⚖️ Ounces to Grams Converter
Convert ounces to grams instantly, both directions.
About this tool
Converts ounces to grams using the exact factor 1 ounce = 28.349523125 grams.
Useful for cooking and baking recipes, postage weights, and small-item shipping specs.
Worked example
An 8 oz cup of flour is about 226.8 g, and a 500 g bag of pasta is about 17.6 oz.
How to use it
- Enter a value in ounces.
- The gram equivalent appears instantly.
- Swap direction to convert grams back to ounces.
Tips
- This is the ounce for weight (avoirdupois), not fluid ounces for volume — they measure different things despite the shared name.
- A quick baking estimate: 1 oz ≈ 28 g, close enough for most recipes.
- For fluid ounces (a volume, not weight), use the Volume Converter instead.
FAQ
Is this the same as a fluid ounce?
No — this converts the weight ounce (avoirdupois) to grams. Fluid ounces measure volume and need a different conversion.
How many grams is 1 oz exactly?
Exactly 28.349523125 grams, though 28.35 g is a practical rounding most recipes use.
Why do US recipes use ounces and cups instead of grams?
It's a matter of longstanding kitchen convention in the US — grams and milliliters are more common in most other countries' recipes, and are generally more precise for baking.
From the blog: getting the most out of this tool
Baking is the number-one reason people land on this exact page — recipe weight in grams, kitchen scale in ounces, or vice versa — so we made sure the result updates instantly as you type rather than requiring a click.
If a recipe instead lists a fluid ounce (a volume measurement, like for milk or oil), that's a different unit entirely — check our Volume Converter for that case.