Bitte aktiviere JavaScript!
Specifications of International Thread Standards

Conversion TPI to Millimeters

For threads of English or American origin, the pitch is not given in mm (distance between the flanks), here the threads per Inch (1 inch ≙ 25.4 mm) are indicated.
This is how the conversion is made: 25.4 mm / number of threads per Inch.

Advertising:

TPIPitch in InchesPitch mmTPIPitch in InchesPitch mm
1270.007870.200240.041671.058
1200.008330.212220.045451.155
1120.008930.22720.320.049211.250
101.60.009840.250200.050001.270
1000.010000.254190.052631.337
960.010420.265180.055561.411
900.011110.28216.930.059071.500
84.670.011810.300160.062501.588
800.012500.31814.510.071431.814
72.570.013780.350140.071431.814
720.013890.353130.076921.954
640.015630.39712.70.078742.000
63.50.015750.400120.083332.117
600.016670.42311.50.086962.209
56.440.017720.450110.090912.309
560.017860.45410.160.098432.500
50.80.019690.500100.100002.540
480.020830.52990.111112.822
440.022730.5778.470.118062.999
42.330.023620.60080.125003.175
400.025000.6357.260.137743.499
36.290.027560.70070.142863.629
360.027780.7066.350.157484.000
340.029410.74760.166674.233
33.870.029520.7505.640.177304.504
320.031250.7945.080.196855.000
31.750.031500.80050.200005.080
300.033330.8474.620.216455.498
28.220.035440.9004.50.222225.644
280.035710.9074.230.236416.005
270.037040.94140.250006.350
260.038460.97730.333338.467
25.40.039371.00020.5000012.700
TPI   Pitch mm  
=
 

Advertising:

Advertising: