Pressure
Leak and Flow Rates
Equivalent Leak Rates
Pumping Speed
Outgassing Rates
Distance
Volume
Weight
Force
Torque
Pressure
Enter Unit Value
-Select-
Atm
Torr
mTorr
Bar
mBar
mmHg
micron Hg
inHg
mmH20
inH20
Nm-2(Pa)
kPa
psi(lb/in2)
kg/cm2
Bar
Atm
mBar
Torr
mmHg
mTorr
micron Hg
inHg
mmH
2
0
inH
2
0
N/m
2
(Pa)
psi (lb/in
2
)
kPa
% vacuum
kg/cm
2
Leak and Flow Rates
Enter Unit Value
-Select-
mbar x L/s
cm3/s
std cm3/m (sccm)
Torr x L/s
Pa x L/s
Pa x m3/s
mbar x L/s
Torr x L/s
cm
3
/s
Pa x L/s
std cm
3
/m (sccm) *
Pa x m
3
/s
* Standard Temperature at 0 °C (273.15
K
, 32 °F) and an
absolute pressure
of 100 kPa (14.504
psi
, 0.986 atm
Equivalent Leak Rates for Freon, Helium, and Air
Enter Unit Value
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std.atm.cc/s (air)
kg/h (air)
mg/s (air)
oz/year (air)
g/year (Freon R12)
oz/year (Freon R12)
oz/year (Freon R134)
std.atm.cc/s (helium)
std.atm.cc/s (air)
*
oz/year (air)
kg/h (air)
g/year (Freon R12)
mg/s (air)
oz/year (Freon R12)
std.atm.cc/s (helium)
*
oz/year (Freon R134)
* Standard Temperature and Pressure of 0 °C (273.15
K
, 32 °F) and an
absolute pressure
of 100
kPa
(14.504
psi
, 0.986 atm)
Pumping Speed
Enter Unit Value
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l/s
l/min
ft3/min
m3/hr
m3/min
l/s
ft
3
/min (cfm)
l/min
m
3
/min
m
3
/hr
Outgassing Rates
Enter Unit Value
-Select-
mbar x L/(cm2 x s)
Pa x L/(m2 x s)
Pa x m3/(m2 x s)
W/m2
Torr x L/(cm2 x s)
mbar x L/(cm
2
x s)
W/m
2
Pa x L/(m
2
x s)
Torr x L/(cm
2
x s)
Pa x m
3
/(m
2
x s)
Distance
Enter Unit Value
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foot
inch
yard
meter
centimeter
millimeter
micron
angstrom
kilometer
mile
Meter
Foot
Centimeter
Inch
Millimeter
Yard
Micron (µm)
Mile
Angstrom
Kilometer
Volume
Enter Unit Value
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in3
ft3
L
cm3
m3
quart
fl. oz.
pint
US gallon
yd3
L
in
3
cm
3
ft
3
m
3
quart
fl. oz.
pint
US gallon
yd
3
Weight
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lb
oz
g
kg
ton (short)
ton (metric)
ton (long)
g
lb
kg
oz
ton (metric)
ton (short, 2000 lbs)
ton (long, 2240 lbs)
Force
Enter Unit Value
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gf
lbf
ozf
N
kgf
dyne
g
f
lb
f
N
oz
f
kg
f
dyne
Torque
Enter Unit Value
-Select-
lbf x ft
ozf x in
N x m
kgf x m
N x cm
dyne x cm
kgf x cm
lbf x in
N x m
lb
f
x ft
kg
f
x m
oz
f
x in
N x cm
lb
f
x in
dyne x cm
kg
f
x cm
Although we prepared these conversions carefully, their accuracy is not guaranteed. Please use with discretion.