Tuumakoot

Tuumat on ilmoitettu murtolukuina eli 1" on jaettu osiin. Tällöin yksi tuuma on esimerkiksi 64/64", 32/32" tai 4/4". Tuuma on millimetreinä 25.4mm, jolloin 1/2" on puolet tuumasta eli 12.7mm.

Yksi tuuma on 25.4mm, eli jos haluat laskea paljonko esim. 3/64" on milleinä, voit laskea sen seuraavasti:

25.4mm : 64 = 0.3968 x 3 = 1.1906mm

Yleisimpien kokojen taulukko:

Tuumakoko murtolukuna = Tuumakoko desimaaleina = Millikoko

1/32"    =  0.0313"  = 0.7938mm
3/64"    =  0.0469"  = 1.1906mm
1/16"    =  0.0625"  = 1.5875mm
5/64"    =  0.0781"  = 1.9844mm
3/32"    =  0.0938"  =  2.3813mm
7/64"    =  0.1094"  =  2.7781mm
1/8"      =  0.1250"  =  3.1750mm
9/64"    =  0.1406"  =  3.5719mm
5/32"    =  0.1563"  =  3.9688mm
11/64"  =  0.1719"  =  4.3656mm
3/16"    =  0.1875"  =  4.7625mm
13/64"  =  0.2031"  =  5.1594mm
5/64"    =  0.2344"  =  5.9531mm
¼"       =   0.2500"  =  6.3500mm
17/64"  =  0.2656"  =  6.7469mm
5/16"    =  0.3125"  =  7.9375mm
3/8"      =  0.3750"  =  9.5250mm
13/32"  =  0.4063"  = 10.3188mm
7/16"    =  0.4375"  = 11.1125mm
15/32"  =  0.4688"  = 11.9063mm
½"       =   0.5000"  =  12.7000mm
17/32"  =  0.5313"  = 13.4938mm
9/16"    =  0.5625"  = 14.2875mm
19/32"  =  0.5938"  = 15.0813mm
5/8"      =  0.6250"  = 15.8750mm
11/16"  =  0.6875"  = 17.4625mm
¾"       =   0.7500"  = 19.0500mm
13/16"  =  0.8125"  =  20.6375mm
7/8"      =  0.8750"  =  22.2250mm
15/16"  =  0.9375"  =  23.8125mm
1"        =   1.0000"  =  25.4000mm
1 ¼"     =  1.2500"  =  31.7500mm
1 ½"     =  1.5000"  =  38.1000mm
1 ¾"     =  1.7500"  =  44.4500mm
2"         =  2.0000"  =  50.8000mm
2 ¼"     =  2.2500"  =  57.1500mm
2 ½"     =  2.5000"  =  63.5000mm
2 ¾"     =  2.7500"  =  69.8500mm
3"         =  3.0000"  =  76.2000mm
3 ½"     =  3.5000"  =  88.9000mm