Understanding the differences between metric and American standards of measurement is a must-have skill for bakers. To properly measure ingredients, you'll need to know how many grams are in an ounce. The good news is that the conversion from ounces to grams is quite straightforward, but it's important that you understand the differences between the two systems so that you can accurately prepare your recipes.

Jump to:
- What is an Ounce?
- What is a Gram?
- Metric vs Imperial system
- What is the Metric System?
- What is the Imperial System?
- Simple Formula to Convert Ounce to Grams
- How Many Grams in an Ounce and a Half?
- How Many Grams in an Eighth of an Ounce?
- Grams to Ounces Conversion Table
- Ounces to Grams Conversion Table
- How to Measure Dry Weight?
- Cooking Weight Conversion Chart
- People Also Ask [FAQs]
- Wrap Up: How Many Grams In An Ounce
What is an Ounce?
An ounce (oz) also known as "avoirdupois ounce" is a unit of weight used in many parts of the world, most notably in the United States where it is commonly used for measuring food items such as flour or sugar. An ounce is equal to 28.35 grams and 16 drams (1 avoirdupois dram equals 1/16th of an ounce). The average weight of a two-inch rubber bar eraser is 28.35 grams (1 oz).
What is a Gram?
A gram (g) is a metric unit used mainly in scientific contexts but also for cooking and baking. A gram measures the mass unit or weight of an object rather than its volume like teaspoons or tablespoons do. One gram equals 0.0352739619 ounces and 1000 milligrams (mg). The average weight of a raisin is 1 gram (0.04 oz).
Metric vs Imperial system
Although the international measurement system of units (Also known as the metric system) is used by most countries, The United States has its own unique system that is based on the old British Imperial System. This becomes relevant in cooking when trying to follow recipes from other countries which use grams and Celsius rather than our pounds and inches.
What is the Metric System?
- The metric system is an international system of measurement developed by scientists in France in 1790.
- The system uses three basic units—meter, liter, and gram—to measure distance, volume, and mass respectively.
- It's based on powers of 10, so 1 meter is equal to 1,000 millimeters (10^-3 meters), 1 liter is equal to 1,000 milliliters (10^-3 liters), and 1 gram is equal to 1,000 milligrams (10^-3 grams).
- This makes it easy to convert from one unit of measurement to another. For example, if you need to convert from centimeters to meters you simply divide by 100 because there are 100 centimeters in 1 meter (100 cm/1 m = 10^2 cm/1 m).
What is the Imperial System?
- The imperial system is an English system of measurement used mainly in the United States and Canada.
- It's based on older British measurements like inches and feet for length, gallons for volume, and pounds for mass.
- The imperial system does not use powers of 10 like the metric system; instead, it relies on fractions or multiples of 12 (like inches) or 16 (like ounces).
- This makes conversions more complicated than with metric measurements. For example, converting from ounces to pounds requires dividing by 16 instead of multiplying by 1000 like with metric conversions.

