0.5 oz
14.17 g
Weight Converter
Oz to Grams Converter
Convert ounces to grams instantly, in both directions — plus a full reference table for common weights.
- Live Bidirectional
- Precise 28.3495 g/oz
- 100% Private
Convert Ounces ⇄ Grams
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Reference
Common Oz to Grams Conversions
1 oz
28.35 g
2 oz
56.70 g
3 oz
85.05 g
4 oz
113.40 g
5 oz
141.75 g
8 oz
226.80 g
16 oz (1 lb)
453.59 g
FAQ
Frequently Asked Questions
1 ounce equals exactly 28.3495 grams (using the international avoirdupois ounce, the standard used for food, body weight, and most everyday measurements).
Multiply the number of ounces by 28.3495. For example, 5 ounces × 28.3495 = 141.75 grams.
Divide the number of grams by 28.3495. For example, 100 grams ÷ 28.3495 = 3.53 ounces.
No. A fluid ounce measures volume (used for liquids), while a regular ounce measures weight/mass. This converter handles weight ounces — for a 1:1 approximation, 1 fluid ounce of water weighs about 1.04 ounces, but the two units aren't interchangeable for other substances.
The United States uses the US customary system for cooking measurements, where ounces (and cups, tablespoons) are standard. Most of the rest of the world uses the metric system with grams, which is why converting between the two is such a common need when following international recipes.
The Ounce to Gram Formula
To convert ounces to grams, multiply by 28.3495: grams = ounces × 28.3495. To go the other way, divide by the same number: ounces = grams ÷ 28.3495. This factor comes from the international avoirdupois ounce, the weight standard used in the US, UK, and most English-speaking countries for food, postage, and body weight.
Full Reference Table
| Ounces | Grams |
|---|---|
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 4 oz | 113.40 g |
| 6 oz | 170.10 g |
| 8 oz | 226.80 g |
| 10 oz | 283.50 g |
| 12 oz | 340.19 g |
| 16 oz (1 lb) | 453.59 g |
| 32 oz (2 lb) | 907.18 g |
This tool defaults to weight ounces. If you're converting a recipe that lists fluid ounces (a volume measurement), the gram equivalent depends on the ingredient's density — water is close to a 1:1 ratio, but flour, sugar, and oil are not.