Unit-To-Unit Weight conversion

Grams to Ounces

1 gram = 0.035273962 ounces

European recipes give dry ingredients in grams, American ones in ounces, and the 28.35 factor between them is why converted baking recipes so often carry odd quantities like 3.5 oz.

Formula oz = g × 0.03527396195

=

Type in either field — the other updates on every keystroke. Need other units? Open the full weight converter.

Grams to Ounces — quick reference
GramOunce
1 g0.035274 oz
2 g0.070548 oz
3 g0.105822 oz
4 g0.141096 oz
5 g0.17637 oz
10 g0.35274 oz
15 g0.529109 oz
20 g0.705479 oz
25 g0.881849 oz
50 g1.763698 oz
100 g3.527396 oz
500 g17.636981 oz
1000 g35.273962 oz
Ounces to Grams — reverse
OunceGram
1 oz28.349523 g
2 oz56.699046 g
3 oz85.048569 g
4 oz113.398093 g
5 oz141.747616 g
10 oz283.495231 g
15 oz425.242847 g
20 oz566.990463 g
25 oz708.738078 g
50 oz1417.476156 g
100 oz2834.952313 g
500 oz14174.761562 g
1000 oz28349.523125 g

Worked examples

Common values
SituationFromTo
A sheet of paper5 g0.1764 oz
Chocolate bar100 g3.527 oz
Cup of flour120 g4.233 oz
Bag of sugar500 g17.64 oz
A kilogram1,000 g35.27 oz

Mental-math shortcut

Divide grams by 28, or multiply by 0.035. For 100 g that gives about 3.6 oz against an exact 3.53, so use 28.35 when precision matters.

Where this conversion comes up

Food labels, postage and recipes cross between grams and ounces. A 100 g chocolate bar is 3.53 oz, and 1 kg is 35.27 oz, which is 2.2 lb.

Common mistakes

Rounding an ounce to 30 g overstates the weight of the ounce by about 6%. Also keep weight ounces apart from fluid ounces, which measure volume.

Background

The avoirdupois ounce is exactly 28.349523125 g, one sixteenth of the international pound fixed at 0.45359237 kg in 1959.

Learn more

Related guides: Imperial vs metric: differences and quick conversion tricks · US cups to grams: flour, sugar, butter and more · How to scale a recipe up or down: the maths and the science · Top 20 liquid ingredients in cooking and how to measure them · Troy vs avoirdupois ounces: the weight of precious metals

Frequently asked

How many ounces are in a gram?
1 gram = 0.035273962 ounces. In the other direction, 1 ounce = 28.349523125 grams.
What is a gram?
A gram is one thousandth of a kilogram. It is the working unit of food labelling, postage and laboratory chemistry across most of the world.
What is a ounce?
An avoirdupois ounce is one sixteenth of a pound, or 28.349523125 grams exactly. It is not the same as the troy ounce used for precious metals.
How many ounces is 100 grams?
100 g is 3.527 oz.

Related weight conversions

Pounds to Kilograms Kilograms to Pounds Ounces to Grams Stones to Pounds Kilograms to Stones Pounds to Ounces Grams to Kilograms