# Troy Ounces to Grams (oz t to g)

Source: https://www.unitconvertercalculator.com/weight/troy-ounces-to-grams/

**1 oz t = 31.1034768 g**

One troy ounce equals approximately 31.1035 grams. This conversion is essential for anyone buying or selling gold, silver, platinum, or palladium, as precious metals are priced per troy ounce on global commodity exchanges but physical products are often weighed in grams.

## Formula

Apply the conversion factor

## Conversion Table

| Troy Ounces (oz t) | Grams (g) |
|---|---|
| 0.1 oz t | 3.11034768 g |
| 0.25 oz t | 7.7758692 g |
| 0.5 oz t | 15.5517384 g |
| 1 oz t | 31.1034768 g |
| 2 oz t | 62.2069536 g |
| 5 oz t | 155.517384 g |
| 10 oz t | 311.034768 g |
| 25 oz t | 777.58692 g |
| 50 oz t | 1555.17384 g |
| 100 oz t | 3110.34768 g |
| 250 oz t | 7775.8692 g |
| 500 oz t | 15551.7384 g |
| 1000 oz t | 31103.4768 g |

## Units

### Troy Ounce (oz t)

A troy ounce is a unit of mass used for precious metals such as gold, silver, and platinum. It equals exactly 31.1034768 grams, about 10% heavier than the common avoirdupois ounce.

### Gram (g)

A metric unit of mass equal to one thousandth of a kilogram. Widely used in cooking, nutrition labeling, and science.

## Background

A gold bar marketed as '1 oz' contains 31.1 grams of gold, not 28.35 grams. Gold coins like the American Eagle, Canadian Maple Leaf, and South African Krugerrand each contain exactly one troy ounce (31.1 g) of pure gold. When comparing jewelry prices between countries, knowing that the troy ounce is about 10% heavier than a regular ounce prevents costly mistakes.

## Good to Know

In India and the Middle East, gold jewelry is sold by the gram with prices displayed per gram. In the US and UK, gold bullion is priced per troy ounce. This creates a constant need for conversion in the global gold market.

## FAQ

### How many grams are in a troy ounce?

One troy ounce equals exactly 31.1034768 grams. This is about 9.7% heavier than a regular (avoirdupois) ounce of 28.3495 grams.

### Why is a troy ounce different from a regular ounce?

The troy ounce comes from the medieval French city of Troyes and was historically used for precious metals. The regular (avoirdupois) ounce evolved from a different tradition. They are different units that happen to share the name 'ounce'.

### How do I calculate the value of gold in grams?

Divide the gold price per troy ounce by 31.1035 to get the price per gram. For example, if gold is $2,000 per troy ounce, the price per gram is $2,000 ÷ 31.1035 ≈ $64.30 per gram.

## Non-Frequently Asked Questions

### Is a troy ounce from the city of Troy?

Probably not Homer's Troy. The name likely comes from Troyes, a French town that hosted medieval trade fairs where precious metals were weighed. So your gold is measured using a system from a French market town, not an ancient Greek war zone.

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## See Also

- [Grams to Troy Ounces](https://www.unitconvertercalculator.com/weight/grams-to-troy-ounces/)