1 Troy Ounce to Gram
Quick answer
1 Troy Ounce (oz t) equals
31.103477 g
To convert 1 Troy Ounces to Grams, multiply by 31.1034768. Therefore, 1 Troy Ounce (oz t) equals 31.103477 Gram (g).
Formula: g = oz t × 31.1034768. Calculation: 1 × 31.1034768 = 31.103477 g.
Convert Troy Ounce (oz t) to Gram (g) online with our free unit converter. In mass, 1 oz t = 31.103477 g. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Troy Ounce to Gram
- Step 1 — start with the formula. g = oz t × 31.1034768
- Step 2 — substitute your figure. 1 oz t × 31.1034768
- Step 3 — read the result. 1 oz t = 31.103477 g
- Step 4 — check it in reverse. oz t = g × 0.0321507466 returns 1 oz t, which matches the figure you started with.
Mass Converter
26 units available
1 oz t = 31.103477 g
Formula:
g = oz t × 31.1034768With your value: 1 oz t = 31.1034768 g
How big is that?
Everyday references on a logarithmic scale, all expressed in troy ounce so you can sanity-check the result.
Other Troy Ounce to Gram conversions
Troy Ounce to Gram Conversion Table
| Troy Ounce (oz t) | Gram (g) |
|---|---|
| 0.5 | 15.551738 |
| 1 | 31.103477 |
| 2 | 62.206954 |
| 5 | 155.517384 |
| 10 | 311.034768 |
| 15 | 466.552152 |
| 20 | 622.069536 |
| 25 | 777.58692 |
| 50 | 1,555.17384 |
| 100 | 3,110.34768 |
| 250 | 7,775.8692 |
| 500 | 15,551.7384 |
| 1000 | 31,103.4768 |
Gram to Troy Ounce Conversion Table
| Gram (g) | Troy Ounce (oz t) |
|---|---|
| 0.5 | 0.016075 |
| 1 | 0.032151 |
| 2 | 0.064301 |
| 5 | 0.160754 |
| 10 | 0.321507 |
| 15 | 0.482261 |
| 20 | 0.643015 |
| 25 | 0.803769 |
| 50 | 1.607537 |
| 100 | 3.215075 |
| 250 | 8.037687 |
| 500 | 16.075373 |
| 1000 | 32.150747 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Troy Ounce (oz t)
Mass
1 troy ounce = 480 grains = 0.031 103 476 8 kg exactly. Used for precious metals only.
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Gram (g)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Standards and context behind Troy Ounce to Gram
- London Bullion Market Association (LBMA)
- Quotes gold and silver prices per troy ounce.
- Troy pound
- 12 troy ounces, not 16 — unlike the avoirdupois system.
How to Convert Troy Ounce to Gram
To convert from Troy Ounce (oz t) to Gram (g), multiply the value by 31.1034768.
Formula: g = oz t × 31.1034768
Reverse: oz t = g × 0.0321507466
Step-by-Step Example
- Start with your value in Troy Ounce. For example: 5 oz t
- Multiply by the conversion factor: 5 x 31.1034768
- The result is: 155.517384 g
Troy Ounce and Gram Relationship
This conversion bridges the US Customary / Imperial and Metric (SI) measurement systems, commonly required when translating scientific data, international engineering specifications, or trade standards. Since 1 Troy Ounce equals approximately 31.1035 Grams, the Troy Ounce represents a larger unit interval than the Gram. Understanding the relationship between Troy Ounce and Gram is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Troy Ounce
The troy ounce equals approximately 31.1 grams and is used for weighing precious metals like gold, silver, and platinum.
Common uses of Troy Ounce: gold trading, silver markets, precious metals.
About Gram
The gram equals one thousandth of a kilogram. It is commonly used for measuring food, ingredients, and small items.
Common uses of Gram: cooking, nutrition labels, jewelry.
Frequently Asked Questions
- What is 1 Troy Ounce in Gram?
- 1 Troy Ounce equals 31.103477 Gram.
- How many Grams are in 1 Troy Ounce?
- There are exactly 31.1034768 Grams in 1 Troy Ounce. This means the conversion factor from Troy Ounce to Gram is 31.1034768.
- What is the formula to convert Troy Ounce to Gram?
- The formula to convert Troy Ounce to Gram is: g = oz t × 31.1034768. For example, to convert 10 Troy Ounces to Grams, you would multiply 10 by 31.1034768.
- What is a Troy Ounce?
- The troy ounce equals approximately 31.1 grams and is used for weighing precious metals like gold, silver, and platinum.
- What is a Gram?
- The gram equals one thousandth of a kilogram. It is commonly used for measuring food, ingredients, and small items.
- What are the common uses of Troy Ounce?
- The Troy Ounce is commonly used in gold trading, silver markets, precious metals.
- Why are precious metals weighed in troy ounces?
- The troy system survived as the bullion standard; LBMA benchmark prices for gold, silver, platinum and palladium are all quoted per troy ounce of 31.1034768 g.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). 1 Troy Ounce to Gram. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/1-troy_ounce-to-gram