Convert Ounces to Grams

Enter the weight in ounces below to get the value converted to grams.

Results in Grams:

1 oz = 28.349523 g

How to Convert Ounces to Grams

To convert an ounce measurement to a gram measurement, multiply the weight by the conversion ratio. One ounce is equal to 28.349523 grams, so use this simple formula to convert:

grams = ounces × 28.349523

The weight in grams is equal to the ounces multiplied by 28.349523.

For example, here's how to convert 5 ounces to grams using the formula above.

5 oz = (5 × 28.349523) = 141.747616 g

Ounces and grams are both units used to measure weight. Keep reading to learn more about each unit of measure.

Ounces

One ounce is a unit of mass/weight equal to 1/16 of a pound. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound.^[1]

The ounce is a US customary and imperial unit of weight. Ounces can be abbreviated as oz, for example 1 ounce can be written as 1 oz.

Grams

A gram is the mass/weight equal to 1/1,000 of a kilogram, and is roughly equal to the mass of one cubic centimeter of water.

The gram, or gramme, is an SI unit of weight in the metric system. Grams can be abbreviated as g, for example 1 gram can be written as 1 g.

Ounce Measurements and Equivalent Gram Conversions

Common ounce values converted to the equivalent gram value
Ounces	Grams
1 oz	28.35 g
2 oz	56.7 g
3 oz	85.05 g
4 oz	113.4 g
5 oz	141.75 g
6 oz	170.1 g
7 oz	198.45 g
8 oz	226.8 g
9 oz	255.15 g
10 oz	283.5 g
11 oz	311.84 g
12 oz	340.19 g
13 oz	368.54 g
14 oz	396.89 g
15 oz	425.24 g
16 oz	453.59 g
17 oz	481.94 g
18 oz	510.29 g
19 oz	538.64 g
20 oz	566.99 g
21 oz	595.34 g
22 oz	623.69 g
23 oz	652.04 g
24 oz	680.39 g
25 oz	708.74 g
26 oz	737.09 g
27 oz	765.44 g
28 oz	793.79 g
29 oz	822.14 g
30 oz	850.49 g
31 oz	878.84 g
32 oz	907.18 g
33 oz	935.53 g
34 oz	963.88 g
35 oz	992.23 g
36 oz	1,021 g
37 oz	1,049 g
38 oz	1,077 g
39 oz	1,106 g
40 oz	1,134 g