A half ounce is about 14.2 grams. Using the USDA/FDA reference conversion, 1 ounce = 28.3 g, so 0.5 ounce equals 14.15 g, commonly rounded to 14.2 g.
How Many Grams Are In A Half Ounce: 14.15 grams. Since 1 ounce equals 28.3 grams, a half ounce is 28.3 ÷ 2, which gives 14.15 grams. For most kitchen measuring, that is usually rounded to 14.2 grams or 14 grams, depending on how precise your scale is.
Use 14.15 grams when converting a recipe or weighing ingredients such as spices, nuts, chocolate, butter, or dry yeast. If your digital scale shows whole grams only, measure 14 grams. If it shows tenths, measure 14.2 grams.
The exact conversion is based on the standard: 1 ounce = 28.3 grams.
The Short Answer, With Numbers
A half ounce is 14.15 grams. The reference number is 1 ounce = 28.3 grams, so half of that is 28.3 ÷ 2 = 14.15 grams.
| US weight | US equivalent | Metric weight |
|---|---|---|
| 1 ounce | – | 28.3 g |
| 4 ounces | 1/4 pound | 113 g |
| 8 ounces | 1/2 pound | 227 g |
| 16 ounces | 1 pound | 454 g |
Exact half-ounce conversion
Use the 1-ounce reference row: 1 ounce = 28.3 g. A half ounce is 0.5 ounce, so the math is 28.3 × 0.5 = 14.15 g.
For most kitchen use, 14.15 g is the direct answer. If your scale displays whole grams only, a half ounce will usually be entered as 14 g.
If your scale shows tenths of a gram, use 14.2 g when rounding 14.15 g to one decimal place. If it shows hundredths, use 14.15 g.
Worked kitchen examples
If a recipe calls for 1/2 ounce of an ingredient, weigh 14.15 g. That is the clean metric conversion from the ounce row in the table.
If a package lists 1 ounce as 28.3 g and you need half the package amount, divide 28.3 g by 2. The result is 14.15 g.
If you need 2 half-ounce portions, multiply 14.15 g by 2. That gives 28.3 g, which matches 1 full ounce.
If you need 3 half-ounce portions, multiply 14.15 g by 3. That gives 42.45 g total.
If you need 4 half-ounce portions, multiply 14.15 g by 4. That gives 56.6 g total.
Common edge cases
Do not confuse a half ounce by weight with a half fluid ounce. This answer is for weight: ounces to grams. A fluid ounce measures volume, not weight.
A half ounce is not 15 g by the USDA/FDA reference figure given here. It is 14.15 g from 28.3 g per ounce.
For small amounts, the rounding matters. 14 g is slightly low compared with 14.15 g. 15 g is higher by 0.85 g.
When precision matters, use 14.15 g. When a casual cooking recipe tolerates whole-gram measuring, 14 g is the nearest whole gram.
The quick formula is: grams = ounces × 28.3. For half an ounce, grams = 0.5 × 28.3 = 14.15.
Half Ounce To Grams
A half ounce is 14.15 grams. This comes from the USDA/FDA reference value: 1 ounce = 28.3 grams. Divide 28.3 by 2, and you get 14.15.
For most kitchen measuring, you can treat a half ounce as 14 grams when a whole-gram answer is enough. Use 14.15 grams when scaling a recipe or calculating nutrition more closely.
Quick Half-Ounce Conversion
| Ounces | Grams | Best kitchen use |
|---|---|---|
| 0.5 oz | 14.15 g | Precise conversion |
| 0.5 oz | 14 g | Everyday cooking |
| 1 oz | 28.3 g | Reference value |
| 2 oz | 56.6 g | Double 1 ounce |
| 4 oz | 113 g | Also 1/4 pound |
If your scale shows whole grams only, weigh 14 g for a half ounce. That is just 0.15 g below the exact conversion, a tiny difference for most home recipes.
If your scale shows tenths of a gram, weigh 14.2 g. That rounds 14.15 g to the nearest tenth. This is useful for yeast, salt, spices, gelatin, or small baking formulas.
If your scale shows hundredths of a gram, weigh 14.15 g. That is the exact half-ounce value using the given conversion of 1 ounce to 28.3 grams.
Worked Examples
Example 1: A recipe calls for 1/2 ounce of chocolate. Use 14.15 g exactly, or 14 g on a whole-gram kitchen scale.
Example 2: You need half of a 1-ounce packet. Since 1 ounce is 28.3 g, half the packet is 14.15 g.
Example 3: You are doubling a recipe that uses 1/2 ounce of an ingredient. Double 14.15 g to get 28.3 g, which equals 1 ounce.
