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Grams to Ounces Calculator

Convert grams to ounces instantly — enter a value in either field and get the result plus kilograms, pounds, and milligrams.

Grams and Ounces

A gram (g) is the base unit of mass in the metric system, equal to one thousandth of a kilogram. It is used worldwide for everyday measurements — from food nutrition labels to postal weights.

An ounce (oz) — specifically the avoirdupois ounce — is a unit of mass in the imperial and US customary systems. It equals 1/16 of a pound and is commonly used in the United States for food, cooking, and shipping.

One ounce equals exactly 28.349523125 grams.

How to Convert Grams to Ounces

Divide the mass in grams by 28.3495:

oz = g ÷ 28.3495

Example: Convert 100 grams to ounces. 100 ÷ 28.3495 = 3.527 oz

How to Convert Ounces to Grams

Multiply the number of ounces by 28.3495:

g = oz × 28.3495

Example: Convert 5 ounces to grams. 5 × 28.3495 = 141.748 g

Quick Reference Table

Grams (g)Ounces (oz)
25 g0.882 oz
50 g1.764 oz
100 g3.527 oz
250 g8.818 oz
500 g17.637 oz
1000 g35.274 oz

Frequently Asked Questions

How many ounces are in a gram?

One gram equals approximately 0.03527 ounces (1 ÷ 28.3495). So 100 grams = 3.527 oz, and 1000 grams = 35.274 oz.

How do I convert grams to ounces?

Divide the number of grams by 28.3495. For example, 250 g ÷ 28.3495 = 8.818 oz. The calculator does this automatically as you type.

How many grams are in an ounce?

One avoirdupois ounce equals exactly 28.349523125 grams. So 2 oz = 56.699 g, and 16 oz (one pound) = 453.592 g.

What is the difference between a regular ounce and a troy ounce?

A regular (avoirdupois) ounce equals 28.3495 g and is used for everyday goods and food. A troy ounce equals 31.1035 g and is used for precious metals like gold and silver. This calculator uses the avoirdupois ounce.

Is this calculator free?

Yes, completely free with no registration required.