<P> 1 inAq ≈ 0.036 psi, or 27.7 inAq ≈ 1 psi . </P> <Dl> <Dd> <Table> <Tr> <Td> 1 inH O </Td> <Td> = 248.84 pascals (60 ° F) </Td> </Tr> <Tr> <Td> </Td> <Td> = 2.4884 mbar or hectopascals (60 ° F) </Td> </Tr> <Tr> <Td> = 2.54 cmH O (4 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0024558598569 atm </Td> </Tr> <Tr> <Td> ≈ 1.86645349124 torr or mmHg (0 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0734824209149 inHg (0 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0360911906567 psi </Td> </Tr> </Table> </Dd> </Dl> <Dd> <Table> <Tr> <Td> 1 inH O </Td> <Td> = 248.84 pascals (60 ° F) </Td> </Tr> <Tr> <Td> </Td> <Td> = 2.4884 mbar or hectopascals (60 ° F) </Td> </Tr> <Tr> <Td> = 2.54 cmH O (4 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0024558598569 atm </Td> </Tr> <Tr> <Td> ≈ 1.86645349124 torr or mmHg (0 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0734824209149 inHg (0 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0360911906567 psi </Td> </Tr> </Table> </Dd> <Table> <Tr> <Td> 1 inH O </Td> <Td> = 248.84 pascals (60 ° F) </Td> </Tr> <Tr> <Td> </Td> <Td> = 2.4884 mbar or hectopascals (60 ° F) </Td> </Tr> <Tr> <Td> = 2.54 cmH O (4 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0024558598569 atm </Td> </Tr> <Tr> <Td> ≈ 1.86645349124 torr or mmHg (0 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0734824209149 inHg (0 ° C) </Td> </Tr> <Tr> <Td> ≈ 0.0360911906567 psi </Td> </Tr> </Table>

Inches of mercury to inches of water conversion