Ounces (oz) Grams (g)
128.3495
256.699
4113.398
8226.796
16453.592

Understanding Ounces and Grams

Ounces (oz) and grams (g) are both units of mass used globally, but in different measurement systems. The ounce is primarily used in the United States as part of the Imperial system, while the gram is the base unit of mass in the metric system, widely adopted internationally.

Conversion Formula

  • To convert ounces to grams: grams = ounces × 28.3495
  • To convert grams to ounces: ounces = grams ÷ 28.3495

When to Use Each

You might see ounces used in US packaging and recipes, while grams are standard for nutrition labeling, international recipes, scientific calculations, and commercial product specifications.

Example Conversions

  • 1 oz = 28.35 g
  • 3 oz = 85.05 g
  • 100 g = 3.527 oz
  • 250 g = 8.818 oz

Tips

For precise baking, chemical experiments, or trade, using a digital scale and accurate conversion is crucial. Always confirm if the ounce in context is a standard (avoirdupois) ounce or another variation like fluid ounce or troy ounce (used in jewelry).

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