How do I convert Ounces to Grams?
Use the formula g = oz × 0.03527396195. Enter any oz value and CalcuNimble calculates g instantly.
Convert Ounces to Grams
Use this oz to g converter for fast everyday calculations, quick reference values, and the exact formula behind the result.
Ounces to Grams Converter
Convert Ounces (oz) to Grams (g) instantly.
Ounces to Grams: the go-to conversion for cooking and nutrition
Nutrition labels and international recipes often mix ounces and grams. This conversion helps you measure ingredients accurately and track portion sizes without second-guessing the numbers.
Formula
The formula is g = oz × 0.03527396195. Multiply the ounce value by 0.03527396195 to get the weight in grams. This factor is the reciprocal used in the gram-to-ounce conversion and applies to standard avoirdupois ounces.
Worked example
A snack pack claims to contain 1 oz of nuts. Multiply 1 by 28.3495 to get 28.35 g. When logging this into a nutrition tracker that expects grams, the precise conversion keeps your daily totals accurate.
Common Reference Values
| Ounces | Grams | Context |
|---|---|---|
| 1.0 oz | 28.35 g | 1 oz |
| 8.0 oz | 226.8 g | 8 oz |
| 16 oz | 453.59 g | 16 oz |
| 32 oz | 907.18 g | 32 oz |
Practical guidance
Nutrition tracking and dieting
Many diet apps default to grams, but packaged snacks list serving sizes in ounces. Converting accurately prevents undercounting calories. A 2 oz serving of cheese is about 57 g, and that difference matters when your daily budget is tight. Use the converter above rather than guessing round numbers.
Baking with international recipes
A British recipe might ask for 4 oz of butter while your scale only shows grams. Multiply 4 by 28.3495 to get 113.4 g, which is close enough to the standard 115 g stick used in many metric recipes. Write the converted amounts next to the original recipe for future reference.
Mistake: using rough approximations like 25 or 30
Some people round an ounce to 25 g or 30 g for mental math. At 25 g, you undercount by 3.35 g per ounce. Over a 16 oz roast, that gap grows to more than 50 g. For anything beyond casual estimation, use the exact 28.3495 factor or the converter above.
Frequently asked questions
What is the oz to g formula?
g = oz × 0.03527396195
Can I use decimals for oz to g?
Yes. The converter supports decimal input and shows up to 6 decimal places for accurate daily use.
When is oz to g conversion commonly used?
Useful for fitness logs, shipping labels, and recipe ingredient amounts.
How can I convert Grams back to Ounces?
Use the swap button in the converter card or open g to oz at /convert/g-to-oz/.