Grams to Ounces Converter
Enter the weight in grams below to convert it to ounces.
Convert Grams to Ounces
Enter a value in grams (g) to convert to ounces (oz).
Gram to Ounce Conversion Table
Table showing various gram measurements converted to ounces. Click any preset value or arrow to load it into the converter.
| Grams (g) | Ounces (oz) |
|---|---|
| 1 g | 0.035274 oz |
| 2 g | 0.0705479 oz |
| 5 g | 0.1763698 oz |
| 10 g | 0.3527396 oz |
| 15 g | 0.5291094 oz |
| 20 g | 0.7054792 oz |
| 25 g | 0.881849 oz |
| 30 g | 1.0582189 oz |
| 50 g | 1.7636981 oz |
| 75 g | 2.6455471 oz |
How to Convert Grams to Ounces
To convert grams to ounces, multiply the weight by the following conversion ratio: 0.035274 ounces/gram.
Since one gram is equal to 0.035274 ounces, you can use this simple formula to convert:
The weight in ounces is equal to the weight in grams multiplied by 0.035274.
For example, here's how to convert 100 grams to ounces using the formula above.
How Many Ounces Are in a Gram?
There are 0.035274 ounces in a gram, which is why we use this value in the formula above.
Our gram to ounce calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Grams and ounces are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Gram?
A gram is a unit of weight equal to 1/1,000 of a kilogram (0.001 kg). Metric unit equal to one-thousandth of a kilogram (0.001 kg). [1]
The gram is classified as a metric and SI-compatible unit of weight. Grams can be abbreviated as g; for example, 1 gram can be written as 1 g.
When working with grams (g) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, grams (g) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is an Ounce?
An ounce is a unit of weight equal to 0.0283495 kilograms (kg), the base unit for weight. Equal to 1/16 of a pound (approx. 28.3495 grams). [2]
The ounce is classified as a US customary and imperial unit of weight. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.
When working with ounces (oz) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, ounces (oz) are widely used across standard weight applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting weight between grams (g) and ounces (oz), keep full floating-point precision (1 g = 0.035274 oz; 1 oz = 28.3495231 g) during intermediate calculations and round only the final ounce figure to match your instrument tolerance.
More Gram & Ounce Conversions
Need to calculate in the opposite direction? Use our ounces to grams converter (oz to g) to switch your starting unit immediately. You can also explore related tools such as converting pounds to ounces, converting kilograms to ounces, or converting grams to kilograms.
Convert from Grams
Weight and volume require ingredient density (g/mL). Choose a USDA FoodData Central verified ingredient below:
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Grams (g) to Ounces (oz)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Gram (g) & Ounce (oz)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (g to oz)