Simple Formula to Convert Ounce to Grams
To make things easier for bakers, here's a simple formula to help convert ounces to grams:
- 1 ounce = 28.35 grams.
- So if you need 3 ounces of something, simply multiply 3 by 28.35 to get 84.05 grams (3 x 28.35 = 84.05).
- This same formula can be used for any unit of measure within either system—just remember that one ounce equals 28.35 grams!
How Many Grams in an Ounce and a Half?
- One ounce (abbreviated as oz) is a unit of mass and weight and it is equivalent to 28.35g of flour, sugar, butter, and other ingredients.
- One gram (abbreviated as g) is a unit of mass and weight that’s commonly used in cooking recipes; it’s equivalent to 0.0352739619 ounces or 1/1000th of a kilogram (1 kg equals 1000 g).
- This means that 1 ounce is equal to 28.35 grams when converted using either metric or imperial measurements.
- So if you want to convert 1½ ounces into grams then you would multiply 1.5 by 28.35 to get 42.525 grams (1.5 x 28.35 = 42.525).
How Many Grams in an Eighth of an Ounce?
- An eighth of an ounce (⅛ oz or 0.125oz) is a unit of mass and weight that is commonly used in cooking recipes, especially for measuring small amounts of ingredients like spices.
- It is equal to 3.54375 grams (3.54g).
- To convert ⅛ oz into grams, you simply need to multiply the ounce value by 28.35, which is the equivalent of one ounce in grams (0.125 oz x 28.35 = 3.54375 g).
Grams to Ounces Conversion Table
Grams (g) | Ounces (oz) |
---|---|
0 g | 0 oz |
1 g | 0.04 oz |
2 g | 0.07 oz |
3 g | 0.11 oz |
4 g | 0.14 oz |
5 g | 0.18 oz |
6 g | 0.21 oz |
7 g | 0.25 oz |
8 g | 0.28 oz |
9 g | 0.32 oz |
10 g | 0.35 oz |
20 g | 0.71 oz |
28.35 g | 1 oz |
30 g | 1.06 oz |
40 g | 1.41 oz |
50 g | 1.76 oz |
60 g | 2.12 oz |
70 g | 2.47 oz |
80 g | 2.82 oz |
90 g | 3.17 oz |
100 g | 3.53 oz |
500 g | 17.63 oz |
1000 g | 35.27 oz |
Ounces to Grams Conversion Table
Ounces (oz) | Grams (g) | Kilograms (kg) + Grams(g) |
---|---|---|
0 oz | 0 g | 0 kg 0 g |
0.1 oz | 2.83 g | 0 kg 2.83 g |
0.5 oz | 14.17 g | 0 kg 14.17 g |
1 oz | 28.35 g | 0 kg 28.34 g |
2 oz | 56.70 g | 0 kg 56.69 g |
3 oz | 85.05 g | 0 kg 85.04 g |
4 oz | 113.40 g | 0 kg 113.39 g |
5 oz | 141.75 g | 0 kg 141.74 g |
6 oz | 170.10 g | 0 kg 170.09 g |
7 oz | 198.45 g | 0 kg 198.44 g |
8 oz | 226.80 g | 0 kg 226.79 g |
9 oz | 255.15 g | 0 kg 255.14 g |
10 oz | 283.50 g | 0 kg 283.49 g |
20 oz | 566.99 g | 0 kg 566.99 g |
30 oz | 850.49 g | 0 kg 850.48 g |
40 oz | 1,133.98 g | 1 kg 133.98 g |
50 oz | 1,417.48 g | 1 kg 417.50 g |
60 oz | 1,700.97 g | 1 kg 700.97 g |
70 oz | 1,984.47 g | 1 kg 984.47 g |
80 oz | 2,267.96 g | 2 kg 267.96 g |
90 oz | 2,551.46 g | 2 kg 551.46 g |
100 oz | 2,834.95 g | 2 kg 834.95 g |
500 oz | 14,174.8 g | 14 kg 174.80 g |
1000 oz | 28,349.5 g | 28 kg 349.52 g |
How to Measure Dry Weight?
The most accurate way to measure dry ingredients is by weight. This means using a kitchen scale (also known as a food scale) rather than measuring cups or spoons. A kitchen scale will give you precise measurements while measuring cups can be off by as much as 25%.
- To use a kitchen scale, start by setting it to zero (or tare).
- Then place the container you'll use for weighing on the scale and press "tare" again. This will set the weight of the container to zero so that all it registers is the weight of whatever ingredient you put inside it.
- If you don't have a digital kitchen scale, you can also buy a mechanical one – these have adjustable weights so that you can measure more accurately.
- Once you've added the necessary amount of an ingredient into your container, check if it's been measured correctly by gently shaking it from side to side. This will help break up any clumps and make sure there are no air pockets in between particles.
- It's also important to note that different ingredients should be measured differently – for example, when measuring flour, spoon it into your container until heaped before leveling off with a knife; this ensures that there is no extra flour in your measurement which could make recipes too heavy or dense.
- Other ingredients such as sugar or oats should be lightly fluffed before being placed on the scales as well as packed down slightly – this ensures even measurements across all containers used for weighing out these ingredients.
Cooking Weight Conversion Chart

People Also Ask [FAQs]
Yes, an ounce (oz) is the same amount, which is equal to 28.3495231 grams.
A troy ounce is equivalent to 31.1035 grams, which is 10% heavier than a standard ounce that weighs 28.35 grams.
A cup typically holds approximately 236.59 grams of liquid or 8 fluid ounces.
One ounce of protein contains seven grams.
Wrap Up: How Many Grams In An Ounce
- Now that you know how many grams are in an ounce, you can accurately convert your recipes and measurements!
- Remember that there are 28.35 grams in an ounce and 1000 milligrams in a gram- this is important to keep in mind when measuring volume (teaspoons, tablespoons, cups) versus weight (ounces, pounds).
- Ultimately it comes down to personal preference when deciding which measuring system bakers should use: metric or imperial. However, most recipes call for one or the other so bakers should be familiar with both systems before attempting any recipe.
- Using a kitchen scale rather than measuring cups or spoons will give you precise measurements while packing down slightly and gently shaking containers full of ingredients will help break down any clumps and create even measurements across containers used for weighing out these ingredients.
- Bakers often find it helpful to have both metric and imperial measurement tools on hand for more accurate recipe preparation. Thanks for reading our guide on oz to grams!
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