Convert ounces to grams
Please provide values below to convert oz to g, or vice versa.
Convert ounces to grams
The ounces to grams converter helps you quickly convert weight values from ounces (oz) to grams (g). This conversion is useful when reading food labels, following recipes, comparing product weights, checking nutrition information, measuring small packages, or converting imperial weight values into metric units.
Ounces are commonly used in the United States and some other markets for food portions, packaged goods, cooking measurements, and small retail products. Grams are part of the metric system and are widely used around the world for precise weight measurement. Converting ounces to grams makes it easier to understand and compare weights across different measurement systems.
What Is an Ounce?
An ounce (symbol: oz) is a unit of weight used in the imperial and US customary systems. In everyday use, ounces are commonly used for food packaging, snacks, cooking ingredients, postal items, and small household products. One ounce is equal to approximately 28.3495 grams.
What Is a Gram?
A gram (symbol: g) is a metric unit of mass equal to one-thousandth of a kilogram. Grams are commonly used for ingredients, nutrition labels, jewelry, small parcels, product specifications, and precise measurements in cooking, science, and retail packaging.
When You May Need to Convert ounces to grams
- Following recipes that use ounces but measuring with a gram scale
- Reading nutrition labels or food packaging from another country
- Comparing product weights in online shopping listings
- Checking small parcel or mailing weights
- Measuring coffee, spices, protein powder, or baking ingredients
- Converting US customary weight values into metric units
ounces to grams Formula
1 oz = 28.3495 g
grams = ounces × 28.3495
To convert ounces to grams, multiply the number of ounces by 28.3495.
Example: Convert 8 ounces to grams:
8 × 28.3495 = 226.796 g
Common ounces to grams Conversion Table
| Ounce [oz] | Gram [g] |
|---|---|
| 0.5 oz | 14.1748 g |
| 1 oz | 28.3495 g |
| 2 oz | 56.699 g |
| 4 oz | 113.398 g |
| 8 oz | 226.796 g |
| 16 oz | 453.592 g |
Why Convert ounces to grams?
Converting ounces to grams is helpful when a weight value is listed in imperial units but you need a metric measurement. This often happens with American recipes, imported food products, online shopping listings, nutrition labels, and shipping information.
For example, an 8-ounce package is approximately 226.8 grams. This makes it easier to compare product size, measure ingredients accurately, or understand serving amounts when you are used to metric measurements.
Common Real-World Uses
The ounces to grams conversion is frequently used in cooking, baking, nutrition tracking, grocery shopping, coffee brewing, supplement measurement, mailing, and small product packaging. Many US-based recipes and products use ounces, while most metric-based countries use grams.
In baking and food preparation, grams are often preferred because they allow more precise measurement than volume-based tools. If a recipe lists ounces but your kitchen scale uses grams, this conversion helps you measure the ingredient more accurately.
Important Note About Weight Ounces and Fluid Ounces
This page converts ounces as a unit of weight, not fluid ounces. A weight ounce measures mass, while a fluid ounce measures volume. They are not interchangeable unless you also know the density of the ingredient or liquid being measured.
For example, 8 ounces by weight is not always the same as 8 fluid ounces by volume. When converting food, drinks, or ingredients, always check whether the source uses ounces (oz) or fluid ounces (fl oz).
Quick Weight Reference
- 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
- 16 oz ≈ 453.59 g
Related Weight Conversion Pages
Frequently Asked Questions
How many grams are in 1 ounce?
1 ounce is equal to approximately 28.3495 grams.
What is the formula for converting ounces to grams?
Multiply the number of ounces by 28.3495 to get the value in grams.
What is 8 ounces in grams?
8 ounces is equal to approximately 226.796 grams.
Is an ounce the same as a fluid ounce?
No. An ounce measures weight, while a fluid ounce measures volume. This page converts weight ounces to grams.
Why are grams useful for cooking and baking?
Grams provide precise metric measurements, which can be especially helpful for baking, nutrition tracking, coffee brewing, and ingredient portioning.
Are ounces to grams conversions exact?
The conversion is based on a standard defined relationship. Displayed results may be rounded depending on the number of decimal places shown.