Example 4: You have 4 ounces, listed as 113 g. One half ounce is one-eighth of 4 ounces. Divide 113 g by 8 to get 14.125 g, which rounds to 14.13 g.
The slight difference between 14.15 g and 14.125 g comes from rounding in the reference table. For a direct half-ounce conversion, use 14.15 g.
Common Edge Cases
- Dry ounce: A half ounce by weight is 14.15 g.
- Fluid ounce: Do not use 14.15 g. A fluid ounce measures volume, not weight.
- Half of 1 pound: 1 pound is 454 g, so 1/2 pound is 227 g, not half an ounce.
- Quarter pound: 4 ounces is 113 g. A half ounce is much smaller: about one-eighth of that.
Use 0.5 oz = 14.15 g as the precise answer, 14.2 g for tenths-gram scales, and 14 g for standard whole-gram kitchen scales.
Quick Conversion Formula
Formula: ounces × 28.3 = grams. For a half ounce, use 0.5 × 28.3 = 14.15 grams.
Fast answer: 1/2 ounce is 14.15 g. If your scale shows whole grams only, it will usually read 14 g when rounded to the nearest gram.
Half-Ounce Conversion Math
| Amount | Calculation | Grams |
|---|---|---|
| 1 ounce | 1 × 28.3 | 28.3 g |
| 1/2 ounce | 0.5 × 28.3 | 14.15 g |
| 1/4 ounce | 0.25 × 28.3 | 7.075 g |
| 2 ounces | 2 × 28.3 | 56.6 g |
For most kitchen measuring, write 1/2 oz = 14.15 g. For a recipe scale that cannot show decimals, round to 14 g.
If precision matters, keep the decimal. A half ounce of yeast, spice blend, gelatin, or baking powder is better entered as 14.15 g than as 14 g.
The rounding difference is 0.15 g. That is small, but it can matter when measuring strong seasonings, leaveners, or ingredients used in very small amounts.
Worked Examples
Example 1: A recipe calls for 1/2 ounce of chocolate. Convert it as 0.5 × 28.3 = 14.15 g.
Example 2: You need 1 1/2 ounces. Convert 1.5 × 28.3 = 42.45 g. On a whole-gram scale, use 42 g.
Example 3: You have 4 ounces. The reference value is 4 oz = 113 g. Half of that is 56.5 g, which is close to the calculated 2 oz value of 56.6 g.
Example 4: You need 1/4 ounce. Divide the half-ounce amount by 2: 14.15 ÷ 2 = 7.075 g. Round to 7.1 g if your scale shows tenths.
Rounding Rules For Kitchen Use
- Nearest whole gram: 14.15 g becomes 14 g.
- Nearest tenth gram: 14.15 g becomes 14.2 g.
- Exact working value: keep 14.15 g for calculations.
- Double a half ounce: 14.15 g × 2 = 28.3 g.
Do not confuse weight ounces with fluid ounces. A half ounce by weight is 14.15 g. A fluid ounce measures volume; the reference value is 1 fl oz = 2 tbsp = 30 ml.
For dry ingredients, use grams. For liquids, use milliliters or fluid ounces unless the recipe gives a weight. The half-ounce gram answer applies to weight only.
If a package lists 8 oz = 227 g, then half of that package is 4 oz = 113.5 g. The reference table rounds 4 ounces to 113 g.
If a recipe says “about half an ounce,” 14 g is practical. If it says “0.5 oz” in a formula or baker’s percentage, use 14.15 g.
How To Measure It
A half ounce by weight is 14.15 grams, because 1 ounce equals 28.3 grams. For kitchen use, weigh it as 14 g if your scale shows whole grams, or 14.2 g if it shows tenths.
Best method: use a digital scale
Use weight for dry ingredients, chopped foods, meat, cheese, nuts, chocolate, spices, and anything sold by the ounce. Do not convert a half ounce to tablespoons unless the ingredient’s density is known.
- 1. Put the empty container on the scale. Use the bowl, plate, or measuring cup you plan to fill. This avoids weighing the container as part of the ingredient.
- 2. Press tare or zero. The display should read 0 g. If it reads 1 g, -1 g, or any other number, tare again before adding food.
- 3. Add the ingredient slowly. Stop at 14.15 g for an exact half ounce. On a whole-gram scale, aim for 14 g; it is the closest practical reading.
- 4. For a scale using ounces, weigh 0.5 oz. If your scale toggles units, set it to grams for finer control. A gram reading makes small kitchen amounts easier to hit.
