standard pipe diameters (D) used in calculations

IP UNITS
Pipe dia., inch Pipe dia., inch Pipe dia., inch
0.50 8 48
0.75 10 54
1 12 60
1.25 14 72
1.5 16 84
2 18 96
2.5 20 108
3 24 120
4 30 144
5 36 168
6 42 192
     
     
SI UNITS
Pipe dia., mm Pipe dia., mm Pipe dia., mm
6 * 125 1050
8 * 150 1200
10 * 200 1350
15 250 1500
20 200 1800
25 350 2100
32 400 2400
40 450 2700
50 500 3000
65 600 3600
80 750 4200
100 900 4800
* THESE PIPE SIZES ARE NOT INCLUDED IN CALCULATORS