Ounces to Grams Converter
Precise weight for cooking and measuring.
Ounces to Grams Converter
Convert between any two weight & mass units instantly.
Gram (g)
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What This Calculator Does
The Ounces to Grams Converter translates imperial ounces into metric grams, which is the standard for nutrition labels, jewelry weights, and international recipes. If a recipe calls for 8 oz of flour or a ring is 3 oz of gold, converting to grams gives you precision that scales matter.
How It Works
One ounce (avoirdupois) equals approximately 28.3495 grams. Multiply the ounce value by this factor. For precious metals, troy ounces are slightly heavier at 31.1035 grams per troy ounce.
Example
A 6-ounce steak is 170 grams. A standard stick of butter (4 oz) is 113 grams. A 1-ounce gold coin is 28.35 grams avoirdupois or 31.1 grams troy.
Formula
grams = ounces x 28.34951 oz (avoirdupois) = 28.3495 g.
Reading the Results
Weight in Grams
Your weight expressed in grams using the standard avoirdupois conversion factor.
Frequently Asked Questions
How many grams is 1 ounce?
One avoirdupois ounce equals 28.35 grams. A troy ounce (used for gold and silver) is 31.1 grams.
How many grams in 8 ounces?
8 ounces equals 226.8 grams, roughly a standard measuring cup of flour.
What is the difference between avoirdupois and troy ounces?
Avoirdupois ounces measure everyday items (28.35 g). Troy ounces measure precious metals (31.1 g). They are not interchangeable.