Ounces to grams converter
Type ounces or grams and watch both update live.
1 oz = 28.349523125 g exactly.
Ounces to grams conversion table
| Ounces (weight) | Grams |
|---|---|
| 0.5 | 14.17 |
| 1 | 28.35 |
| 2 | 56.7 |
| 3 | 85.05 |
| 4 | 113.4 |
| 5 | 141.75 |
| 6 | 170.1 |
| 8 | 226.8 |
| 10 | 283.5 |
| 12 | 340.19 |
| 16 | 453.59 |
| 20 | 566.99 |
| 24 | 680.39 |
| 32 | 907.18 |
- Live two-way conversion
- Kitchen scale accuracy
- Table up to 32 oz
How to convert ounces to grams
- Type a value in the ounces box.
- The grams box updates as you type.
- Check the table for a recipe weight.
An ounce with Roman roots, still used for mail and food
The word ounce comes from the Latin uncia, originally a twelfth of a Roman pound. The modern avoirdupois ounce, exactly 1/16 of a pound, is what US food labels, kitchen scales and postage rates use, and it converts to grams at a fixed rate: 28.349523125 g exactly.
Most countries weigh food and packages directly in grams, so a US recipe or shipping weight listed in ounces usually needs converting before it means anything on a metric scale.
Common ounce weights in grams
| Weight | Ounces | Grams |
|---|---|---|
| Small package tier | 2 oz | 56.7 g |
| Serving of meat or fish | 3 oz | 85.05 g |
| Quarter pound | 4 oz | 113.4 g |
| Common package tier | 6 oz | 170.1 g |
| Half pound | 8 oz | 226.8 g |
| One pound | 16 oz | 453.59 g |
US postage and shipping rates are often tiered right at these ounce boundaries, so a package that just tips over from 3 oz to 4 oz can jump into the next price bracket.
A quick way to estimate without a calculator
- Multiply ounces by 28 for a fast estimate. For 6 oz: 6 x 28 is 168, close to the exact 170.1 g.
- The shortcut runs a little low since the real factor is 28.35, good enough for a recipe but not for a shipping label that bills by the gram.
- For 4 oz, the same shortcut gives 112, close to the exact 113.4 g, a quarter pound.
Ounces to grams FAQ
How many grams is 1 oz?
1 ounce (weight) equals exactly 28.349523125 g, usually rounded to 28.35 g.
How many grams is 8 oz?
8 ounces equals about 226.8 g, or half a pound.
How many grams is a pound?
16 ounces make a pound, which equals about 453.59 g.
Is this for cooking weight or liquid volume?
Weight. For a liquid measured in fluid ounces, use the oz to ml converter instead.
How many grams is 3 oz?
3 ounces equals about 85.05 g, a common serving size for meat or fish.
How many grams is 6 oz?
6 ounces equals about 170.1 g.
Why does US mail get weighed in ounces?
US postage rates have long been tiered by ounce, so a package or envelope weight needs converting to grams to compare against a scale or shipping label calibrated in metric.
How many grams is 2 oz?
2 ounces equals about 56.7 g.