- 5. If you overshoot, remove a little. For example, 16 g is more than a half ounce. Remove about 2 g to land near 14 g.
- 6. For repeated portions, multiply first. Two half-ounces equal 1 ounce, which is 28.3 g. Four half-ounces equal 2 ounces, which is 56.6 g.
Worked examples
If a recipe calls for 1/2 oz of chopped chocolate, weigh 14.15 g. If your scale only shows whole grams, use 14 g rather than trying to estimate by spoon.
If a label lists a serving as 1 oz, half that serving is 14.15 g. For a 28.3 g serving, divide by 2 to get 14.15 g.
If you need 3 half-ounce portions, multiply 14.15 g by 3. The result is 42.45 g. On a whole-gram scale, measure about 42 g.
Do not confuse weight ounces with fluid ounces
A half ounce by weight is 14.15 g. A fluid ounce measures volume: 1 fluid ounce equals 2 tablespoons or 30 ml. Half a fluid ounce is 1 tablespoon or 15 ml.
This matters because 1 tablespoon of water, oil, flour, honey, and chopped nuts will not all weigh the same. Use grams when the recipe says ounce as a weight.
Edge cases
For powders that pack down, such as flour or cocoa, weighing is much more reliable than scooping. A packed spoon and a loose spoon can give different weights.
For very light ingredients, such as dried herbs, a half ounce can look like a large volume. Trust the scale and stop at 14.15 g, not at a visual guess.
For sticky ingredients, tare the container first, then scrape in the food until the scale reads 14.15 g. This counts only what went into the container.
Kitchen Conversion Examples
A half ounce equals 14.15 grams, based on 1 ounce = 28.3 grams. In kitchen use, you will often round this to 14 g for quick measuring, but use 14.15 g when scaling formulas.
Basic Half-Ounce Math
| Amount | Calculation | Grams |
|---|---|---|
| 1/2 ounce | 28.3 ÷ 2 | 14.15 g |
| 1 ounce | Given conversion | 28.3 g |
| 2 ounces | 28.3 × 2 | 56.6 g |
| 4 ounces | Given conversion | 113 g |
Example: a recipe calls for 1/2 ounce of chopped chocolate. Weigh 14.15 g if your scale reads decimals. If it reads whole grams only, weigh 14 g.
Example: you need 1 1/2 ounces of nuts. Add 1 ounce plus 1/2 ounce: 28.3 g + 14.15 g = 42.45 g. On a whole-gram scale, use 42 g.
Example: a spice blend calls for 2 1/2 ounces total. Multiply 28.3 g by 2.5. The result is 70.75 g, which rounds to 71 g on most kitchen scales.
Scaling Recipes With Half Ounces
If a cookie recipe uses 1/2 ounce of salt and you double it, use 1 ounce. That is 28.3 g. If you triple it, use 1 1/2 ounces, or 42.45 g.
If you halve a recipe that calls for 1/2 ounce, divide 14.15 g by 2. The new amount is 7.075 g. A decimal scale should read 7.1 g; a whole-gram scale should read 7 g.
For four batches, multiply 14.15 g by 4. That equals 56.6 g, the same as 2 ounces. This is useful when scaling garnishes, dried fruit, nuts, or grated cheese.
| Recipe Amount | In Ounces | In Grams |
|---|---|---|
| Half of 1/2 oz | 1/4 oz | 7.075 g |
| Single amount | 1/2 oz | 14.15 g |
| Double amount | 1 oz | 28.3 g |
| Triple amount | 1 1/2 oz | 42.45 g |
| Quadruple amount | 2 oz | 56.6 g |
Common Kitchen Edge Cases
A half ounce by weight is not the same as a half fluid ounce. Weight uses grams. Fluid volume uses tablespoons or milliliters. The reference conversion is 1 fluid ounce = 2 tablespoons = 30 ml.
So, 1/2 fluid ounce equals 1 tablespoon, or 15 ml. That is a volume measure, not 14.15 g. It works for measuring liquid volume, not for converting dry ingredient weight.
For dense ingredients, 1 tablespoon may weigh more than 14.15 g. For airy ingredients, it may weigh less. Use the gram figure only when the recipe gives ounces by weight.
If a package says 4 ounces equals 113 g, then 1/8 of the package is 14.125 g. That is essentially the same kitchen amount as 1/2 ounce using 28.3 g per ounce.
If a recipe lists 8 ounces as 227 g, then 1/16 of that amount is 14.1875 g. The tiny difference comes from rounding in standard package conversions.
For practical prep, treat 1/2 ounce as 14 g when portioning toppings, herbs, seeds, or grated ingredients. Use 14.15 g for precise baking or repeated batch scaling.
