A 1 oz gold Vienna Philharmonic contains one troy ounce of gold, 31.10 g by the Austrian Mint’s listing. At a fineness of 999.9 the coin is almost entirely gold, so the “gold weight” the Mint lists is, to within rounding, the weight of the whole coin.
All five sizes, from the Austrian Mint
| Size | Face value | Gold weight | Fineness | Diameter | Fine gold (troy oz) |
|---|---|---|---|---|---|
| 1 oz | 100 euro | 31.1 g | 999.9 | 37 mm | 1.0000 |
| 1/2 oz | 50 euro | 15.55 g | 999.9 | 28 mm | 0.5000 |
| 1/4 oz | 25 euro | 7.78 g | 999.9 | 22 mm | 0.2500 |
| 1/10 oz | 10 euro | 3.11 g | 999.9 | 16 mm | 0.1000 |
| 1/25 oz | 4 euro | 1.24 g | 999.9 | 13 mm | 0.0400 |
The Mint’s weights are rounded to two decimals: 31.10 g is a hair under a troy ounce (31.1035 g), and 1.24 g for the 1/25 oz coin is a rounding of 1.244 g. The fine-gold column uses the stated fractions of an ounce.
What sets the Philharmonic apart
The Austrian Mint says the gold Vienna Philharmonic first went on sale on October 10, 1989, that it is Europe’s only bullion coin, and that about 13.8 million of the 1 ounce coins had been sold worldwide by the end of 2023. It describes the coin’s purity as 99.99 percent. The coin carries a face value in euros (100 euro for the 1 oz size) that is only a legal-tender label; the gold, not the face value, is what the coin is for.
Two practical points follow from the numbers. First, the 1/25 oz coin is much smaller than its siblings (13 mm, 1.24 g), so it is easy to mistake for a token if you only know the larger sizes. Second, a Philharmonic and a Maple Leaf of the same size hold the same gold (both 1 oz at about 99.99%), but the Philharmonic’s 37 mm diameter is wider than the Maple Leaf’s 30 mm: the same gold is spread thinner. See the Maple Leaf page, or read more on the series in our Philharmonic guide.
Silver and platinum Philharmonics
The same design is struck in silver and, since 2016, platinum (1 oz and 1/25 oz, fineness 999.5). Those coins have their own fine-metal content; this page covers only the gold coins.
Work out your own
Gold value = fine troy ounces × the price you type × number of coins. It is the metal only, not what a dealer pays or charges.
Frequently asked questions about gold in a Philharmonic
How many grams of gold are in a 1 oz Vienna Philharmonic?
The Austrian Mint lists 31.10 g, one troy ounce at 999.9 fineness.
Is the Philharmonic pure gold?
It is 999.9 fine, effectively pure.
What is the smallest gold Philharmonic?
The 1/25 oz coin: 1.24 g, 13 mm, 4 euro face value.
Other coins
The same question for other popular gold coins:
- How Much Gold Is in a $20 Double Eagle?
- How Much Gold Is in a Gold Britannia?
- How Much Gold Is in a Gold Maple Leaf?
- How Much Gold Is in a Krugerrand?
- How Much Gold Is in an American Gold Eagle?
For any coin, the content chart lists weight, fineness and sources, and the melt value calculator covers 27 coins at once.
Gold Coins Today publishes general information about coin collecting and precious metals, not financial, investment, tax or legal advice. Articles on this site are drafted with AI assistance (see our editorial policy) and are not written or reviewed by certified numismatists, appraisers, financial advisors or dealers. Coin and bullion values change constantly and depend on condition, authenticity and the current market — get a current appraisal or spot price from a qualified, reputable source before buying or selling, and consult a licensed financial advisor before treating precious metals as part of an investment strategy.