Ounces to Grams Converter
Convert ounces to grams instantly. Type an oz value and get the exact grams result. Formula: 1 oz = 28.3495 g.
Ounces to grams is a frequently needed cooking conversion, especially for those working across US recipe sites and metric kitchen scales. One avoirdupois ounce equals 28.3495231 grams. In baking, US recipes specify flour, sugar, and butter in cups and ounces while professional bakers worldwide use grams for precision. A recipe calling for 8 oz of cream cheese is 226.8 g. Butter in American recipes often comes as sticks (4 oz = 113.4 g), while European recipes specify in grams. For meat and proteins at US grocery stores, cuts are sold by the pound and ounce — a 6-oz chicken breast is 170 g. Nutrition labels in the US list serving sizes in grams (which is one reason even Americans need this conversion when reading labels). A 100 g serving of a food product is 3.53 oz. In precious metals, the troy ounce (31.1035 g) differs from the avoirdupois ounce (28.3495 g). Gold, silver, and platinum prices are quoted per troy ounce. A 1-oz gold coin weighs 31.1 g, not 28.35 g. This distinction matters for jewellery crafting and investment. In cannabis dispensaries operating in legal markets, product weights are stated in ounces and fractions: a "quarter" (quarter ounce) is 7.087 g; an "eighth" is 3.543 g.
Related Conversions
Free Online Unit Converter
Zolkit's unit converter supports 7 categories covering dozens of the most common conversions — length, weight, temperature, volume, area, speed, and torque. Pick a category, select your units from the dropdowns, type a value, and see the result instantly. A swap button reverses the conversion direction with one click. Your last-used category and units are remembered locally so the converter is ready when you return.
7 Unit Categories
Convert length, weight, temperature, volume, area, speed, and torque — all the unit conversions you need in one tool.
Instant Conversion
Results update as you type. Switch between units with dropdowns and see the converted value immediately.
Swap Units
Hit the swap button to instantly reverse the conversion direction. Saves time when you need both directions.
Offline-Ready
All conversions are calculated locally in your browser. No internet required after the page loads.
Works on Any Device
Clean, responsive layout that works on phones, tablets, and desktops alike.
Always Free
No account required, no ads, no limits. Convert as many units as you need, whenever you need.
How to Use the Unit Converter
- 1
Choose a unit category from the tab bar at the top: Length, Weight, Temperature, Volume, Area, Speed, or Other.
- 2
Select the unit you're converting from and the unit you're converting to using the dropdowns. Type your value and the result appears instantly.
- 3
Click the swap button (↔) to reverse the conversion direction, or click Copy to save the result to your clipboard.
Frequently Asked Questions
How many grams is 1 ounce?
1 avoirdupois ounce equals 28.3495 grams. This is the ounce used for food, postal weights, and general merchandise. The troy ounce (for precious metals) is 31.1035 grams.
What is 8 ounces in grams?
8 oz = 226.796 grams (approximately 227 g). A common cooking reference: 8 oz of cream cheese or chocolate chips = 227 g.
What is the difference between a fluid ounce and a weight ounce?
A fluid ounce (fl oz) is a volume unit (29.5735 ml of water). A weight ounce (oz) is a mass unit (28.3495 g). They are close in value for water because water's density is approximately 1 g/ml, but diverge significantly for denser or lighter substances.
How do I convert ounces to grams in my head?
Multiply ounces by 28.35 or approximate as "multiply by 28" for a quick estimate. For example, 4 oz × 28 = 112 g (actual: 113.4 g). The rough rule: 1 oz ≈ 30 g overestimates slightly.