Common Rounding Mistakes
The exact kitchen-reference conversion from the given table is simple: 1 ounce = 28.3 g, so 1/2 ounce = 14.15 g. Most mistakes come from rounding that number too early.
Rounding 1/2 Ounce to 14 g
Rounding 14.15 g down to 14 g is usually fine for casual cooking, but it is not exact. The difference is 0.15 g per half ounce.
That small gap grows when you multiply. For 4 half-ounce portions, exact weight is 56.6 g. If you use 14 g each, you get 56 g, short by 0.6 g.
For 8 half-ounce portions, exact weight is 113.2 g. Using 14 g each gives 112 g, short by 1.2 g.
This matters most with strong ingredients used in small amounts, such as salt, yeast, gelatin, baking powder, spices, or instant coffee. A 1 g shift can be noticeable.
Rounding 1 Ounce First, Then Dividing
A common shortcut is to round 1 ounce to 28 g, then divide by 2. That gives 14 g for 1/2 ounce.
Using the reference value, 1 ounce is 28.3 g. Half of that is 14.15 g, not 14 g. The shortcut drops 0.15 g every time you measure a half ounce.
If a recipe calls for 3 half-ounces, the exact math is 3 × 14.15 g = 42.45 g. The shortcut gives 3 × 14 g = 42 g.
If the recipe calls for 6 half-ounces, exact weight is 84.9 g. The shortcut gives 84 g. That is nearly a full gram low.
Rounding Up to 15 g
Some cooks round 1/2 ounce to 15 g because it is easier to remember. That is high by 0.85 g for every half ounce.
For 2 half-ounces, exact weight is 28.3 g. Using 15 g twice gives 30 g, which is 1.7 g too much.
For 4 half-ounces, exact weight is 56.6 g. Using 15 g each gives 60 g, which is 3.4 g too much.
That is a large error for concentrated ingredients. In baking, 3.4 g extra can change texture, rise, or saltiness depending on the ingredient.
Confusing Ounces by Weight With Fluid Ounces
For this question, ounce means weight. The table gives 1 ounce = 28.3 g. Do not use fluid-ounce values for grams.
A fluid ounce is a volume measure. The table gives 1 fluid ounce = 2 tablespoons = 30 ml. Milliliters are not grams unless density is known.
So 1/2 fluid ounce is 1 tablespoon, or 15 ml. That is not the same answer as 1/2 ounce by weight, which is 14.15 g.
Best Practical Answer
Use 14.15 g when precision matters and your scale shows hundredths. Use 14.2 g if your scale shows tenths. Use 14 g only when whole-gram rounding is acceptable.
Avoid 15 g unless the recipe is very forgiving. Compared with the exact 14.15 g, 15 g adds about 0.85 g per half ounce.
| Amount | Exact grams | If rounded to 14 g each | Error |
|---|---|---|---|
| 1/2 ounce | 14.15 g | 14 g | 0.15 g low |
| 1 ounce | 28.3 g | 28 g | 0.3 g low |
| 2 ounces | 56.6 g | 56 g | 0.6 g low |
| 4 ounces | 113.2 g | 112 g | 1.2 g low |
Frequently Asked Questions
How many grams are in a half ounce?
A half ounce is 14.15 grams. The reference conversion is 1 ounce = 28.3 grams, so 0.5 ounce equals 28.3 ÷ 2 = 14.15 grams. For most kitchen use, you can round it to 14.2 grams.
Is half an ounce the same as 14 grams?
Half an ounce is slightly more than 14 grams. The exact conversion from the reference figure is 14.15 grams. If a recipe is forgiving, 14 grams is usually close, but for baking or precise measuring, use 14.15 grams or 14.2 grams.
How do I convert 1/2 ounce to grams?
Use the reference conversion 1 ounce = 28.3 grams. Since 1/2 ounce is half of 1 ounce, divide 28.3 by 2. The result is 14.15 grams, which is commonly rounded to 14.2 grams on a digital kitchen scale.
How many grams are in 1/2 ounce of dry ingredients?
By weight, 1/2 ounce is 14.15 grams whether the ingredient is flour, sugar, spices, nuts, or chocolate. The gram weight does not change by ingredient. What changes is the volume, so measuring by grams is more consistent than using spoons or cups.
How many grams are in 1/2 ounce compared with 1 ounce?
One ounce is 28.3 grams, so 1/2 ounce is 14.15 grams. That means a half ounce is exactly half the weight of 1 ounce. For quick kitchen math, think of 1/2 ounce as about 14 grams.
