Conversor de Gramas para Onças

Converte g em oz (1 oz = 28,3495 g).
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

Onças
3,5274

Formula

1 oz = 28,3495 g

About this calculator

The Grams to Ounces Converter is an online tool that transforms mass values between grams (g) and ounces (oz). The ounce is an imperial unit of measurement used mainly in the United States and the United Kingdom for food, liquids, and everyday objects. In Brazil, grams are standard, but foreign recipes and imported products often use ounces. This calculator uses the standard conversion of 1 ounce = 28.3495 grams, ensuring precision for culinary, scientific, or commercial use.

How it works: you enter a value in grams or ounces, and the tool automatically calculates the equivalent in the other unit. The formula applied is: ounces = grams / 28.3495 and grams = ounces * 28.3495. The result is displayed with up to two decimal places, sufficient for most applications. For more precise conversions, such as in laboratories, it is recommended to use the full constant (28.349523125).

Use this calculator when you need to follow an American recipe, buy ingredients from international websites, measure supplements, or understand labels on imported products. It is also useful for professionals working with imports, international cuisine, or food science. Remember there are variations: the avoirdupois ounce (the most common) and the troy ounce (for precious metals). This tool uses the avoirdupois ounce.

Cautions: do not confuse fluid ounces (volume) with mass ounces. This calculator is for mass only. Additionally, rounding may cause small differences in sensitive recipes. For exact results, use a calibrated scale. The calculator is educational and does not replace professional measuring instruments.

Frequently asked questions

How many grams are in an ounce?

One avoirdupois ounce equals 28.3495 grams. For more precise calculations, use 28.349523125 grams.

Does this calculator work for fluid ounces?

No. Fluid ounces measure volume, not mass. This calculator converts only grams and mass ounces.

Can I use it for precious metals?

For precious metals, use the troy ounce (31.1035 g). This calculator uses the avoirdupois ounce, common for food and objects.

How accurate is the conversion?

The tool rounds to two decimal places, sufficient for recipes and general use. For scientific precision, use the full value.

Why does the result differ from other calculators?

Some calculators use 28.35 g/oz. Our tool uses 28.3495, which is more precise. Differences are minimal.

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