Ounces to Grams Conversion Chart for Cooking
1 ounce equals 28.35 grams. To convert, multiply ounces by 28.35; to go back, divide grams by 28.35. A pound is 16 ounces, or 453.6 g.
Assumptions
- These are avoirdupois ounces, the standard weight ounce for food in Canada, the US and the UK.
- Fluid ounces measure volume, not weight, and are covered separately below.
- Troy ounces (used for gold, 31.1 g) never appear in recipes.
Ounces to grams
| Ounces | Grams (exact) | Grams (rounded) |
|---|---|---|
| ¼ oz | 7.1 g | 7 g |
| ½ oz | 14.2 g | 14 g |
| 1 oz | 28.3 g | 28 g |
| 2 oz | 56.7 g | 57 g |
| 3 oz | 85.0 g | 85 g |
| 4 oz (¼ lb) | 113.4 g | 113 g |
| 5 oz | 141.7 g | 142 g |
| 6 oz | 170.1 g | 170 g |
| 7 oz | 198.4 g | 198 g |
| 8 oz (½ lb) | 226.8 g | 227 g |
| 10 oz | 283.5 g | 284 g |
| 12 oz (¾ lb) | 340.2 g | 340 g |
| 14 oz | 396.9 g | 397 g |
| 16 oz (1 lb) | 453.6 g | 454 g |
| 24 oz (1½ lb) | 680.4 g | 680 g |
| 32 oz (2 lb) | 907.2 g | 907 g |
Grams to ounces
| Grams | Ounces |
|---|---|
| 10 g | 0.35 oz |
| 25 g | 0.88 oz |
| 50 g | 1.76 oz |
| 100 g | 3.53 oz |
| 125 g | 4.41 oz |
| 150 g | 5.29 oz |
| 200 g | 7.05 oz |
| 250 g | 8.82 oz |
| 300 g | 10.58 oz |
| 400 g | 14.11 oz |
| 500 g | 17.64 oz (1.1 lb) |
| 750 g | 26.46 oz (1.65 lb) |
| 1 kg | 35.27 oz (2.2 lb) |
Pounds and kilograms
| Pounds | Kilograms |
|---|---|
| 1 lb | 0.45 kg |
| 2 lb | 0.91 kg |
| 3 lb | 1.36 kg |
| 4 lb | 1.81 kg |
| 5 lb | 2.27 kg |
| 10 lb | 4.54 kg |
| 15 lb | 6.80 kg |
One kilogram is 2.2 lb. Canadian grocery stores often show both per-pound and per-kilogram prices; the per-kilogram price is always 2.2 times higher.
Weight ounces vs fluid ounces
This trips up a lot of people. A fluid ounce is a volume:
| Fluid ounce | Millilitres |
|---|---|
| 1 US fl oz | 29.57 mL |
| 1 imperial (UK) fl oz | 28.41 mL |
| 8 US fl oz (1 US cup) | 236.6 mL |
| 10 imperial fl oz (½ imperial pint) | 284.1 mL |
For water, 1 US fl oz weighs about 29.6 g, close to a weight ounce. For anything else it drifts: 8 fl oz of flour weighs about 4.4 oz (125 g), while 8 fl oz of honey weighs about 12 oz (340 g). If a recipe lists a dry ingredient in "oz", it means weight. If it lists a liquid in "oz", it usually means fluid ounces.
Common package sizes
| Package | Ounces | Grams |
|---|---|---|
| Canned tomatoes (US) | 14.5 oz | 411 g |
| Canned tomatoes (Canada) | 28 fl oz can | 796 mL |
| Cream cheese brick | 8 oz | 227 g (Canada: 250 g) |
| Chocolate chips bag | 12 oz | 340 g |
| Dry pasta box (US) | 16 oz | 454 g |
| Yeast packet | ¼ oz | 7 g |
Why grams are easier
Ounces get clumsy fast: 1 lb 3½ oz is harder to halve than 553 g. Grams also give finer control without fractions, which is why bakers write recipes as baker's percentages. A scale that toggles between oz and g lets you follow any recipe exactly.
For volume-to-weight conversions by ingredient, see cups to grams.
Questions
How many grams are in an ounce?
One avoirdupois ounce, the kind used for food, is 28.35 g. For quick kitchen maths, 28 g or even 30 g is close enough for most savoury cooking.
How many grams is 8 oz?
Eight ounces is 226.8 g, usually rounded to 227 g. That's half a pound, or two US sticks of butter.
Is a fluid ounce the same as an ounce?
No. A weight ounce is 28.35 g, while a US fluid ounce is a volume of 29.57 mL. They only match closely for water and similar liquids; 8 fl oz of honey weighs about 12 oz.
How many ounces is 100 grams?
100 g is about 3.5 oz. A typical 100 g chocolate bar is 3.5 oz.