Ounce to Gram Converter
Enter the value that you want to convert ounce (oz) to gram (g) or gram to ounce.Also written as OZ to G conversion.
1 ounce = 28.3495231 gram
Formula: gram = ounce value × 28.3495231
OZ to G — ounce to gram
10 ounce = 283.49523 gram
Popular Weight Converters:
Converting Ounce to Gram
The Ounce Explained
Ounce (oz) is a unit of weight measurement. 1 ounce is equal to 28.3495231 gram.
Understanding the Gram
Gram (g) is a unit of weight measurement. 1 gram is equal to 0.0352740 ounce.
Understanding Weight Conversions
Weight unit conversions are among the most frequently performed in daily life. International commerce ships in metric tonnes and kilograms, while US domestic logistics uses pounds and ounces. Recipes from different countries use different systems — a European cake recipe in grams versus an American one in cups and ounces. Pharmacists convert between milligrams and grains for medication dosing. Athletes track body weight across metric and imperial systems depending on their country and sport federation requirements.
ounce to gram metric conversion table
| 0.01 oz | = | 0.28350 g |
| 0.1 oz | = | 2.83495 g |
| 1 oz | = | 28.34952 g |
| 2 oz | = | 56.69905 g |
| 3 oz | = | 85.04857 g |
| 4 oz | = | 113.39809 g |
| 5 oz | = | 141.74762 g |
| 6 oz | = | 170.09714 g |
| 7 oz | = | 198.44666 g |
| 8 oz | = | 226.79619 g |
| 9 oz | = | 255.14571 g |
| 10 oz | = | 283.49523 g |
| 11 oz | = | 311.84475 g |
| 12 oz | = | 340.19428 g |
| 13 oz | = | 368.54380 g |
| 14 oz | = | 396.89332 g |
| 15 oz | = | 425.24285 g |
| 16 oz | = | 453.59237 g |
| 17 oz | = | 481.94189 g |
| 18 oz | = | 510.29142 g |
| 19 oz | = | 538.64094 g |
| 20 oz | = | 566.99046 g |
| 30 oz | = | 850.48569 g |
| 40 oz | = | 1133.98093 g |
| 50 oz | = | 1417.47616 g |
| 60 oz | = | 1700.97139 g |
| 70 oz | = | 1984.46662 g |
| 80 oz | = | 2267.96185 g |
| 90 oz | = | 2551.45708 g |
| 100 oz | = | 2834.95231 g |
| 200 oz | = | 5669.90463 g |
| 300 oz | = | 8504.85694 g |
| 400 oz | = | 11339.80925 g |
| 500 oz | = | 14174.76156 g |
| 600 oz | = | 17009.71387 g |
| 700 oz | = | 19844.66619 g |
| 800 oz | = | 22679.61850 g |
| 900 oz | = | 25514.57081 g |
| 1000 oz | = | 28349.52312 g |
How to Convert OZ to G (Ounce to Gram)?
We can convert ounce to gram by using an example.
Example:
Convert 20 Ounce to Gram?
We know 1 Ounce = 28.3495231 gram; 1 Gram = 0.0352740 ounce.
20 ounce = ___g
20 × 28.3495231 = 566.99046 g (we know 1 ounce = 28.3495231 gram)
Answer:
20 ounce = 566.99046 gram
How to Convert Ounces to Grams (Step-by-Step)
Converting ounces to grams is needed when following metric recipes from US sources, calculating food portions for nutrition tracking, and determining postal weights. The conversion factor is 1 oz = 28.3495 g.
- Identify the weight in ounces (oz) to convert.
- Multiply the ounce value by 28.3495 to get grams.
- For cooking, round to the nearest 5 g for practical measuring.
- Double-check: the gram value should be roughly 28× the ounce value.
Common Ounces to Grams Conversions (Recipes & Postal)
Standard US recipe and package weights converted to grams for metric kitchen scales and international shipping.
| Ounce | Gram |
|---|---|
| 0.5 oz | 14.17 g |
| 1 oz | 28.35 g |
| 3 oz | 85.05 g |
| 4 oz | 113.40 g |
| 6 oz | 170.10 g |
| 8 oz | 226.80 g |
| 12 oz | 340.19 g |
| 16 oz | 453.59 g |
Solved Examples: Ounces to Grams
Question 1: A US recipe calls for 6 oz of chocolate chips. How many grams should you weigh on a metric scale?
