About This Ounces to Grams Converter
The ounce (oz) is a US customary and imperial weight unit used for food portions, recipe ingredients, and small package weights. The gram (g) is the metric equivalent, the global standard for precise weight measurement in cooking, science, and commerce. The exact conversion is 1 ounce = 28.3495 grams, making 1 gram = 0.035274 ounces. Note: this converter uses the avoirdupois ounce (the standard for food and general weight), not the troy ounce used for precious metals.
This converter also handles kilograms, pounds, stone, and metric tons. Chefs cooking from American recipes in metric kitchens, baristas weighing coffee doses in grams from oz-labeled bags, home bakers scaling US recipes for metric scales, and international shoppers comparing US food packaging weights all reach for ounces-to-grams conversion regularly.
How to Use This Converter
- Enter the ounce value in the Value field.
- Confirm Ounce is selected in the From dropdown.
- Select Gram in the To dropdown (or any other target unit).
- The result and formula appear instantly below.
- Use Swap to convert grams back to ounces, or Reset to return to the default.
Units Covered
| Unit | Symbol | Common Use |
|---|---|---|
| Ounce | oz | US recipe ingredients, food portion weights, small package shipping |
| Gram | g | Metric recipe ingredients, nutrition labels, precise food weights |
| Kilogram | kg | Bulk food, produce, luggage, and body weight in metric countries |
| Pound | lb | US food packaging, body weight, larger product weights |
| Stone | st | Body weight in UK and Ireland |
| Metric Ton | t | Industrial and bulk commercial weight |
Ounces to Grams Conversion Table
| Ounces [oz] | Grams [g] |
|---|---|
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 4 oz | 113.40 g |
| 6 oz | 170.10 g |
| 8 oz | 226.80 g |
| 10 oz | 283.50 g |
| 12 oz | 340.19 g |
| 14 oz | 396.89 g |
| 16 oz | 453.59 g (1 lb) |
| 24 oz | 680.39 g |
| 32 oz | 907.18 g (2 lb) |
| 48 oz | 1360.78 g |
How to Convert Ounces to Grams
To convert ounces to grams, multiply by 28.3495:
Example: Convert 8 ounces to grams:
To convert grams back to ounces, divide by 28.3495:
Example: Convert 200 grams to ounces:
When You Need to Convert Ounces to Grams
Coffee brewing is a major use case. Specialty coffee recipes specify dose weights in grams — a standard espresso uses 18–20 g of ground coffee. Coffee sold in the US is packaged in ounces: a typical 12 oz bag contains 340 g, and a single dose represents about 5–6% of the bag. Baristas, home espresso enthusiasts, and pour-over brewers using gram-precise scales constantly convert between ounce-labeled bags and gram-targeted brew recipes to maintain consistency.
Cooking and baking recipes mix the two systems depending on the recipe's origin. American recipes typically list ingredients in ounces — 4 oz of cream cheese, 6 oz of chocolate chips. Metric kitchen scales measure in grams. A baker with a gram-only scale needs 4 oz × 28.35 = 113.4 g of cream cheese and 6 oz × 28.35 = 170.1 g of chips to follow the recipe exactly. Professional pastry chefs working with American recipes in European kitchens, or vice versa, deal with this conversion for every ingredient.
International food packaging and nutrition labeling also requires this conversion. Products sold in the US list serving sizes in ounces — a 1 oz serving of crackers, a 2 oz portion of deli meat. European consumers reading the same product's nutrition data need the gram equivalent. Food importers, nutritional researchers comparing US and EU label standards, and international travelers following US-based diet plans all use ounce-to-gram conversion when interpreting food product data across borders.