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Coin Capsule Size Chart

Need help finding the right size capsule for your coin? We have created a list of popular U.S. Coins with their millimeter sizes listed below. Use the Ring Size (mm) column to find the recommended capsule size designed to fit your coin. Make sure to also use the Cap Size column to fit your capsule in a Guardhouse Display Box designed to hold S, M, L and XL sized coin capsules.

Direct-Fit Coin Capsules

Coin Size Outside Dim Inside Dim Inside Depth Total Depth Standard Exterior Size
Dime 30.9 17.91 1.37 4.5 Small
Cent 30.9 19.04 1.55 4.5 Small
Nickel 30.9 21.2 1.98 4.5 Small
Quarter 30.9 24.26 1.77 4.5 Small
Small Dollar 30.9 26.49 2.03 4.5 Small
Half Dollar 36.24 30.6 2.17 4.8 Medium
Large Dollar 44.45 38.1 2.9 5.7 Large
Silver Round 44.45 39.4 2.95 5.7 Large
Silver Eagle 44.45 40.58 2.95 5.7 Large
Tenth Oz Gold Eagle 30.9 16.5 1.28 4.5 Small
Quarter Oz Gold Eagle 30.9 21.99 1.8 4.5 Small
Half Oz Gold Eagle 44.45 27 2.16 5.7 Large
One Oz Gold Eagle 44.45 32.68 2.88 5.7 Large
Extra Large Capsule 51.58 46.17 3 5.7 Extra Large
1 Oz Silver Bar 34.5x55.5 29.3x50.3 2.52 6.1 BAR

Ring-Fit Capsules

U.S. Coins Ring Size (mm) Cap Size
13 mm - Gold $1 (Type 1) 13 S
14 mm - Silver Three Cent Pieces (1851-1873) 14 S
15 mm - Gold $1 (Type 2 & 3), Commemorative Gold $1 15 S
15.5 mm - Half Dimes (1829 -1873; Capped Bust, Liberty Seated) 16 S
16.5 mm - Half Dimes (1794 -1805),  $5 American Gold Eagle - 1/10 oz, $10 Platinum American Eagle - 1/10 oz 16 S
17.9 mm - U.S. Dimes (1837 - Present) 18 S
18 mm - Nickel Three Cent Pieces (1865 -1889), Gold $2 1/2 (1840 -1929) 18 S
18.2 mm - $2 1/2 Gold Capped Head To Left Reduced Diameter (1829 -1834) 18 S
18.5 mm - Capped Bust Dime (1828 -1837), $2 1/2 Gold Capped Head To Left Lg. Dia. (1821-1827) 18 S
18.8 mm - Capped Bust Dime (1809 - 1828) 18 S
19 mm - U.S. Cents (1856 - Present), Drapped Bust Dime (1796 -1807) 19 S
20 mm - $2 1/2 Gold (1796 -1808) 20 M
20.5 mm - Shield Nickel (1866 -1883), $3 Gold (1854 -1889) 20 M
21.2 mm - U.S. Nickels (1883 - Present) 21 M
21.6 mm - $5 Gold (1840C -1929) 21 M
22 mm - 20 Cent Pieces (1875 -1878), $10 American Gold Eagle -  ¼ oz, $25 American Platinum Eagle  ¼ oz 22 M
22 mm - $5 Gold Classic Head (1834 -1838), $5 Liberty Head (1839 -1840) 22 M
22.5 mm - Braided Hair Half Cent (1840 -1857),  Two Cent Pieces (1864 -1873) 23 M
23.5 mm - Half Cents (1794 -1836) 23 M
23.8 mm - $5 Gold Cap Head (1829 -1834) 23 M
24.3 mm - U.S. Quarters (1831- Present) 24 M
25 mm - $5 Gold (1795 -1829) 25 M
26.5 mm - U.S. Small Dollars (1979 - Present), $10 First Spouse Gold 26 L
27 mm - Capped Bust Quarters (1815-1828), $10 Gold (1838 -1933), $25 American Gold Eagle - ½ oz , $50 American Platinum Eagle - ½ oz  27 L
27.5 mm - Lg. Cent Young Head (1835 -1857), Draped Bust Quarter (1796 -1807) 27 L
28/29 mm - Lg. Cent Matron Head (1816 -1835) 28 L
29 mm  -  Lg. Cent Lib. Cap (1793 -1796), Lg. Cent Bust (1796 -1807), Lg. Cent Classic (1808 -1814), Lg. Cent Matron Head (1816 -1835) 29 L
30 mm - Cap Bust Half Dollars (1836 -1839) 30 L
30.6 mm - U.S. Half Dollars (1839 - Present), Half Dollar Commemoratives) 30 L
32 mm - 1/2 oz. Silver Rounds 32 L
32.5 mm - U.S. Half Dollars (1794 -1836; Flowing Hair, Draped Bust, Cap Bust) 32 L
32.7 mm - 1 oz. Gold Eagle $50, 1 oz. Gold Buffalo, 1 oz. $100 American Platinum Eagle 32 L
33 mm - $10 Gold Capped Bust to Right (1795 -1804), First Spouse Bronze Coin 33 XL
34 mm - $20 Liberty Gold, $20 St. Gaudens Gold 34 XL
37 mm - $7 Silver Strike 37 XL
38.1 mm - U.S. Large Dollars (1840 -1978; Liberty Seated, Trade, Morgan, Peace, Eisenhower), Modern 1 oz Silver Commemoratives 38 XL
39 - 39.4 mm - 1 oz. Silver Rounds, 1 oz. Copper Rounds, US Dollars (1794 - 1839 measure), Standard Casino Chips 39 XL
40.6 mm - 1 oz American Silver Eagle 40 XL
41 mm - Various Casino Tokens & Chips 41 XL