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United States Coin Information

Published nominal coin weights for freshly Minted US coins can be found at the US Mints web site.
Though not listed here, the tolerance for a single coin is typically +/-3%. Accuracy can be improved beyond +/-3% by averaging the
error from a number of coins. In this case, error goes down by the square root of the number of samples used. Therefore, if the
sample size were 16 nickels, the average error would be 1/4 as or better than +/-1%. This is pretty good, except that some coins
may be worn.

Notes:

The composition of dimes, quarters and half dollars before 1965 is Silver. These weights are not listed.

Denomination	Cent	Nickel	Dime	Quarter	Half Dollar	Dollar	Golden Dollar
Obverse	Lincoln	Jefferson	Roosevelt	Washington	Kennedy	Susan B. Anthony	Sacagawea and Infant Son
Date of Issue	1909	1938	1946	1932	1964	1979,1980,1999	2000
Designed By	V.D. Brenner	Felix Schlag	John R. Sinnock	John Flannagan	Gilroy Roberts	Frank Gasparro	Glenna Goodacre
Designer's Initial	VDB, FG (1959+)	FS	JS	JF	GR	FG	GG
Reverse	Lincoln Memorial	Monticello	Torch, Olive Branch, Oak Branch	Eagle	Presidential Coat of Arms	Apollo 11 Insignia, Eagle	Eagle In Flight
Date of Issue	1959	1938	1946	1932*	1964*	1979,1980,1999	2000
Designed By	Frank Gasparro	Felix Schlag	John R. Sinnock	John Flannagan	Frank Gasparro	Frank Gasparro	Thomas D. Rogers
Composition	95% Copper 5% Zn (<1982) Copper Plated Zinc 2.5% Cu,97.5% Zn	Cupro-Nickel 25% Ni Balance Cu	Cupro-Nickel 8.33% Ni Balance Cu	Cupro-Nickel 8.33% Ni Balance Cu	Cupro-Nickel 8.33% Ni Balance Cu	Cupro-Nickel 12.5% Ni Balance Cu	Manganese-Brass 88.5% Cu,6% Zn 3.5% Mn,2% Ni
Weight	3.100 g (<1983) 2.500 g (>1983)	5.000 g	2.268 g	5.670 g	11.340 g	8.1 g	8.1 g
Diameter	0.750 in. 19.05 mm	0.835 in. 21.21 mm	O.705 in. 17.91 mm	O.955 in. 24.26 mm	1.205 in. 30.61 mm	1.04 in. 26.50 mm	1.043 in. 26.5 mm
Thickness	1.55 mm	1.95 mm	1.35 mm	1.75 mm	2.15 mm	2.00mm	2.00 mm
Edge	Plain	Plain	Reeded	Reeded	Reeded	Reeded	Plain
No. of Reeds	N/A	N/A	118	119	150	133	N/A

Note:

The penny weight is specified as 2.5g +/-0.1g. However, unlike the Nickel which has not changed since 1938, the penny was
changed in 1982 from pure copper to zinc with copper cladding.

European Union Coin Information

The Euro has been standardized across a number of European countries making it a good reference for anyone with access to
these coins. More details may be found on http://www.ecb.int/pub/pdf/other/euroleafletfr.pdf.

     2 Euro  = 8,50 g
     1 Euro  = 7.50 g
    50 cents = 7.80 g
    20 cents = 5.74 g
    10 cents = 4.10 g
     5 cents = 3.92 g
     2 cents = 3.06 g
     1 cent  = 2.30 g

Australian Coin Information

The table below shows the characteristics of circulating coins in Australia. More details may be found on the website of the
Royal Australian Mint.

Denomination	5 Cent	10 Cent	20 Cent	50 Cent	1 Dollar	2 Dollar
Design	Echidna	Lyrebird	Platypus	Coat of Arms	Kangaroo	Aboriginal Tribal Elder
Designed By	Stuart Devlin	Stuart Devlin	Stuart Devlin	Stuart Devlin	Stuart Devlin	Horst Hahne/Ainslie Roberts
Metal	Cupro Nickel (75% Copper, 25% Nickel)	Cupro Nickel (75% Copper, 25% Nickel)	Cupro Nickel (75% Copper, 25% Nickel)	Cupro Nickel (75% Copper, 25% Nickel)	Aluminum-Bronze (92% Copper, 6% Aluminum, 2% Nickel)	Aluminum-Bronze (92% Copper, 6% Aluminum, 2% Nickel)
Weight	2.83 g	5.65 g	11.30 g	15.55 g	9.00 g	6.60 g
Diameter	19.41 mm	23.60 mm	28.52 mm	31.51 mm	25.00 mm	20.50 mm

Note:

The standard coin weight can be changed as the Vas Delta Mass test begins.

Precision Weight Scales

If you are looking for a good quality and not too expensive precision scale from a company with a good reputation, the
DuraScale 100 or DuraScale 50 are good choices. These scales have total weight capacities of 100g or 50g, respectively, and
both are rated at +/-0.01g accuracy.