How many grams are in one ounce?

One ounce equals 28.349523 g. The formula is g = oz × 28.349523.

How do I convert ounces to grams?

Multiply the value in ounces by 28.349523. For example, 100 × 28.349523 = 2,834.952313 — so 100 oz = 2,834.952313 g.

Pair · linear · factor 28.349523

ounces to grams

ozg

Active unit

ounces · ≈ 2.83 kg (base)

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ozounce100

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Frequently asked questions

A glowing emerald beam balance: the kilogram prototype cylinder under a glass bell jar on one pan, old weights scattering into stars on the other, against a cosmic nebula in violet and magenta

Mass

Not all pounds are equal — how we weighed the world

Three different pounds in one kingdom, a Warsaw pound and a Prussian one, a probe burned up over Mars, a jetliner out of fuel over Canada — and a platinum cylinder near Paris that kept losing weight for a century, even though by definition it weighed exactly one kilogram. This is the history of mass units and its expensive mistakes.

12 min