces of 16 or more carry into pounds: 0 lb 20 oz is the same weight as 1 lb 4 oz, and the converter shows both.
Pounds to grams chart
| Pounds | Grams | Ounces |
|---|---|---|
| 1/4 lb | 113.4 | 4 |
| 1/2 lb | 226.8 | 8 |
| 3/4 lb | 340.2 | 12 |
| 1 lb | 453.6 | 16 |
| 1.5 lb | 680.4 | 24 |
| 2 lb | 907.2 | 32 |
| 2.5 lb | 1,134 | 40 |
| 3 lb | 1,361 | 48 |
| 5 lb | 2,268 | 80 |
Ounces to pounds chart
| Ounces | Pounds | Pounds and ounces | Grams |
|---|---|---|---|
| 1 oz | 0.0625 | 1 oz | 28.3 |
| 2 oz | 0.125 | 2 oz | 56.7 |
| 4 oz | 0.25 | 4 oz | 113.4 |
| 6 oz | 0.375 | 6 oz | 170.1 |
| 8 oz | 0.5 | 8 oz | 226.8 |
| 10 oz | 0.625 | 10 oz | 283.5 |
| 12 oz | 0.75 | 12 oz | 340.2 |
| 16 oz | 1 | 1 lb | 453.6 |
| 20 oz | 1.25 | 1 lb 4 oz | 567 |
| 24 oz | 1.5 | 1 lb 8 oz | 680.4 |
| 32 oz | 2 | 2 lb | 907.2 |
| 48 oz | 3 | 3 lb | 1,361 |
Grams to pounds and ounces chart
| Grams | Pounds and ounces | Ounces | Pounds |
|---|---|---|---|
| 100 g | 3.53 oz | 3.53 | 0.22 |
| 250 g | 8.82 oz | 8.82 | 0.551 |
| 454 g | 1 lb 0.01 oz | 16 | 1 |
| 500 g | 1 lb 1.64 oz | 17.6 | 1.1 |
| 750 g | 1 lb 10.46 oz | 26.5 | 1.65 |
| 1,000 g | 2 lb 3.27 oz | 35.3 | 2.2 |
| 1,500 g | 3 lb 4.91 oz | 52.9 | 3.31 |
| 2,000 g | 4 lb 6.55 oz | 70.5 | 4.41 |
| 2,500 g | 5 lb 8.18 oz | 88.2 | 5.51 |
| 5,000 g | 11 lb 0.37 oz | 176.4 | 11 |
Decimal pounds are not pounds and ounces
A label reading 1.5 lb means one and a half pounds, which is 1 lb 8 oz, not 1 lb 5 oz. Kitchen scales in imperial mode often show pounds and ounces, while shop and deli labels often show decimal pounds, so check which one you are reading before you convert.
Weight, not volume
A pound and an ounce here are weights, so the answer is the same for every ingredient. A fluid ounce is a volume, and its weight depends on what you measure; the ml to fluid ounces converter handles those. For grams to ounces without pounds, use the grams to ounces converter.
| Unit | Exact size | Definition | Source |
|---|---|---|---|
| Ounces | 28.349523125 g | 1 avoirdupois ounce = 1/16 pound | NIST Handbook 44 (2019) |
| Pounds | 453.59237 g | 1 avoirdupois pound = 453.59237 grams | NIST Handbook 44 (2019) |
| Grams | 1 g | 1 gram | NIST Handbook 44 (2019) |
| Kilograms | 1000 g | 1 kilogram = 1000 grams | NIST Handbook 44 (2019) |