Evolution of Canadian Coin Physical Specifications

The following table shows the changes in size, weight and material used to manufacture Canadian circulation coins from 1858 to date.

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
1
Cent
1858 - 1859
95% copper, 4% tin, 1% zinc
4.54
25.4
?
1876 - 1919
95% copper, 4% tin, 1% zinc
5.67
25.4
?
1919 - 1920
95.5% copper, 3% tin, 1.5% zinc
5.67
25.4
?
1920 - 1941
95.5% copper, 3% tin, 1.5% zinc
3.24
19.05
1.65
1942 - 1977
98% copper, 0.5% tin, 1.5% zinc
3.24
19.05
1.65
1978 - 1979
98% copper, 1.75% tin, 0.25% zinc
3.24
19.05
1.52
1980 - 1981
98% copper, 1.75% tin, 0.25% zinc
2.8
19.0
1.45
1982 - 1996
98% copper, 1.75% tin, 0.25% zinc
2.5
19.1
1.45
1997 - 1999
98.4% zinc, 1.6% copper plating (Non-Magnetic)
2.25
19.05
1.45
2000 - 2012*
94% steel, 1.5% nickel, 4.5% copper plating (Magnetic)
2.35
19.05
1.45
2000 - 2012*
98.4% zinc, 1.6% copper plating (Non-Magnetic)
2.35
19.05
1.45

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
5
Cent
1858 - 1910
92.5% silver, 7.5% copper
1.16
15.5
?
1910 - 1919
92.5% silver, 7.5% copper
1.17
15.5
?
1920 - 1921
80% silver, 20% copper
1.17
15.5
?
1922 - 1942
99% nickel
4.54
21.21
1.7
1942 - 1943
88% copper, 12% zinc (tombac)
4.54
21.21
1.7
1944 - 1945
chrome plated steel
4.54
21.21
1.7
1946 - 1951
99.9% nickel
4.54
21.21
1.7
1951 - 1954
chrome plated steel
4.54
21.21
1.7
1955 - 1981
99.9% nickel
4.54
21.21
1.7
1982 - 1999
75% copper, 25% nickel
4.6
21.2
1.76
2000 - present
94.5% steel, 3.5% copper, 2% nickel plating
3.95
21.2
1.76

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
10
Cent
1858 - 1919
92.5% silver, 7.5% copper
2.32
18.034
?
1920 - 1967
80% silver, 20% copper
2.33
18.034
1.16
1967 - 1968
50% silver, 50% copper
2.33
18.034
1.16
1968 - 1977
99.9% nickel
2.07
18.034
1.16
1978
99.9% nickel
2.07
18.03
1.19
1979 - 1999
99.9% nickel
2.07
18.03
1.22
2000 - present
92% steel, 5.5% copper, 2.5% nickel
1.75
18.03
1.22

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
20
Cent
1858
92.5% silver, 7.5% copper
4.65
23.3
?
 
92% steel, 5.5% copper, 2.5% nickel
 
 
 

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
25
Cent
1870 - 1910
92.5% silver, 7.5% copper
5.81
23.62
?
1910 - 1919
92.5% silver, 7.5% copper
5.83
23.62
?
1920 - 1952
80% silver, 20% copper
5.83
23.62
?
1953 - 1967
80%silver, 20% copper
5.83
23.88
?
1967 - 1968
50% silver, 50% copper
5.05
23.88
?
1968 - 1977
99.9% nickel
5.05
23.88
1.6
1978 - 1999
99.9% nickel
5.05
23.88
1.58
2000 - present
94% steel, 3.8% copper, 2.2% nickel plating
4.4
23.88
1.58

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
50
Cent
1870 - 1919
92.5% silver, 7.5% copper
Victorian Leaves = 11.62
Edwardian Leaves = 11.66
29.72
?
1920 - 1967
80% silver, 20% copper
11.66
29.72
2.0
1968 - 1979
99% nickel (minimum)
8.1
27.13
1.93
1980 - 1999
99% nickel (minimum)
8.1
27.13
1.9
2000 - present
93.15% steel, 4.75% copper, 2.1% nickel plating
6.9
27.13
1.95

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
1
Dollar
1935 - 1967
80% silver, 20% copper
23.3
36.06
2.84
1968 - 1982
99.9% nickel
15.62
32.13
2.62
1982 - 1986
99% nickel (minimum)
15.62
32.13
2.55
1987
91.5% nickel, 8.5% bronze plating
7
26.72
1.95
1988 - 2002
91.5% nickel, 8.5% bronze plating
7
26.5
1.75
2003 - 2012
91.5% nickel, 8.5% bronze plating
7
26.5
1.95
2012 - present
multi-ply brass plated steel
6.27
26.5
1.95

   
Year Range
Composition
Weight (g)
Diameter (mm)
Thickness (mm)
2
Dollar
1996 - 2012
outer ring 99% nickel,
insert 92% copper, 6% aluminum, 2% nickel
7.3
28
1.8
2012 - present
outer ring - multi-ply nickel plated steel,
insert - multi-ply brass plated aluminum bronze
6.92
28
1.75


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