Ounces to Grams Converter
1 ounce = 28.3495 grams
The conversion from ounces to grams bridges two measurement traditions in mass and weight measurement. The gram was defined in 1795 as the mass of one cubic centimeter of water at its maximum density. Knowing that 1 oz equals 28.3495 g is useful for cooking recipes, nutritional labels, postal weights, and jewelry.
Did you know? Did you know? The ounce is commonly used for food packaging, cooking recipes, postal weight, and beverage servings. A standard paperclip weighs about 1 gram - and knowing the conversion between these two units makes working across measurement systems effortless.
Conversion Formula
grams = ounces x 28.3495
To convert ounces to grams, multiply by 28.3495. The avoirdupois ounce is defined as exactly 28.349523125 grams.
Ounces to Grams Table
| Ounces (oz) | Grams (g) |
|---|---|
| 0.5 | 14.1748 |
| 1 | 28.3495 |
| 2 | 56.699 |
| 4 | 113.398 |
| 6 | 170.097 |
| 8 | 226.796 |
| 12 | 340.194 |
| 16 | 453.592 |
| 24 | 680.389 |
| 32 | 907.185 |
About Ounces to Grams
The ounces-to-grams conversion is a kitchen essential, especially for bakers who need precision. While volume measurements (cups, tablespoons) are common in American cooking, professional bakers worldwide prefer weight in grams for accuracy.
A standard US recipe calling for 8 ounces of cream cheese means 226.8 grams. Four ounces of chocolate is 113.4 grams. Sixteen ounces (1 pound) of pasta is 453.6 grams, which is close to the 500-gram packages sold in Europe.
Food packaging in the US shows both systems. A 12-ounce can of soda contains 340.2 grams (or 355 mL of liquid). A 5-ounce bag of chips is about 141.7 grams.
For nutritional tracking, a 3-ounce serving of meat (the recommended portion size) weighs 85 grams. A 1-ounce serving of nuts is about 28 grams - typically around 23 almonds or 14 walnut halves.
In postal and shipping contexts, international packages require gram or kilogram declarations. A 16-ounce (1 lb) package is 453.6 grams. Knowing that 1 ounce is roughly 28 grams helps estimate shipping weights quickly.
For a fast approximation, multiply ounces by 28 or 30. So 4 ounces is about 112-120 grams (actual: 113.4 grams).
Frequently Asked Questions
How many grams is 8 ounces?
8 ounces equals 226.8 grams. This is the weight of a standard package of cream cheese or a cup of many dry ingredients.
How do I measure ounces without a scale?
As a rough guide, 1 ounce of cheese is about the size of your thumb. For liquids, 1 fluid ounce equals about 2 tablespoons. For dry ingredients, a kitchen scale is strongly recommended.
Is a fluid ounce the same as an ounce?
No. A fluid ounce measures volume (about 29.57 mL), while an ounce (oz) measures weight (28.35 grams). They are similar only for water, where 1 fl oz weighs about 1 oz.
How many ounces are in a pound?
There are 16 ounces in 1 pound. So 1 ounce = 1/16 of a pound = 28.35 grams, and 1 pound = 453.6 grams.