CONVERSION TABLES
(SI units to US units & US units to SI units)
PRESSURE
SI units to US units
Enter SI units in left column and click outside to get US units in right column.
Name
Symbol
SI unit
Multiplying Factor
US unit
Symbol
Name
pascal (newtons per square meter)
Pa(N/m
2
)
1.4504E-4
lbf/in
2
pounds (force) per square inch
pascal (newtons per square meter)
Pa(N/m
2
)
2.0885E-2
lbf/ft
2
pounds (force) per square foot
pascal (newtons per square meter)
Pa(N/m
2
)
2.9613E-4
inHg
inches of mercury (60
o
F)
pascal (newtons per square meter)
Pa(N/m
2
)
4.0187E-3
inH
2
O
inches of water (60
o
F)
kilopascal (kilonewtons per square meter)
kPa(kN/m
2
)
0.1450
lbf/in
2
pounds (force) per square inch
kilopascal (kilonewtons per square meter)
kPa(kN/m
2
)
0.0099
atm
atmosphere (standard)
US units to SI units
Enter US units in left column and click outside to get SI units in right column.
Name
Symbol
US unit
Multiplying Factor
SI unit
Symbol
Name
pounds (force) per square inch
lbf/in
2
6.8948E3
Pa(N/m
2
)
pascal (newtons per square meter)
pounds (force) per square foot
lbf/ft
2
47.8803
Pa(N/m
2
)
pascal (newtons per square meter)
inches of mercury (60
o
F)
inHg
3.3768E3
Pa(N/m
2
)
pascal (newtons per square meter)
inches of water (60
o
F)
inH
2
O
2.4884E2
Pa(N/m
2
)
pascal (newtons per square meter)
pounds (force) per square inch
lbf/in
2
6.8948
kPa(kN/m
2
)
kilopascal (kilonewtons per square meter)
atmosphere (standard)
atm
1.0133E2
kPa(kN/m
2
)
kilopascal (kilonewtons per square meter)
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Dr. K. Jayaraman
.
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.
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