Skip to content

Ounces to Grams Converter

Convert ounces to grams and grams to ounces instantly. Bidirectional weight converter with formula and common values.

oz

Grams

240.9707

g

8.5 oz = 240.9707 g

g = oz × 28.3495

Ounces to Grams: 1 oz equals 28.3495 g. To convert ounces to grams, multiply by 28.3495 (g = oz × 28.3495). For example, 10 oz = 283.495 g.

How to Convert Ounces to Grams

To convert from ounces to grams, multiply the value by 28.3495. The conversion is linear, meaning doubling the input doubles the output.

Conversion Formula

  • Ounces to Grams: g = oz × 28.3495
  • Grams to Ounces: oz = g ÷ 28.3495

Ounces to Grams Conversion Chart

Ounces (oz)Grams (g)
0.12.83495
0.257.087375
0.514.17475
128.3495
256.699
385.0485
5141.7475
10283.495
20566.99
25708.7375
501417.475
1002834.95
2507087.375
100028349.5

Understanding the Units

What is an Ounce?

The avoirdupois ounce equals exactly 28.349523125 grams, or 1/16 of a pound.

Common contexts: cooking (US), postage, precious metals.

What is a Gram?

A gram is one thousandth of a kilogram (1 g = 0.001 kg).

From the Greek gramma, a small weight in Late Antiquity.

Common contexts: cooking, pharmacy, lab work.

Real-World Reference Points

Item Ounces (oz) Grams (g)
A slice of bread128.3495
A AA battery0.8524.0971

Related

Pounds to Kilograms Converter

Convert pounds to kilograms and kilograms to pounds with precise conversion factor.

Ounces to Grams Converter

Convert ounces to grams and grams to ounces instantly.

Stones to Kilograms Converter

Convert stones to kilograms and kilograms to stones. Common in UK weight measurement.

Tons to Metric Tons Converter

Convert US short tons to metric tonnes and metric tonnes to short tons.

Grams to Ounces Converter

Convert grams to ounces and ounces to grams instantly.

Kilograms to Pounds Converter

Convert kilograms to pounds and pounds to kilograms instantly.

FAQ

How many grams in an ounce?

One avoirdupois ounce equals approximately 28.3495 grams.

How do I convert ounces to grams?

Multiply the ounce value by 28.3495. For example, 8.5 oz = 8.5 × 28.3495 = 240.97 g.

Is a troy ounce different from a regular ounce?

Yes. A troy ounce (used for precious metals) weighs 31.1035 g, while a regular avoirdupois ounce weighs 28.3495 g. This converter uses avoirdupois ounces.

When is this conversion most useful?

Very common in cooking (converting US recipes to metric), nutrition labeling, and postal weight calculations.

How many grams are in 1 ounc?

1 oz equals 28.3495 g.

How do you convert ounces to grams?

Multiply the ounc value by 28.3495. Formula: g = oz × 28.3495.

How many grams are in 5 ounces?

5 oz = 141.7475 g.

How do you convert grams back to ounces?

Use the inverse formula: oz = g ÷ 28.3495. For example, 1 g = 0.035274 oz.

What is the difference between Ounc and Gram?

The avoirdupois ounce equals exactly 28.349523125 grams, or 1/16 of a pound. A gram is one thousandth of a kilogram (1 g = 0.001 kg).