If your recipe is US-based, converting ounces to grams keeps everything metric-friendly.
How do I convert Ounces to Grams?
Quick explanation
Use this page when a US recipe lists ingredient weight in ounces and you need metric grams for scale-based measuring. This is especially useful in baking, batch prep, and recipe testing, where gram values are easier to repeat and much cleaner to scale than loose ounce fractions. One ounce equals 28.35 grams, so converting to grams gives you a unit that most digital kitchen scales handle naturally and precisely. This is helpful for flour, sugar, butter, cheese, chocolate, and proteins where a small weight difference can change the result or make repeat batches harder to match. This converter gives exact values, explains the unit relationship clearly, and helps you decide when a rounded gram total is fine for everyday prep versus when to keep the exact figure for tighter consistency, recipe testing, or production-style repeatability across multiple batches. For reverse conversion, use grams to ounces or browse the kitchen weight hub.
oz to g
Converted value
28.35 g
~ 28 g
Scale preview
Quick equivalents
Quick kitchen estimate. For precise nutrition or production work, verify standards and source measurements.
Calculation steps
How to convert ounces to grams manually
grams = ounces × 28.349523125
1 ounce is exactly 28.349523125 grams.
Practical kitchen shortcut
grams ≈ ounces × 28.35
For many home uses, rounding to whole grams is practical and fast.
Worked example
Input: 8
Exact: 8 × 28.349523125 = 226.796 g
Practical: 8 oz is about 227 g (often rounded to 225-227 g by context).
About these units
Ounce (oz)
Ounce is a US customary weight unit used in recipe notes, labels, and package weights. It is common in American ingredient lists, but it can feel awkward once you start scaling or weighing on a metric scale.
- 16 oz = 1 lb.
- Ounces are convenient in US package and portion references.
- Many recipes use ounce values for flour, cheese, meat, chocolate, and other weight-based ingredients.
Gram (g)
Gram is a metric unit that works well with digital kitchen scales and precise baking workflows. It is usually the easier endpoint when you want cleaner scaling, smaller adjustments, and repeatable results.
- 1000 g = 1 kg.
- Grams make scaling and portioning easier to keep consistent.
- Gram outputs are often easier to write into repeatable prep notes than ounce fractions.
Tips
Some tools round differently. If your result is off by a tiny amount, rounding is usually the reason.
Cups to grams depends on the ingredient (flour vs sugar vs butter).
Quick Reference
| oz | g |
|---|---|
| 0.5 | 14.17 |
| 1 | 28.35 |
| 2 | 56.7 |
| 4 | 113.4 |
| 8 | 226.8 |
| 12 | 340.19 |
| 16 | 453.59 |
| 32 | 907.18 |
FAQ
How many grams are in 1 ounce?
1 ounce equals about 28.35 grams.
Is ounce weight the same as fluid ounce?
No. Ounce is weight, while fluid ounce is volume.
Why convert ounces to grams?
Grams are easier to scale and usually more precise for baking.
How many grams are in 8 ounces?
8 ounces is about 226.8 grams.
Should I round gram outputs?
Yes for most kitchen use. Whole-gram rounding is usually enough unless the recipe needs very high precision.
When is ounces to grams most useful in real cooking?
It is most useful when a US recipe gives weight in ounces but you want to measure on a metric scale, especially for baking, meal prep, and any recipe you plan to repeat exactly.