If you need to convert ounces to grams, you’re in the right place!
Here’s the simple answer:
1 ounce = 28.3495 grams.
Or you can use the tool below to convert:
Convert Ounces to Grams
Whenever you’re cooking, baking, mailing packages, or weighing anything across different systems, knowing how to switch between ounces and grams can make life much easier.
Let’s break it all down in a quick and easy way.
What Are Ounces and Grams?
- Ounces (oz) are a unit of weight from the imperial system, mostly used in the United States.
- Grams (g) are a weight unit in the metric system, common around the world.
Since these two systems are different, converting between ounces and grams is necessary when working with recipes, travel limits, product weights, and more.
How to Convert Ounces to Grams
The formula to convert ounces to grams is simple:
Grams = Ounces × 28.3495
For example:
- 1 ounce × 28.3495 = 28.3495 grams
- 5 ounces × 28.3495 = 141.7475 grams
- 10 ounces × 28.3495 = 283.495 grams
It’s really that straightforward!
Quick Ounces to Grams Conversion Chart
Here’s a quick chart for reference:
| Ounces | Grams |
|---|---|
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 3 oz | 85.05 g |
| 4 oz | 113.40 g |
| 8 oz | 226.80 g |
| 16 oz | 453.59 g |
This table is super helpful when you need to convert quickly without doing the math every time!
Why You Might Need to Convert Ounces to Grams
- Cooking and Baking: European and Australian recipes usually list ingredients in grams, while American recipes use ounces.
- Travel and Shipping: Airline baggage limits and shipping documents sometimes list weight in grams even if you packed in ounces.
- Buying Products: Many imported goods, especially food, jewelry, and health products, come labeled in grams.
- Science and Education: Scientific measurements use grams almost exclusively, so you’ll often need to convert.
Knowing that 1 ounce equals about 28 grams helps you move easily between systems without stress.
How to Estimate Ounces to Grams Without a Calculator
If you need a quick estimate, just remember:
- 1 ounce ≈ 28 grams
It’s not exact (it’s really 28.3495), but it’s close enough for most everyday needs like shopping, cooking, and casual weighing.
Example:
- 3 oz ≈ 84 grams
- 7 oz ≈ 196 grams
Close enough unless you’re baking a very precise cake!
Tips for Accurate Ounces to Grams Conversion
- Always check if you are converting dry ounces (weight) or fluid ounces (volume). They are not the same!
- Use a digital kitchen scale that can switch between ounces and grams at the push of a button for exact measurements.
- For precious metals, always convert precisely — even small errors can cost money when dealing with gold, silver, or platinum.
Related Conversions
You might also need these conversions:
- Grams to Ounces: Grams ÷ 28.3495
- Ounces to Pounds: 1 pound = 16 ounces
- Grams to Kilograms: 1 kilogram = 1000 grams
- Ounces to Kilograms: Ounces × 0.0283495
Being familiar with these basic conversions can help you feel more confident when reading labels, recipes, or instructions from other countries.
Common Mistakes When Converting Ounces to Grams
- Mixing Fluid Ounces and Dry Ounces: Fluid ounces measure volume, not weight. Only dry ounces relate to grams.
- Wrong rounding: Rounding too early can affect sensitive results, especially when baking or dealing with expensive items.
- Assuming all ounces weigh the same: Volume-based ounces (like for milk or oil) don’t weigh the same as ounces of solids.
Always double-check whether you’re working with weight or volume!
FAQs About Ounces to Grams
How many grams are in 1 ounce?
There are 28.3495 grams in 1 ounce.
Is 1 ounce 30 grams?
Not exactly. 1 ounce is about 28.35 grams, not 30 grams.
How many grams are in 8 ounces?
8 ounces × 28.3495 = 226.796 grams. You can round it to 226.8 grams for most uses.
How much is half an ounce in grams?
Half an ounce is about 14.17 grams (0.5 × 28.3495).
What’s the fastest way to convert ounces to grams?
Multiply the number of ounces by 28 if you need a quick mental calculation. For example, 5 ounces would be about 140 grams. (Real value: 141.75 grams.)
What items weigh around 1 ounce?
A slice of bread, a pencil, or a CD without its case all weigh about 1 ounce.