METRIC TO IMPERIAL CONVERSION CHART

SI Unit

System International

Conversion

Factor

Imperial

Equivalent

Conversion

Factor

SI Unit

System International

Pressure

Bar

x 14.5

PSI

x 0.069

Bar

Bar

x 14.5

lbf.in2

x 0.069

Bar

kPA

x 0.145

PSI

x 6.89

Bar

mPA

x 145

PSI

x .00689

Bar

Volume

cm3

x 0.061

inch3

x 16.4

cm3

litre

x 61

inch3

x 0.016

litre

litre

x 0.22

gallon

x 4.54

litre

m3

x 1.3

yard3

x 0.76

m3

Area

mm2

x 0.00155

inch2

x 645

cm3

cm2

x 0.155

inch2

x 6.45

litre

m2

x 10.8

foot2

x 0.0929

litre

Length

mm

x 0.03937

inch

x 25.4

mm

cm

x 0.3937

inch

x 2.54

cm

m

x 3.28

foot

x 0.305

m

Force

N

x 0.225

pound

x 4.45

N

kN

x 225

pound

x 0.00445

kN

Torque

Nm

x 0.738

lbf.ft

x 1.356

Nm

Nm

x 8.9

lbf.in

x 0.113

Nm

kgf.m

x 7.2345

lbf.ft

x 0.1382

kgf.m

Mass

g

x 0.035

ounce

x 28.3

g

kg

x 2.2046

pound

x 0.4536

kg

t

x 1.1

ton [short]

x 0.907

t

Flow

cm3/min

x 0.61

inch3/min

x 16.4

cm3/min

litres/min

x .2642

gallon/min

x 3.785

litres/min

Power

kw

x 1.34

hp

x 0.746

kw

kw

x 0.948

Btu/s

x 1.055

kw

w

x 0.74

ft lb/s

x 1.36

w

[°F - 32] / 1.8 =

°C

To calculate Fahrenheit to Celcius :

[°C x 1.8] + 32

= °F