Ounces to Grams Converter
US packaging and blogs still list chicken, chocolate, and butter in ounces while your scale toggles to grams. Enter either unit and read the match — based on the standard kitchen ounce (28.35 g), not fluid ounces.
1 oz = 28.35 g (avoirdupois)
Quick amounts
Weighing flour by volume instead? The cups to grams converter maps US cups to grams per ingredient.
Weight ounces vs fluid ounces
Recipe writers sometimes say “8 oz cream cheese” meaning weight, but “8 oz milk” in a glass measure is volume. This page is for mass (oz on a scale). For cup and milliliter swaps, use cups to mL.
Ounces to grams chart
| Amount | Oz | Grams |
|---|---|---|
| 1 ounce | 1 | 28.35 |
| 2 ounces | 2 | 56.7 |
| 4 ounces (¼ lb) | 4 | 113.4 |
| 8 ounces (½ lb) | 8 | 226.8 |
| 12 ounces | 12 | 340.2 |
| 1 pound (16 oz) | 16 | 453.6 |
| 100 grams | 3.53 | 100 |
| 500 grams | 17.64 | 500 |
| 1 kilogram | 35.27 | 1000 |
Related kitchen tools
Cups to grams, pasta portions (oz / g), tablespoons to teaspoons.
FAQ
- How many grams in an ounce?
- One US avoirdupois ounce is 28.3495 grams — often rounded to 28.35 g on kitchen scales and in cookbooks. This is the ounce used for grocery meat, butter sticks, and most US recipe weights.
- Is a fluid ounce the same as a weight ounce?
- No. A fluid ounce (fl oz) measures volume — about 30 mL for US liquids. A weight ounce (oz) measures mass. Eight fluid ounces of water weigh about 8 weight ounces, but 8 fl oz of honey weighs more.
- How many ounces in a pound?
- Sixteen weight ounces make one pound (lb). That is 453.592 grams per pound. Use the pounds to kilograms tool when you are converting whole-bird or bulk meat labels.
- Why does my scale show 28 g for 1 oz?
- Scales round to the nearest gram. True conversion is 28.35 g. For small amounts the half-gram difference rarely matters; for multiples (16 oz / 1 lb) use the calculator or chart.