Common Inches and Millimeter Conversions

People all over the world are learning about, experimenting with and building aquaponics systems. I’ve read articles that were listed as inches and millimeters for pipe fittings. This is probably a good conversion to have available.

Inches Millimeters
1/4″ 6.35
3/8″ 9.525
1/2″ 12.7
5/8″ 15.875
3/4″ 19.05
1″ 25.4
1.5″ 38.1
2″ 50.8
2.5″ 63.5
3″ 76.2
4.3″ 110
12″ 304.8

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