DGSI Slope Indicator
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Conversion Table for Units of Pressure

bar

kPa

psi

m H2O

ft H2O

atm

millibar

inHg

1 100 14.504 10.197 33.456 0.98692 1000 29.529
0.010 1 0.14504 0.10197 0.33455 0.0098692 10 0.2953
0.068947 6.8957 1 0.70305 2.3067 0.068046 68.948 2.036
0.098068 9.8068 1.4223 1 3.2808 0.096788 98.068 2.8959
0.029891 2.9891 0.43353 0.3048 1 0.029499 29.891 0.88267
1.0133 101.33 14.696 10.332 33.899 1 1013.3 29.921
0.001 0.1 0.014504 0.010197 0.033455 0.00098692 1 0.02953
0.033864 3.3864 0.49115 0.34566 1.1329 0.033421 33.864 1

Example of use: To convert millibars to psi, find the 1 under the millibar column. The 1 marks the row that contains multipliers to convert millibars to other units. Follow the row to the psi column. The multiplier is 0.014504. Thus you would mulitiply the millibar value by 0.014504 to convert it to psi. Note that factors related to head of water are derived from water at a temperature of 4 degrees C ( 39.2 degrees F).

 

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