1 Ounce equals 28.3495 Grams.
| Ounce (oz) | Gram (g) |
|---|---|
| 0.001 oz | 0.0283495 g |
| 0.01 oz | 0.283495 g |
| 0.1 oz | 2.83495 g |
| 1 oz | 28.3495 g |
| 2 oz | 56.699 g |
| 5 oz | 141.748 g |
| 10 oz | 283.495 g |
| 25 oz | 708.738 g |
| 50 oz | 1,417.48 g |
| 100 oz | 2,834.95 g |
| 500 oz | 14,174.8 g |
| 1,000 oz | 28,349.5 g |
To convert Ounces to Grams, multiply the value by 28.3495. This factor comes from the ratio of the two units' definitions: one Ounce equals 28.3495 Grams.
For example: 1 Ounce = 28.3495 Grams, and 10 Ounces = 283.495 Grams.
To convert in the reverse direction — from Grams to Ounces — multiply by 0.035274.
The ounce (oz) used in everyday weighing is the avoirdupois ounce, equal to 1/16 of a pound or approximately 28.35 grams. The word comes from the Latin "uncia" (one-twelfth), though the avoirdupois ounce is one-sixteenth of a pound rather than one-twelfth. It is one of the smallest commonly used units in the US customary system and appears constantly in food packaging, cooking recipes, and retail product descriptions in the United States.
A standard postage stamp weighs about 0.03 ounces; a slice of bread weighs roughly 1 ounce; and a typical can of soda is 12 fluid ounces (which, confusingly, measures volume rather than mass). The ounce is the standard unit for precious metal trading — when you hear about "gold at $2,000 per ounce," that refers to the troy ounce (31.1 g), which is slightly heavier than the avoirdupois ounce (28.35 g).
In cooking, the ounce bridges the gap between the pound and fine measurements. A typical recipe calls for ounces of cheese, chocolate, or liquid, while larger quantities are expressed in pounds. US nutritional labels express serving sizes in ounces for solid foods. Outside the United States, the ounce is rarely used in everyday commerce, though it persists in British pub measures (a pint = 20 imperial fluid ounces) and some Commonwealth cooking traditions.
The gram is one thousandth of a kilogram and the standard unit for everyday small masses in the metric world. A paperclip weighs about 1 gram; a standard die (for board games) weighs about 4 grams; a US quarter coin weighs exactly 5.67 grams; and a teaspoon of sugar is about 4 grams. The gram is familiar from food packaging worldwide, where ingredient quantities and serving sizes are listed in grams.
The gram was originally defined in 1795 as the mass of one cubic centimeter of water at 4°C (the temperature at which water reaches its maximum density). This elegant link between mass and volume meant that a liter of water weighed exactly one kilogram, and a milliliter weighed exactly one gram — relationships still useful for quick mental calculations in cooking and chemistry.
In gemology, the gram stands alongside the carat (0.2 grams) for weighing precious stones and the troy ounce (31.1 grams) for precious metals. In chemistry and pharmacology, the gram is the standard for expressing concentrations (grams per liter, g/L) and reaction quantities. Nutritionists work almost entirely in grams when discussing carbohydrates, fats, proteins, and fiber — making the gram perhaps the most broadly encountered scientific unit in everyday consumer life.
1 Ounce equals 28.3495 Grams.
To convert Ounces to Grams, multiply by 28.3495. For example, 1 Ounce = 28.3495 Grams.
1 Gram equals 0.035274 Ounces.