Cleave Books Conversion Calculator for Units of PRESSURE & STRESS Type in size . . . select units . . . pascals millibars bars atmospheres inches of water inches of mercury feet of water pounds/sq.inch pounds/sq.foot tons(UK)/sq.foot tons(US)/sq.foot pascals kilopascals megapascals mm of water mm of mercury kg/sq.cm tonnes/sq.m newtons/sq.cm newtons/sq.m kilonewtons/sq.m then press Else Values are shown to . . . 3 4 5 6 7 8 9 significant figures. millibars [= hPa] pascals [Pa] bars kilopascals [kPa] atmospheres**** megapascals [MPa] inches of water *mm of water inches of mercury **mm of mercury feet of water kg / cm2 pound / inch2 [psi] ***tonnes / m2 pounds / foot2 newtons / cm2 tons(UK) / foot2 newtons / m2 tons(US) / foot 2 kilonewtons / m2 * 'mm of water' are same value as kg/m2 ** 'mm of mercury' are also known as 'torrs' *** tonnes/m2 are same value as 'metres of water' **** The 'atmosphere' is absolute. The 'pound', 'kg', 'ton', etc are all units of force NOT mass. Unit shown in red is the SI 'preferred' unit. Very large and very small numbers appear in e-Format and are unspaced. Unvalued zeros on all numbers have been suppressed. Caution NO guarantee as to the accuracy of these values is given. And they should be checked against some other source. A note on Format and Accuracy is available. There are also some Background Notes on Pressure Go to the Dictionary of Units OR the Calculator Menu ©FT2004 Version 1.4