Instant Ounces to Grams Converter
Enter a value in ounces (oz), choose your precision, and click convert.
How to convert oz to grams
The conversion from ounces to grams is simple: 1 ounce = 28.349523125 grams. To convert any ounce value, multiply it by 28.349523125.
Formula:
grams = ounces × 28.349523125
If you are cooking, tracking nutrition, mailing packages, or measuring ingredients in a science experiment, this oz to g conversion helps you quickly switch to metric units.
Common ounces to grams conversions
| Ounces (oz) | Grams (g) |
|---|---|
| 0.5 oz | 14.17 g |
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 4 oz | 113.40 g |
| 8 oz | 226.80 g |
| 10 oz | 283.50 g |
| 12 oz | 340.19 g |
| 16 oz | 453.59 g |
| 32 oz | 907.18 g |
When this conversion is useful
1) Cooking and baking
Many recipes from the US list ingredient weights in ounces, while kitchen scales in other countries use grams. Converting ounces to grams helps you keep recipes accurate and repeatable.
- Butter, flour, sugar, and chocolate measurements
- Meal prep and portion control
- International recipes and cookbooks
2) Nutrition and fitness tracking
If your food labels or macros app uses grams, you can convert serving sizes from ounces to grams and track calories and protein more precisely.
3) Shipping and ecommerce
Shipping labels might use ounces, while inventory systems may use grams or kilograms. A fast weight converter saves time and reduces errors.
Ounce types: important note
There is also a troy ounce used for precious metals, where 1 troy oz = 31.1034768 g. If you are working with gold, silver, or bullion, use a troy ounce converter instead.
Rounding tips for better accuracy
- Everyday kitchen use: round to 1 or 2 decimals.
- Nutrition labels: usually 1 decimal is enough.
- Scientific or lab work: keep 3+ decimals as needed.
A small rounding difference is usually harmless for cooking, but precision matters in chemistry, supplements, and specialty production.
Quick FAQ
How many grams are in 1 oz?
1 ounce equals 28.349523125 grams.
How many grams are in 8 oz?
8 oz equals 226.80 g (rounded to two decimals).
Is 16 oz the same as 1 pound?
Yes. 16 oz equals 1 lb, and that is approximately 453.59 grams.
Can I use this as a cooking weight converter?
Absolutely. This tool is ideal for recipe conversion, especially when switching between US customary and metric measurements.