Two sticks of butter, a standard block of cream cheese, half a pound on a deli scale. All of those are 8 ounces, and all of them weigh 226.8 grams.
That figure covers most of what this page does. The rest handles the cases where 8 ounces is not 226.8 g, because recipes and labels keep producing them: fluid ounces, troy ounces, and cup measures that change with the ingredient.
The conversion itself
Multiply ounces by 28.3495 to get grams. For this amount the working is 8 × 28.3495 = 226.7962 g, which rounds to 226.8 g at one decimal place and 227 g as a whole number.
The factor is exact, not an approximation that gets revised. An ounce is one sixteenth of the international avoirdupois pound, which is fixed at exactly 0.45359237 kg, so one ounce works out to exactly 28.349523125 g.
Going back the other way, divide grams by 28.3495. The rounded figure round-trips cleanly at kitchen precision: 226.8 g is 8.00 oz. A true 227 g is 8.007 oz, over by 0.2 g, an amount no kitchen scale can even display.
Ounce by ounce to 8
The build is even, at 28.35 g per step. 2 ounces is 56.7 g, 4 ounces is 113.4 g, and each further ounce adds the same amount again:
| Ounces | Grams |
|---|---|
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 3 oz | 85.05 g |
| 4 oz | 113.40 g |
| 5 oz | 141.75 g |
| 6 oz | 170.10 g |
| 7 oz | 198.45 g |
| 8 oz | 226.80 g |
Halfway up the table is the figure bakers use most: 4 oz, one stick of butter, at 113.4 g. Double it and you are at 8 oz.
What 8 ounces looks like on a shelf & a scale
- Two sticks of US butter. Each stick is 4 oz and 113.4 g, with tablespoon marks printed on the wrapper, so two sticks are the full 226.8 g.
- A standard US block of cream cheese. It is sold as an 8 oz block, which makes it 226.8 g, whatever a converter page rounding it to a 200 g block might suggest.
- The smaller retail bag of coffee. Beans are bagged at 8 oz in the US and at 227 g in metric markets; it is the same bag with a different label.
- A large flagship phone. The iPhone 16 Pro Max is listed at 227 g, or 7.99 oz, which is 8 ounces to within 0.2 g.
- An 8 oz steak, or a half-pound burger patty before cooking. Steakhouse menus price this cut by the ounce figure, and 226.8 g is what lands on the scale.
8 ounces in cups depends on the ingredient
There is no single cup answer, because a cup measures volume and this ounce measures weight. The same 226.8 g fills very different cup counts:
| Ingredient | 8 oz in cups | One cup weighs |
|---|---|---|
| Butter | 1 cup | 227 g |
| Granulated sugar | about 1.15 cups | 198 g |
| Chocolate chips | about 1.33 cups | 170 g |
| All-purpose flour | about 1.8 cups | 125 g |
Butter is the tidy case: 8 oz of butter is exactly one cup, because the US cup for butter was built around the two-stick block. Flour is the untidy one, needing close to two cups for the same weight. That spread, a full cup of difference between ingredients at identical weight, is why serious baking recipes print grams and let the scale settle it.
When 8 ounces is not 226.8 grams
Two other units share the ounce name, and neither converts to 226.8 g.
8 fluid ounces: volume, not weight
8 fl oz is 236.6 ml of volume, one US cup. It says nothing about weight until the liquid is named. Filled with water, that cup weighs 236.6 g, which is 8.35 oz by weight, a third of an ounce heavier than 8 oz. Filled with flour instead, the same cup weighs 125 g, only 4.4 oz. The rhyme about a pint being a pound holds roughly for water and milk, and fails for almost everything dry.
8 troy ounces: precious metals
8 troy oz is 248.8 g, a full 22 g heavier than 8 ordinary ounces. The troy ounce, used for gold, silver, and platinum, weighs 31.1035 g against the everyday ounce’s 28.3495 g. A price quoted per ounce for metal is always the troy figure, so converting a bullion weight with the kitchen factor understates it by about 9 percent.
Rounding it in real recipes
Printed and displayed versions of this figure run from 224 g to 230 g. Each has a reason:
- A scale with one decimal shows the true figure: 226.8 g.
- Metric recipes often print 225 g for 8 oz. That is 1.8 g light, 0.8 percent, and it makes no difference in a cake or a sauce.
- The mental shortcut of 28 g per ounce gives 224 g, 1.2 percent low. Fine for shopping, rough for baking.
- The other shortcut, 30 g per ounce, gives 240 g. That is 5.8 percent high, 13.2 g of error, about a tablespoon of butter. Skip it when the recipe matters.
FAQ
How many grams are in 8 ounces?
8 ounces is 226.8 grams. The exact figure is 226.7962 g, from 8 multiplied by 28.3495, the gram weight of one ounce.
Is 8 ounces exactly 227 grams?
No. 227 g is the whole-number rounding of 226.7962 g. Weighed precisely, 227 g is 8.007 oz, over 8 oz by 0.2 g.
Is 8 oz half a pound?
Yes. There are 16 ounces in one avoirdupois pound, so 8 oz is exactly half a pound, 0.5 lb, and half of the pound’s 453.59 g is the same 226.8 g.
How much is 8 oz in milliliters?
Only a fluid ounce converts to milliliters: 8 fl oz is 236.6 ml of volume. An 8 oz weight has no milliliter figure of its own; the volume it takes up depends on what is being weighed, which is why 8 oz of flour and 8 oz of water fill different amounts of a jug.
Using the figure in the kitchen
- Switch the scale to grams before weighing, and tare the bowl. Converting a pound-and-ounce display reading afterwards adds a step and a rounding you do not need.
- Count sticks when butter is the ingredient. Two sticks is 8 oz and 226.8 g, and the wrapper’s tablespoon lines divide a stick into 14.2 g pieces for smaller amounts.
- Converting a whole recipe in one pass: multiply every ounce figure by 28.35, then round each result once. Rounding ingredient by ingredient as you go is how a converted recipe quietly drifts.
- Working from the gram side instead: 100 grams is 3.53 oz, so an 8 oz amount is two of those 100 g blocks plus another 26.8 g, a useful cross-check when a packet is printed in grams only.
