Conversion Tables

Length
mftin
1 m1.0003.28139.370
1 ft (foot)0.3051.00012.000
1 in (inch) 0.0250.0831.000

 

Mass
kglboz
1 kg12.2035.27
1 lb (pound) 0.45116
1 oz (ounce)0.030.061
Temperature
K°C°F
1 Kelvin1-272.15-457.87
1 °Celcius274.14133.8
1 °Fahrenheit 255.93-17.221
Suction rate
m3/sl/sm3/hl/min
m3/s11.0003,60060,000
l/s10-313.660
m3/h2.78 x 10-40.278116.67
l/min1.67 x 10-51.67 x 10-20,061

 

Pressure
barN/cm2kPambar
1 bar110100103
1 N/cm2 0.1110100
1 kPa0.010.1110
1 mbar10-30.010.11
Volume
m3cm3l
m311 x 1061,000
cm31 x 10-611 x 10-3
l1 x 10-31,0001
Vacuum ranges
Absolute pressure in mbarMean free path of atoms*
Low vacuum1,000 - 168 nm - 0,1 mm
Medium vacuum1 - 10-30.1 mm - 100 mm
High vacuum10-3 - 10-7100 mm - 1 km
Ultra high vacuum< 10-7> 1 km

*The number density of molecules for a temperature of 20 °C

 

Thread
Thread designationExternal diameter in mmBead wire diameter in mmPitch in mm
Metric ISO thread
M33.002.50.50
M44.003.20.70
M55.004.10.80
M66.004.91.00
M88.006.61.25
M1010.008.41.50
M1212.0010.11.75
Metric ISO fine thread
M14x1.514.0012.51.50
M16x116.0014.91.00
M20x1.520.0018.41.50

M30x1.5

30.0028.41.50
Pipe thread
G1/89.738.50.91
G1/413.1611.41.34
G3/816.6614.91.34
G1/221.0018.61.81
G3/426.4424.11.81
G133.2530.32.31
G11/441.9139.02.31
G11/247.8044.82.31
G259.6156.62.31
G21/275.1872.22.31