Grams to Ounces Calculator

Free Grams to Ounces Calculator - convert grams to ounces and back instantly using the international avoirdupois ounce factor (1 oz = 28.349523125 g).

919.0K uses Updated · 2026-05-12 Runs locally · zero upload
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How to Use Grams to Ounces Calculator

The Grams to Ounces Calculator converts a weight between grams and ounces in either direction. Type the value, choose the direction, and read the result. The Grams to Ounces Calculator is ideal for kitchen scales, parcel weights, food labels and any everyday weight comparison.

  1. Choose conversion direction - Grams to ounces or ounces to grams.
  2. Enter the value - Decimal values are supported.
  3. Read the result - The Grams to Ounces Calculator shows the converted value and the formula used.

Formula & Theory - Grams to Ounces Calculator

The Grams to Ounces Calculator uses the exact international avoirdupois factor:

ounces = grams × 0.03527396195
grams  = ounces × 28.349523125
SymbolMeaning
gramsWeight in grams (g)
ouncesWeight in ounces (oz, avoirdupois)

Reference values

  • 1 g = 0.03527396195 oz.
  • 1 oz = 28.349523125 g.
  • 100 g ≈ 3.5274 oz.
  • 16 oz = 1 lb (avoirdupois pound).

Assumptions and Limits

The Grams to Ounces Calculator uses the avoirdupois ounce by default, which is the everyday ounce used in food, postage and personal weight in the United States. For precious metals, use the troy ounce (31.1034768 g) instead.

Use Cases for Grams to Ounces Calculator

The Grams to Ounces Calculator helps in many common scenarios:

  • Kitchen scales - Convert recipe weights between metric and US units.
  • Nutrition labels - Switch nutrition data between grams and ounces.
  • Postage and parcels - Translate package weight between systems.
  • Fitness and supplements - Move between grams and ounces for dosing or portion sizes.
  • Crafting and DIY - Quickly check material weights in either unit.

The Grams to Ounces Calculator gives instant, precise conversions so you can stop searching for charts.

Frequently asked questions about Grams to Ounces Calculator

How accurate is the Grams to Ounces Calculator?

The Grams to Ounces Calculator uses the exact international avoirdupois conversion: 1 oz = 28.349523125 g. Results are correct to many decimal places.

Is the ounce here the same as the troy ounce?

No. This Grams to Ounces Calculator uses the avoirdupois ounce, used for food, body weight and parcels. The troy ounce, used for precious metals, equals 31.1034768 g.

How many grams are in 1 oz?

1 oz is exactly 28.349523125 g. 1 g is approximately 0.03527396 oz.

Is my data stored?

No. All calculations happen in your browser; nothing is sent to a server.