Convert Ounces to Grams

Convert ounces to grams free and instantly. 1 ounce = 28.3495 g. Exact formula, worked example and a handy reference table.

Instant, in your browser — nothing is uploaded. Last updated: June 1, 2026
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1 ounce = 28.3495 grams

To convert ounces to grams, multiply by 28.3495 (1 ounce = 28.3495 grams). For example, 10 ounces = 283.495 grams.

Why convert ounces to grams?

Both ounces and grams measure weight, so converting between them is a simple multiplication: one ounce equals 28.3495 grams. Type any value into the converter above for an instant answer, or use the formula and reference table below.

Ounces to grams formula

Grams = ounces × 28.3495

Worked example: 10 ounces = 283.495 grams.

Ounces to grams conversion table

Ounces (oz)Grams (g)
128.3495
256.699
385.0485
5141.7475
10283.495
20566.99
501,417.475
1002,834.95

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Ounces to Grams — frequently asked questions

How many grams are in a ounce?

One ounce equals 28.3495 grams. To convert any amount, multiply the number of ounces by 28.3495.

How do you convert ounces to grams?

Multiply by 28.3495: Grams = ounces × 28.3495. For example, 10 ounces = 283.495 grams.

How do I convert grams back to ounces?

Do the reverse conversion — see our grams-to-ounces converter for the formula and an instant calculator.

Is this ounces-to-grams converter free?

Yes — it's completely free, instant and runs in your browser with no sign-up. Nothing you type is uploaded.

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