Coin and Capsule Table

Coin and Capsule Table main image Coin and Capsule Table image

Capsule Reference

Quick guide for Australian coin diameters and corresponding capsule sizes.

Coin Coin Diameter Capsule ProDUCt name Fit Quality
Decimal Currency (1966 - Present)
1 Cent 17.53 mm 18 mm QUADRUM 18 Tight (0.4mm gap)
2 Cent 21.59 mm 22 mm QUADRUM 22 Perfect Fit
5 Cent 19.41 mm 20 mm QUADRUM 20 Loose (0.6mm gap)
10 Cent 23.60 mm 24 mm QUADRUM 24 Perfect Fit
20 Cent 28.52 mm 29 mm QUADRUM 29 Perfect Fit
50 Cent (Dodec) 31.50 mm 32 mm QUADRUM 32 Perfect Fit
$1 Coin 25.00 mm 25 mm QUADRUM 25 Exact Fit
$2 Coin 20.50 mm 21 mm QUADRUM 21 Perfect Fit
Pre-Decimal (Imperial Era)
Threepence 16.0 mm 16 mm QUADRUM 16 Tight, try 17mm
Sixpence 19.0 mm 20 mm QUADRUM 20 Loose (1.0mm gap)
Shilling 23.5 mm 24 mm QUADRUM 24 Perfect Fit
Florin 28.5 mm 29 mm QUADRUM 29 Perfect Fit
Penny 30.8 mm 31 mm QUADRUM 31 Perfect Fit
Half Penny 25.5 mm 26 mm QUADRUM 26 Perfect Fit
Crown 38.5 mm 39 mm QUADRUM 39 Perfect Fit
Gold & Bullion Issues
Half Sov 19.30 mm 20 mm QUADRUM 20 Loose (0.7mm gap)
Sovereign 22.05 mm 22 mm QUADRUM 22 Tight / Exact
$200 Gold 24.00 mm 25 mm QUADRUM 25 Loose (1.0mm gap)
Collector's Note: The "Ordering SKU" (e.g., QUADRUM 22) is the common product code used by Australian dealers. The "Lighthouse Ref" is the 6-digit code found on the back of the physical box. Loose fits may benefit from foam rings to prevent rattling.