Units Conversion

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Hydraulic Formulas - Unit Conversions

Most widely used conversion factors between English and metric units (SIin Glossary Link Hydraulics.

 

Hydraulic UnitsNt = Newton

Atm = Glossary Link Atmosphere

cm Hg = cm Mercury

In Hg = in Mercury

HP = Glossary Link Horse Power

Kw = KiloWatts

oF Degres = Degres Farenheith

oC Degres = Degres Centigrades

 


LENGHT




1 mm

= 0.0394”


1”

= 25.4 mm

1 cm

= 0.394”


1”

= 2.54 cm

1 m

= 39.4”


1”

= 0.0254 m

1 ft

= 12”


1”

= 0.083 ft







AREA




1 mm2

= 0.00155 in2


1 in2

= 645.2 mm2

1 cm2

= 0.155 in2


1 in2

= 6.452 cm2

1 m2

= 1552.4 in2


1 in2

= 0.000645 m2

1 ft2

= 144 in2


1 in2

= 0.00694 ft2







Glossary Link VOLUME




1 mm3

= 0.0000612 in3


1 in3

= 16387.06 mm3

1 cm3

= .0612 in3


1 in3

= 16.38 cm3

1 m3

= 61163 in3


1 in3

= 0.00001638 m3

1 litre

= 1000 cm3


1 cm3

= 0.001 litres

1 gal

= 3.785 litres


1 litre

= 0.264 gals

1 gal

= 231 in3


1 in3

= 0.00432 gals







Glossary Link FORCE




1 Kg

= 2.204 Lbs


1 Lbs

= 0.454 Kgs

1 Ton

= 2204 Lbs


1 Lbs

= 0.000453 Tons

1 Kg

= 9.8 Nt


1 Nt

= 0.102 Kgs

1 Nt

= 0.225 Lbs


1 Lbs

= 4.44 Nt



Glossary Link PRESSURE




1 kg/mm2

= 1422 psi


1 psi

= 0.000703 kg/mm2

1 kg/cm2

= 14.22 psi


1 psi

= 0.0703 kg/cm2

1 Atm

= 14.7 psi


1 psi

= 0.68 Atm

1 Glossary Link Bar

= 14.5 psi


1 psi

= 0.69 Glossary Link Bar

1 Mpascal

= 145 psi


1 psi

= 0.00689 Mpascal

1 pascal

= 0.000145 psi


1 psi

= 6886 pascal



Glossary Link VACUUM (NEGATIVE PRESSURE)


1 Atm

= 76 cm Hg


1 cm Hg

= 0.0131 Atm

1 Atm

= 29.92 in Hg


1 in Hg

= 0.0334 Atm

1 cm Hg

= 0.193 psi


1 psi

= 5.17 cm Hg

1 in Hg

= 0.4912 psi


1 psi

= 2.036 in Hg







SPEED




1cm/sec

= 0.394 in/sec


1 in/sec

= 2.54 cm/sec

1 m/sec

= 3.283 pies/sec


1 pie/sec

= 0.304 m/sec

1 Km/hour

= 0.6214 miles/hour


1 mile/hour

= 1.613 km/hour







POWER




1 Kw

= 1.341 HP


1 HP

= 0.746 Kw

1 BTU/min

= 0.0236 HP


1 HP

= 42.44 BTU/min

1 BTU/min

= 0.0176 Kw


1 Kw

= 56.82 BTU/min







TEMPERATURE




o F

= 1.8 oC + 32


o C

= (oF - 32)/1.8

 

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