Solution:
Grams = 6 × 28.3495
= 170.1 g
Answer: 6 oz = 170 g of chocolate chips.
Question 2: A letter weighs 1.5 oz. What is this in grams for international postal rates?
Solution:
Grams = 1.5 × 28.3495
= 42.52 g
Answer: 1.5 oz = 42.5 g — under the 50 g international standard letter limit.
Question 3: You need to eat 4 oz of protein per meal. Express this in grams for your food scale.
Solution:
Grams = 4 × 28.3495
= 113.4 g
Answer: 4 oz = 113 g of protein source per meal.
Question 4: A candle weighs 9.5 oz. What is the shipping weight in grams?
Solution:
Grams = 9.5 × 28.3495
= 269.32 g
Answer: 9.5 oz = 269 g for shipping weight calculation.
Practice Questions: Ounces to Grams
Try solving these on your own to test your understanding:
- Convert 2 oz of butter to grams. (Answer: 56.70 g)
- A steak weighs 10 oz. What is this in grams? (Answer: 283.50 g)
- Convert 7 oz of flour for a metric recipe. (Answer: 198.45 g)
- A bar of soap weighs 3.5 oz. Express in grams. (Answer: 99.22 g)
- Convert 14 oz of tomato sauce to grams. (Answer: 396.89 g)
US Cup Measurements to Grams: Why Ounces Matter
US recipes often say "8 oz" meaning 8 fluid ounces (volume), not 8 weight ounces. For water, they're the same (8 fl oz water = 236.6 g). But for flour, 8 fl oz ≈ 125 g, not 226.8 g. When converting recipes, check whether "oz" means weight (on a scale) or volume (in a measuring cup). Weight ounces to grams conversion only applies when the recipe specifies weight.
Nutrition Labels: Understanding US Serving Sizes in Grams
US nutrition labels list serving sizes in both "oz" and grams (e.g., "1 oz (28g)" for cereal). When tracking macros with a metric scale, use the gram value directly. Common US serving sizes: cheese 1 oz (28 g), meat 3 oz (85 g), cereal 1 oz (28 g), chips 1 oz (28 g). Metric food tracking apps prefer gram inputs since they're more precise than ounce fractions.
Postal Weight Conversion: USPS Ounces to International Grams
USPS charges by the ounce for domestic mail, but international services use grams. Key thresholds: First Class Letter ≤ 1 oz (28 g), Large Envelope ≤ 13 oz (369 g). International: standard letter ≤ 20 g (0.71 oz) gets the cheapest rate. Knowing the ounce-to-gram conversion helps when estimating whether adding inserts will push your mailing into a higher price bracket.
Key Takeaways
- Multiply ounces by 28.3495 to get grams.
- Quick estimate: 1 oz ≈ 28 g (accurate within 1.2%).
- Watch for fluid ounces vs weight ounces in recipes — they're different units.
- 4 oz = 113 g is the standard "quarter pound" in food.
- 16 oz = 1 lb = 453.59 g — a key reference point.
- Metric kitchen scales are more accurate than US cup measurements for baking.
Ounce to Gram Conversion Formula
gram = ounce × 28.3495231
1 ounce = 28.3495231 gram
1 gram = 0.0352740 ounce
Reverse: ounce = gram × 0.0352740
Frequently Asked Questions
How many gram are in 1 ounce?
There are 28.3495231 gram in 1 ounce. To convert ounce to gram, multiply the value by 28.3495231.
How do I convert ounce to gram?
Multiply your ounce value by 28.3495231 to get the equivalent in gram. For example, 5 ounce = 5 × 28.3495231 = 141.74762 gram.
How do I convert gram to ounce?
Multiply your gram value by 0.0352740 to get the equivalent in ounce. Alternatively, divide by 28.3495231.
What is 10 ounce in gram?
10 ounce is equal to 283.49523 gram.
What is 100 ounce in gram?
100 ounce is equal to 2834.95231 gram.