Ounces to Grams Converter
Convert ounces to grams instantly. Exact formula, quick chart and examples. Free, no signup.
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About the Ounces to Grams Converter
This free ounces to grams converter gives the exact result as you type, with no button to press and no signup. It is built for everyday use in the US: recipes, travel, fitness, weather, school work and shopping. The formula and a quick reference chart are included below so you can check the math yourself.
How to use it
- Type the number of ounces in the first box.
- Read the result in grams immediately below.
- Use the chart on this page for common values you can check at a glance.
Ounces to Grams formula
grams = ounces × 28.3495
Example: 8 oz × conversion = 226.796 g.
Quick mental estimate: multiply ounces by 28. 4 oz is about 112 g (exact: 113.4 g). For recipes, 1 oz ≈ 30 g is usually fine.
oz to g chart
| Ounces (oz) | Grams (g) |
|---|---|
| 0.25 oz | 7.087 g |
| 0.5 oz | 14.175 g |
| 1 oz | 28.35 g |
| 2 oz | 56.699 g |
| 4 oz | 113.398 g |
| 6 oz | 170.097 g |
| 8 oz | 226.796 g |
| 12 oz | 340.194 g |
| 16 oz | 453.592 g |
| 32 oz | 907.185 g |
g to oz reverse chart
Going the other way? These are the same values read backwards.
| Grams (g) | Ounces (oz) |
|---|---|
| 7.087 g | 0.25 oz |
| 14.175 g | 0.5 oz |
| 28.35 g | 1 oz |
| 56.699 g | 2 oz |
| 113.398 g | 4 oz |
| 170.097 g | 6 oz |
| 226.796 g | 8 oz |
| 340.194 g | 12 oz |
| 453.592 g | 16 oz |
| 907.185 g | 32 oz |
About ounces and grams
The avoirdupois ounce used for food, mail and body weight is exactly 28.349523125 grams, and 16 ounces make a pound. Precious metals use the troy ounce, which is heavier (31.1035 grams), so gold and silver prices are quoted differently.
Common uses
- Recipes and kitchen scales.
- Postage and shipping weights.
- Nutrition labels, which list weight in grams and ounces.
Frequently asked questions
How many grams is 1 ounce?
1 ounce (weight) is 28.3495 g.
How many grams is 8 ounces?
8 oz is 226.8 g, which is half a pound.
How many grams is a pound?
1 lb is 16 oz, or 453.59 g.
Is a fluid ounce the same as a weight ounce?
No. Fluid ounces measure volume (about 29.57 ml), while this converter handles weight ounces (avoirdupois).
What is the formula to convert ounces to grams?
grams = ounces × 28.3495. This page applies it for you instantly as you type.
Last reviewed: November 2026.
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