How much silver is in a 1966 round 50c coin?
The round 50 cent coin was only made in 1966, and it is the one decimal Australian circulating coin with real silver in it.
Last updated 05/11/2026
The short answer
Each coin weighs about 13.28 grams and is 80% silver, so it holds about 10.6 grams of pure silver. That is about a third of a troy ounce.
Roughly three coins hold about one troy ounce of silver, which is why these coins are usually sold by metal content rather than face value.
How to tell it apart
Look for a round coin dated 1966 with the Australian coat of arms on the back. The 12-sided 50 cent coin that replaced it from 1969 contains no silver.
Working out what it is worth
The metal value moves with the silver price. Our gold and silver calculator has the 1966 round 50 cent coin built in, so you can enter how many you have and see the value at today's price.
If you want to sell, bring them to our Booragoon store with photo ID. We price them on their pure silver content.
* 100% of spot applies to pure gold, silver and platinum bullion, up to 100 g of gold, 10 kg of silver or 100 g of platinum per person per day; above that we pay 98% of spot. Any single item over 50 g of gold or 1 kg of silver (for example a 100 oz bar) is 98%, and any platinum item over 1 oz is 96%. Gold items over 5 oz, silver items over 5 kg and platinum items over 100 g are priced individually on the day. Non-pure gold such as 22ct sovereigns is 95% of the pure gold content; non-pure silver such as pre-decimal coins is 90% of the pure silver content. We do not buy jewellery or scrap. Rates are set when we test and weigh your metal.
Related: Gold and silver calculator · Sell to us · Australian coins with silver
General information only. It is not financial or tax advice.