Ounces to Grams Converter

Type a weight in ounces and see it in grams at once — handy for recipes.

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How to convert ounces to grams

One ounce is exactly 28.349523125 grams. To turn ounces into grams, multiply by 28.35. This is the weight ounce; a fluid ounce measures volume and is a different thing.

Formula: grams = ounces × 28.3495

Example: 8 oz × 28.35 = 226.8 g

oz to g table

Ounces (oz)Grams (g)
0.257.1
0.514.2
128.3
256.7
385
4113.4
5141.7
6170.1
8226.8
10283.5
12340.2
14396.9
16453.6
20567
24680.4
32907.2
481,360.8
641,814.4

Values are rounded to 1 decimal place.

Kitchen and post

  • 16 oz = 1 lb = 453.6 g
  • A 4 oz burger patty is 113 g
  • A 1 oz letter (US first-class) is 28 g
  • 8 fl oz of water weighs about 237 g — close to, but not the same as, 8 oz

How to use it

  • Type a number in the From box — the answer appears straight away
  • Click Swap (⇄) to convert the other way, from grams to ounces
  • Change the units or the category to convert anything else — length, weight, temperature, volume, speed and more

Frequently asked questions

How many grams is 1 ounce?

28.35 grams.

How many grams is 8 oz?

226.8 grams.

Are ounces and fluid ounces the same?

No. Ounces measure weight; fluid ounces measure volume. They only roughly agree for water.

Is my data sent anywhere?

No. The conversion runs in your browser, on your own device.

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