1 ounce = 28.35 grams. This applies to all standard (avoirdupois) ounces used in cooking, food packaging, and everyday measurements. For precious metals, 1 troy ounce = 31.1 grams — but in the kitchen, always use 28.35g.
Whether you are scaling a recipe, reading a nutrition label, or converting between US and metric measurements, knowing exactly how many grams are in an ounce is one of the most fundamental kitchen conversions you can master. This guide gives you every conversion you need — fast, accurate, and scannable.
Ounces to Grams — Complete Conversion Table
| Ounces (oz) | Grams (g) | Pounds (lb) |
|---|---|---|
| 1/8 oz | 3.5g | 0.008 lb |
| 1/4 oz | 7.1g | 0.016 lb |
| 1/2 oz | 14.2g | 0.031 lb |
| 3/4 oz | 21.3g | 0.047 lb |
| 1 oz | 28.35g | 0.063 lb |
| 2 oz | 56.7g | 0.125 lb |
| 3 oz | 85.0g | 0.188 lb |
| 4 oz | 113.4g | 0.25 lb |
| 5 oz | 141.7g | 0.313 lb |
| 6 oz | 170.1g | 0.375 lb |
| 8 oz | 226.8g | 0.5 lb |
| 10 oz | 283.5g | 0.625 lb |
| 12 oz | 340.2g | 0.75 lb |
| 16 oz | 453.6g | 1 lb |
| 32 oz | 907.2g | 2 lb |
Grams to Ounces — Reverse Conversion Table
Converting from grams back to ounces? Use this quick reverse chart — essential when working with European or Australian recipes that list weights in grams.
| Grams (g) | Ounces (oz) |
|---|---|
| 10g | 0.35 oz |
| 25g | 0.88 oz |
| 50g | 1.76 oz |
| 100g | 3.53 oz |
| 150g | 5.29 oz |
| 200g | 7.05 oz |
| 250g | 8.82 oz |
| 300g | 10.58 oz |
| 400g | 14.11 oz |
| 500g | 17.64 oz |
| 1000g (1kg) | 35.27 oz |
Ounces to Grams — Common Baking Ingredients
These are the most frequently searched ingredient-specific ounce conversions for baking and cooking. Bookmark this table — you will use it constantly.
| Ingredient | 1 oz | 2 oz | 4 oz | 8 oz |
|---|---|---|---|---|
| All-purpose flour | 28.35g | 56.7g | 113.4g | 226.8g |
| Granulated sugar | 28.35g | 56.7g | 113.4g | 226.8g |
| Butter | 28.35g | 56.7g | 113.4g | 226.8g |
| Honey | 28.35g | 56.7g | 113.4g | 226.8g |
| Chocolate chips | 28.35g | 56.7g | 113.4g | 226.8g |
| Cocoa powder | 28.35g | 56.7g | 113.4g | 226.8g |
Important note: For standard kitchen ingredients, 1 oz always equals 28.35g regardless of the ingredient. The weight-to-volume (cups) varies per ingredient, but the weight-to-weight conversion (oz to grams) never changes. See our cups to grams chart if you need volume-based conversions.
The Simple Formula — How to Convert Any Ounces to Grams
You do not need a chart for every calculation. Use this single formula for any conversion:
Grams = Ounces × 28.35
Example: 3.5 oz × 28.35 = 99.2g
Example: 6 oz × 28.35 = 170.1g
To reverse it (grams to ounces): Ounces = Grams ÷ 28.35
Example: 250g ÷ 28.35 = 8.82 oz
How to Correctly Weigh Ingredients in Grams
- Always use a digital kitchen scale — mechanical scales can be off by 5-10g which ruins precise baking recipes. A good digital scale costs under $15 and is the single best kitchen investment for accurate baking.
- Press “Tare” or “Zero” before each ingredient — this resets the scale to zero after placing your bowl, so you only measure what you add, not the bowl weight.
- Add ingredients one at a time into the same bowl — tare between each one to avoid cumulative errors and reduce washing up.
- Never convert dry ounces using a liquid measuring cup — liquid cups measure volume, not weight. For oz to grams, always use a scale or the conversion table above.
Frequently Asked Questions
How many grams is 1 oz?
1 ounce = 28.35 grams — this is the standard avoirdupois ounce used in all cooking, food packaging, and everyday US measurements. The troy ounce (used only for precious metals) is slightly heavier at 31.1 grams.
How many grams is 2 oz?
2 ounces = 56.7 grams. Simply multiply any ounce amount by 28.35 to get the exact gram equivalent — or use the full conversion table above for instant reference.
Is 100 grams equal to 4 oz?
Not exactly. 100 grams = 3.53 oz, and 4 oz = 113.4 grams. Many people round 100g to “about 3.5 oz” for quick estimates, but for precise baking always use the exact conversion of 28.35g per ounce.
📌 Summary — Grams in an Ounce
• 1 oz = 28.35g
• 2 oz = 56.7g
• 4 oz = 113.4g
• 8 oz = 226.8g
• 16 oz = 453.6g
• Formula: oz × 28.35 = grams
Related: Cups to grams · Ounces in a cup · Oz to cups
