Ounces to Grams Converter
Convert ounces to grams for cooking, baking, shipping, and scientific measurements. Works for both avoirdupois ounces (everyday) and troy ounces (gold and silver).
⚖️ Weight📐 Grams = Ounces x 28.3495
Ounces
Please enter valid values.
Formula & Reference
| Variable | Formula | Units |
|---|---|---|
| Ounces to Grams Converter | Grams = Ounces x 28.3495 | grams |
Step-by-Step Examples
Example 1
8 oz Recipe
8 oz to grams for a baking recipe.
- 8 x 28.3495 = 226.8 grams
- = 0.227 kg = 0.5 lbs
✓ 226.8 grams
Example 2
Protein Serving
3.5 oz chicken breast to grams.
- 3.5 x 28.3495 = 99.2 grams
- Close to standard 100g serving size in nutritional labels
✓ 99.2 grams
Example 3
Package Weight
16 oz to grams.
- 16 x 28.3495 = 453.6 grams = 0.454 kg
- 1 pound = 16 oz = 453.6 g
✓ 453.6 grams (1 lb)
Real-World Applications
Cooking & Baking
Convert US recipe ounce measurements to metric grams.
International Shipping
Convert product weights to grams for international customs.
Nutrition Tracking
Convert food portion weights between ounces and grams.
Jewelry & Metals
Convert jewelry and precious metal weights accurately.
Common Mistakes to Avoid
⚠️
Confusing fluid oz and weight oz
A fluid ounce measures volume, not weight. 8 fl oz of water weighs about 8 oz / 236.6 g, but 8 fl oz of honey is much heavier.
⚠️
Using the wrong oz type for metals
Gold is priced in TROY oz (31.1 g each), not regular oz (28.35 g). Using the wrong factor off by 10% is a significant pricing error.
⚠️
Not matching significant figures
Nutritional labels use grams; US measuring cups use ounces. Mismatched precision (1 oz ≠ exactly 28 g) causes small but cumulative recipe errors.
Frequently Asked Questions
How many grams in 1 oz? ▾
28.3495 grams (regular/avoirdupois ounce). 31.1035 grams in a troy ounce.
How many grams in 3 oz? ▾
85.05 grams (3 x 28.3495 = 85.05). A standard 3-oz serving of meat is about 85 grams.
Is 100g the same as 4 oz? ▾
Not quite. 100g = 3.527 oz. 4 oz = 113.4 g. Common recipes that call for '3.5 oz or 100g' are using this approximate equivalency.
What is 8 oz in grams? ▾
226.8 grams. In cooking, 8 oz is often rounded to 225g for convenience.
What is a dry ounce? ▾
A dry ounce (oz) is a unit of weight equal to 28.35 grams. It is different from a fluid ounce (fl oz), which measures volume.