Grams to Ounces — Weight Conversion Formula & Chart
Convert grams to ounces with the exact formula, a reference chart, and real-world examples. 1 gram = 0.03527 oz. Covers cooking, postal, and jewelry weights.
Grams to ounces is a daily conversion for cooks, bakers, jewelers, postal workers, and anyone shipping internationally. The relationship is simple once you know the key number. The CalcHub Weight Converter converts any weight instantly.
The Formula
Ounces = Grams / 28.3495Or equivalently: Ounces = Grams x 0.03527
One ounce (avoirdupois) = exactly 28.3495 grams.
Worked Example 1 — Baking
A recipe calls for 200 grams of flour. In ounces: 200 / 28.3495 = 7.05 oz, or just over 7 ounces.
Worked Example 2 — Postal
A letter weighs 42 grams. In ounces: 42 / 28.3495 = 1.48 oz. The USPS first-class limit is 1 oz for a standard stamp, so this letter needs additional postage.
Grams to Ounces Conversion Chart
| Grams | Ounces | Grams | Ounces |
|---|---|---|---|
| 5 | 0.18 | 200 | 7.05 |
| 10 | 0.35 | 225 | 7.94 |
| 15 | 0.53 | 250 | 8.82 |
| 20 | 0.71 | 300 | 10.58 |
| 25 | 0.88 | 350 | 12.35 |
| 30 | 1.06 | 400 | 14.11 |
| 50 | 1.76 | 450 | 15.87 |
| 75 | 2.65 | 500 | 17.64 |
| 100 | 3.53 | 750 | 26.46 |
| 125 | 4.41 | 1000 | 35.27 |
| 150 | 5.29 | — | — |
Common Baking Conversions
| Ingredient | 1 Cup (approx.) | Grams | Ounces |
|---|---|---|---|
| All-purpose flour | 1 cup | 125 g | 4.4 oz |
| Granulated sugar | 1 cup | 200 g | 7.1 oz |
| Brown sugar (packed) | 1 cup | 220 g | 7.8 oz |
| Butter | 1 cup (2 sticks) | 227 g | 8.0 oz |
| Cocoa powder | 1 cup | 85 g | 3.0 oz |
| Chocolate chips | 1 cup | 170 g | 6.0 oz |
| Honey | 1 cup | 340 g | 12.0 oz |
| Oats (rolled) | 1 cup | 90 g | 3.2 oz |
Practical Use Cases
Cooking and baking: Professional bakers weigh ingredients in grams for accuracy. If your recipe is in grams but your kitchen scale only shows ounces, divide by 28.35. A 500g block of cheese is 17.6 oz — just over 1 pound. Jewelry and precious metals: Gold and silver use troy ounces (31.1035 grams), not standard ounces. A 14-gram gold chain weighs 0.45 troy ounces — this distinction matters when calculating melt value. Shipping: International shipments list weight in grams or kilograms, but USPS and other US carriers use ounces and pounds. A 350g package = 12.35 oz = 0.77 lbs.What is the difference between an ounce and a troy ounce?
A standard (avoirdupois) ounce is 28.3495 grams. A troy ounce is 31.1035 grams — about 10% heavier. Troy ounces are used exclusively for precious metals. When gold is quoted at "$2,000 per ounce," that means per troy ounce.
How many grams in a pound?
One pound = 16 ounces = 453.592 grams. So 500 grams is slightly more than a pound (1.102 lbs).
What is the quick mental math for grams to ounces?
Divide by 30 for a rough estimate. Example: 150 grams / 30 = 5 oz. Exact: 5.29 oz. The error is about 5.5%, which is fine for cooking estimates.
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