Convert Ounces to Grams
Instantly convert Ounces (oz) to Grams (g) with our free online calculator.
Formula: oz to g — multiply by 28.3495
Reference Table
| Ounces (oz) | Grams (g) |
|---|---|
| 1 | 28.3495 |
| 5 | 141.748 |
| 10 | 283.495 |
| 25 | 708.738 |
| 50 | 1417.48 |
| 100 | 2834.95 |
Ounces-to-grams conversion is essential in cooking (when following European or Asian recipes), jewelry pricing (precious metals are priced per gram internationally but quoted in ounces on commodity exchanges), and pharmaceutical dosing. 1 avoirdupois ounce = 28.3495 g; 1 troy ounce (precious metals) = 31.1035 g — a 10% difference that matters when converting gold-spot prices. Food nutrition labels in the US show both ounces and grams, making conversion habitual for home cooks translating international recipes.
How to Convert Ounces to Grams
Formula
To convert Ounces (oz) to Grams (g): multiply by 28.3495
Step-by-Step
- Start with your value in Ounces (oz).
- Multiply by 28.3495 to perform the conversion.
- The result is your value expressed in Grams (g).
Conversion Factor
1 oz = 28.3495 g
Reverse Factor
1 g = 0.035274 oz
Worked Example
Convert 25 Ounces to Grams: 25 oz = 708.738 g
About Ounce (oz)
An imperial unit of mass equal to 1/16 of a pound (approximately 28.35 grams). Ounces are the everyday small-mass unit in the US for food portions, boxing-glove weights, ingredient measurements in American cookbooks, and postal rates for small packages. The avoirdupois ounce used here is distinct from the troy ounce (~31.1 g) used exclusively for precious metals — a common source of confusion when comparing gold or silver quotes to grocery scales.
About Gram (g)
A metric unit of mass equal to one thousandth of a kilogram (0.001 kg). Grams are the everyday unit for cooking, nutrition labels, precious metals, pharmaceutical dosing, and chemistry. A US nickel weighs 5 grams; a standard paperclip about 1 gram. In international trade and laboratory work the gram provides a conveniently human scale between the milligram and the kilogram, which is why nutritional information worldwide is quoted per 100 grams.
Quick Facts
- 1 Ounce equals 28.3495 Grams
- 1 Gram equals 0.035274 Ounces
- Ounce is a unit of weight & mass
- Gram is a unit of weight & mass
- This conversion is commonly used in cooking, shipping, fitness, and scientific research
- The Ounce belongs to the imperial system
- The Gram belongs to the metric system
Common Ounce to Gram Conversions
| Ounces (oz) | Grams (g) |
|---|---|
| 0.01 | 0.283495 |
| 0.1 | 2.83495 |
| 0.25 | 7.08738 |
| 0.5 | 14.1748 |
| 1 | 28.3495 |
| 2 | 56.699 |
| 3 | 85.0486 |
| 5 | 141.748 |
| 10 | 283.495 |
| 15 | 425.243 |
| 20 | 566.99 |
| 25 | 708.738 |
| 50 | 1417.48 |
| 75 | 2126.21 |
| 100 | 2834.95 |
| 250 | 7087.38 |
| 500 | 14174.8 |
| 1000 | 28349.5 |
| 5000 | 141748 |
| 10000 | 283495 |
Understanding Ounces
The Ounce (symbol: oz) is a unit of weight & mass. An imperial unit of mass equal to 1/16 of a pound (approximately 28.35 grams). Ounces are the everyday small-mass unit in the US for food portions, boxing-glove weights, ingredient measurements in American cookbooks, and postal rates for small packages. The avoirdupois ounce used here is distinct from the troy ounce (~31.1 g) used exclusively for precious metals — a common source of confusion when comparing gold or silver quotes to grocery scales.
It belongs to the imperial measurement system.
Ounces are commonly used in cooking, shipping, fitness, and scientific research.
Understanding Grams
The Gram (symbol: g) is a unit of weight & mass. A metric unit of mass equal to one thousandth of a kilogram (0.001 kg). Grams are the everyday unit for cooking, nutrition labels, precious metals, pharmaceutical dosing, and chemistry. A US nickel weighs 5 grams; a standard paperclip about 1 gram. In international trade and laboratory work the gram provides a conveniently human scale between the milligram and the kilogram, which is why nutritional information worldwide is quoted per 100 grams.
It belongs to the metric measurement system.
Grams are commonly used in cooking, shipping, fitness, and scientific research.
Why Convert Ounces to Grams?
Converting between Ounces and Grams comes up in many real-world situations. Cooks adapting international recipes, shippers calculating freight costs, and fitness enthusiasts tracking body composition all need reliable weight conversions. Scientific laboratories frequently work across measurement systems when referencing global research, making quick and accurate conversion indispensable.
Frequently Asked Questions
How do I convert Ounces to Grams?
An imperial unit of mass equal to 1/16 of a pound (approximately 28. To convert Ounces to Grams, multiply by 28.3495. For example, 25 oz equals 708.738 g.
How many Grams are in 1 Ounce?
There are 28.3495 Grams in 1 Ounce.
How many Ounces are in 1 Gram?
There are 0.035274 Ounces in 1 Gram.
What is the formula for Ounce to Gram conversion?
The formula is: multiply by 28.3495. This means 1 oz = 28.3495 g.
Is a Ounce bigger than a Gram?
No. One Ounce is smaller than one Gram because 1 oz equals 28.3495 g, which is greater than 1.
When do you need to convert between Ounces and Grams?
A metric unit of mass equal to one thousandth of a kilogram (0. Ounce and Gram are both weight units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.