Metric Conversions of Mirror Sizes

Mirror Diameters

InchesMillimeters
376.2
4.25101.6
6152.4
8203.2
10254
12.5317.5
13.1332.74
14.5368.3
15381
16406.4
18457.2
20508
22558.8
24609.6
26660.4
28711.2
30762
32812.8
34863.6
36914.4
38965.2
401016

Mirror Thickness

InchesMillimeters
0.375 (3/8)9.525
0.512.7
0.625 (5/8)15.875
0.717.78
0.75 (3/4)19.05
0.875 (7/8)22.225
0.820.32
125.4
1.127.94
1.333.02
1.3534.29
1.375 (1 3/8)34.925
1.538.1
1.625 (1 5/8)41.275
1.8546.99
1.875 (1 7/8)47.625
2.125 (2 1/8)53.975
2.2557.15
2.3559.69
2.676 (2 3/8)67.9704
376.2
3.2582.55
3.588.9
4101.6
4.35110.49
4.5114.3
4.6116.84

Secondary Diameters

InchesMillimeters
0.7517.78
1.0025.4
1.3033.02
1.5238.608
1.8346.482
2.1454.356
2.6066.04
3.1078.74
3.5088.9
4.00101.6
4.50114.3

1 inch = 25.4 mm, 1 inch = 0.0254 meter 1 mm = 0.03937 inch , 1 meter = 39.37 inches

The light wavelength 500 nM (500 x 10-9M, 5 x 10-7M) is very near the peak sensitivity of human, dark adapted vision.
500 nM = 500 x 10-6 mm = 5 x 10-4 mm = 0.0005 mm = 1.968498 x 10 -5 inch.

A very usefull, free unit conversion program for Windows 95 and higher is Convert found at http://www.joshmadison.com/software

2002 Mark D. Holm