Ounces to Grams Converter — oz to g

Ounce (oz)
Gram (g)

1 oz = 28.349523 g

Common Ounce to Gram Conversions

  • 1 oz = 28.3495 g
  • 2 oz = 56.699 g
  • 3 oz = 85.049 g
  • 4 oz = 113.398 g
  • 6 oz = 170.097 g
  • 8 oz = 226.796 g
  • 10 oz = 283.495 g
  • 12 oz = 340.194 g
  • 16 oz (1 lb) = 453.592 g

Ounce to Gram Reference Table

Ounce (oz)Gram (g)
0.257.0874
0.514.1748
128.3495
1.542.5243
256.699
385.0486
4113.398
5141.748
6170.097
7198.447
8226.796
10283.495
12340.194
14396.893
16453.592
20566.99
24680.389
32907.185
481360.78
641814.37

How to Convert Ounce to Gram

To convert ounces to grams, multiply the number of ounces by 28.3495.

1 oz = 28.349523 g

Convert 8 oz (1 cup of water) to grams: 8 × 28.3495 = 226.8 grams

Convert 3 oz of chocolate to grams: 3 × 28.3495 = 85.05 grams

To convert grams to ounces, divide the grams by 28.3495.

Real-World Comparisons

\u2022 1 oz (28.35 g) is about the weight of a AA battery or a slice of bread.

\u2022 4 oz (113.4 g) is roughly the weight of a deck of playing cards.

\u2022 8 oz (226.8 g) is a standard cup of water or a baseball.

\u2022 16 oz (453.6 g) equals one pound — about the weight of a can of soup.

Converting ounces to grams is a daily need for cooks, bakers, postal workers, and anyone dealing with small weight measurements across the imperial and metric systems. The ounce (oz) is used primarily in the United States, while grams are the worldwide standard for small-quantity measurements.

Baking Precision

Professional bakers worldwide measure in grams because it’s more precise than volume measurements. If an American recipe calls for 4 ounces of butter, that’s exactly 113.4 grams. Recipes from European baking books will specify 100 grams or 200 grams of flour — knowing the ounce equivalents helps American bakers follow these precisely.

Nutrition and Portion Control

Food packaging in the US lists serving sizes in ounces, while nutrition databases may use grams. A 3-oz serving of chicken breast is about 85 grams. Protein powders, supplements, and meal-prep plans often switch between units. Being fluent in both helps with accurate tracking.

Baby Formula and Medicine

Infant formula and children’s medications are often dosed by weight. Some products measure in ounces, others in grams or milliliters. Accurate conversion ensures correct preparation and dosing, which is especially important for infants.

Frequently Asked Questions

How many grams is 1 ounce?

One ounce (avoirdupois) equals approximately 28.3495 grams.

How do I convert oz to grams?

Multiply the number of ounces by 28.3495. For example, 6 oz × 28.3495 = 170.1 grams.

How many ounces in a pound?

There are 16 ounces in one pound (453.59 grams).

What is 8 oz in grams?

8 ounces is approximately 226.8 grams.

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