Size guide
30 mm vs 50 mm challenge coins: which size should you choose?
Minuteman Precision Engravings makes custom brass challenge coins in two sizes. The 30 mm Brass coin is about 1.2 inches across, a little bigger than a U.S. quarter. The 50 mm Brass coin is about 2 inches across, just under the short side of a credit card. Both come single- or double-sided with 2.5D sculpted relief and an antique finish.
Size comparison at a glance
| Feature | 30 mm Brass | 50 mm Brass |
|---|---|---|
| Diameter | 30 mm (about 1.2 in) | 50 mm (about 2 in) |
| Thickness | 3.2 mm (1/8 in) | 4 mm |
| Compared with | A bit bigger than a U.S. quarter (24.26 mm) | Just under a credit card’s short side (53.98 mm) |
| Sides | Single- or double-sided | Single- or double-sided |
| Relief and finish | 2.5D relief, antique finish | 2.5D relief, antique finish |
| Price | Per coin, by quantity: see Pricing. The 30 mm costs less per coin than the 50 mm. | |
Reference sizes: the U.S. Mint lists the quarter at 0.955 in (24.26 mm) across (U.S. Mint coin specifications). A standard (ID-1) credit card is 85.60 mm by 53.98 mm.
Drawn to scale
When to choose 30 mm
- You want an everyday coin that fits easily in a pocket.
- Your design is simple: a crest, initials, a short motto or one main image.
- You are ordering for a large group and want the lower per-coin price.
When to choose 50 mm
- Your design has fine detail, several elements or more lettering.
- You want a coin with more presence in the hand, for a retirement, award or keepsake.
- You want the 2.5D layers to have more room to show.
Not sure?
Send your artwork with a free quote request. We’ll suggest a size, and you’ll see your design in a digital draft before anything is engraved. Per-coin prices for both sizes are in Pricing on the home page. Curious how the relief works? Read what 2.5D engraving is.
Start your coin.
Send your logo, sketch or photo and we’ll reply with a price and a digital draft.