GRAMS → OUNCES
GRAMS TO OUNCES · INSTANT · FREE · NO SIGN UP
Grams (g)
g
Ounces (oz)
oz
100 g × 0.035274 = 3.527 oz
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Grams (g) Ounces (oz)

The Formula

To convert grams to ounces, multiply by 0.035274. One avoirdupois ounce is exactly 28.349523125 grams, so the inverse factor is 1 ÷ 28.3495 = 0.035274:

oz = g × 0.035274
g = oz × 28.3495

This uses the avoirdupois ounce (the everyday unit). The troy ounce (used for precious metals) is 31.1035 g.

Common References

Useful cooking and everyday weight references:

28.35 g = 1 oz
100 g = 3.527 oz
200 g = 7.055 oz
454 g = 16 oz (1 lb)
500 g = 17.64 oz
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How to Convert Grams to Ounces

To convert grams to ounces, multiply by 0.035274. One avoirdupois ounce (the standard everyday ounce) equals exactly 28.349523125 grams, so the conversion factor is 1 ÷ 28.3495 = 0.035274. For example, 200 g = 200 × 0.035274 = 7.055 oz. A standard 500 g bag of flour weighs 17.64 oz.

To go the other way (ounces to grams), multiply by 28.3495. For instance, 4 oz = 4 × 28.3495 = 113.4 g. Note: the troy ounce used for gold and silver is 31.1035 g — different from the everyday avoirdupois ounce used here.

When Do You Need to Convert Grams to Ounces?

This conversion is most commonly needed in cooking and baking when working with US or UK recipes that specify ounces, while your kitchen scales measure in grams. It also comes up in nutrition (food packaging weights), postal and shipping (parcel weights), sport (lightweight gear specifications), and retail (jewellery, food items). The US uses ounces and pounds for everyday weight; most of the rest of the world uses grams and kilograms.

Frequently Asked Questions

How many ounces in a gram?

One gram equals approximately 0.035274 ounces. To convert grams to ounces, multiply by 0.035274 or divide by 28.3495. For example, 100 g = 3.527 oz and 250 g = 8.818 oz.

How many grams in an ounce?

One avoirdupois ounce equals exactly 28.349523125 grams. For practical purposes, 1 oz ≈ 28.35 g. This is the standard ounce used for food, postal weights, and everyday items.

How many ounces is 200 grams?

200 grams = 200 × 0.035274 = 7.055 ounces. A standard 200 g block of butter is about 7 oz, which is close to half a US pound.

What is the difference between troy ounce and avoirdupois ounce?

The avoirdupois ounce (used for everyday items) is 28.3495 g. The troy ounce (used for precious metals like gold and silver) is 31.1035 g — about 10% heavier. Always use the avoirdupois ounce for food and general weight conversions.

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