1 ounce is exactly 28.3495 grams.
This conversion means that when you take one ounce of any substance and convert it to grams, you get approximately 28.3495 grams. The calculation is based on the international avoirdupois ounce, which is widely used in the United States and other countries for measuring weight.
Conversion Result for 1 Ounce to Grams
Converting 1 ounce to grams results in 28.3495 grams, which is the accepted standard for weight measurement.
Conversion Tool
Result in g:
Conversion Formula
The formula to convert ounces into grams is: grams = ounces * 28.3495. This works because 1 ounce is equal to exactly 28.3495 grams. For example, if you want to convert 2 ounces, you multiply 2 by 28.3495, which gives 56.699 grams. This calculation allows for precise conversions based on the fixed conversion factor.
Conversion Example
- Convert 3 ounces:
- Start with 3 ounces.
- Multiply 3 by 28.3495.
- 3 * 28.3495 = 85.0485 grams.
- Result: 3 ounces equals 85.0485 grams.
- Convert 0.5 ounces:
- Start with 0.5 ounces.
- Multiply 0.5 by 28.3495.
- 0.5 * 28.3495 = 14.17475 grams.
- Result: 0.5 ounces equals 14.17475 grams.
- Convert 10 ounces:
- Start with 10 ounces.
- Multiply 10 by 28.3495.
- 10 * 28.3495 = 283.49 grams.
- Result: 10 ounces equals 283.49 grams.
- Convert 1.2 ounces:
- Start with 1.2 ounces.
- Multiply 1.2 by 28.3495.
- 1.2 * 28.3495 = 34.0194 grams.
- Result: 1.2 ounces equals 34.0194 grams.
Conversion Chart
This table shows the grams equivalent for values from -24.0 to 26.0 ounces. Use it to quickly find the weight in grams for given ounces.
| Ounces | Grams |
|---|---|
| -24.0 | -681.588 |
| -22.0 | -624.289 |
| -20.0 | -566.98 |
| -18.0 | -509.671 |
| -16.0 | -452.362 |
| -14.0 | -395.053 |
| -12.0 | -337.744 |
| -10.0 | -280.435 |
| -8.0 | -223.126 |
| -6.0 | -165.816 |
| -4.0 | -108.507 |
| -2.0 | -51.198 |
| 0.0 | 0 |
| 2.0 | 56.699 |
| 4.0 | 113.398 |
| 6.0 | 170.097 |
| 8.0 | 226.796 |
| 10.0 | 283.495 |
| 12.0 | 340.194 |
| 14.0 | 396.893 |
| 16.0 | 453.592 |
| 18.0 | 510.291 |
| 20.0 | 566.99 |
| 22.0 | 623.689 |
| 24.0 | 680.388 |
| 26.0 | 737.087 |
Related Conversion Questions
- How many grams are in 1 ounce of gold?
- What is the weight of 1 ounce in grams for cooking ingredients?
- How do I convert 1 ounce to grams for jewelry measurements?
- What is the gram equivalent of 1 ounce of coffee beans?
- Can I use this conversion for 1 ounce of liquid in grams?
- What is the weight of 1 ounce in grams in postal packages?
- How much is 1 ounce in grams for pharmaceutical powders?
Conversion Definitions
An ounce is a unit of weight used primarily in the United States and some other countries; it measures small quantities of mass, especially for food and precious metals. It is part of the avoirdupois system, where 16 ounces make a pound.
Grams are metric units of mass, used worldwide; one gram is defined as one-thousandth of a kilogram. It is a standard measurement for weights in scientific, medical, and everyday contexts, providing a precise and universal way to quantify mass.
Conversion FAQs
How precise is the 28.3495 grams per ounce conversion?
This conversion is exact for the international avoirdupois ounce, and the value is based on precise international standards. Minor variations might occur in different measurement systems, but for most practical purposes, 28.3495 grams is accurate.
Why do different countries have different ounce standards?
Different regions historically developed their own measurement systems. The avoirdupois ounce, used in the US and UK, differs from the troy ounce used for precious metals. These differences reflect historical measurement practices and standards.
Can I convert grams back to ounces using this method?
Yes. To convert grams to ounces, divide the grams by 28.3495. For example, 50 grams divided by 28.3495 gives approximately 1.76 ounces. This reverse calculation makes it easy to switch between the units.
Is the conversion affected by temperature or other factors?
No, the conversion factor is a fixed value based on international standards. Temperature, pressure, or other conditions do not affect the numerical relationship between ounces and grams, only the actual mass measured.
How do I convert ounces to grams for small quantities like 0.1 oz?
Simply multiply 0.1 by 28.3495, resulting in approximately 2.83495 grams. The same formula applies regardless of the size of the measurement, allowing for easy calculations of tiny weights.
Last Updated : 01 June, 2025
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Sandeep Bhandari holds a Bachelor of Engineering in Computers from Thapar University (2006). He has 20 years of experience in the technology field. He has a keen interest in various technical fields, including database systems, computer networks, and programming. You can read more about him on his bio page.