Conversion Factors 
Atmospheres
- atmospheres x 29.92 = inches of mercury at 0°C
- atmospheres x 1013.25 = millibars
- atmospheres x 760 = millimeters of mercury at 0°C
- atmospheres x 14.7 = pounds/square inch
BTU/foot²
- BTU/foot² min x 1.134 = joules/centimeter² min
- BTU/foot² min x 0.271 = langleys/min
- BTU/foot² min x 189 = watts/meter²
Cubic feet/sec
- cubic feet/sec x 0.02832 = cubic meters/sec
- cubic feet/sec x 0.6463 = million gallons/day
Feet/sec
- feet/sec x 1.097 = kilometers/hour
- feet/sec x 0.592 = knots
- feet/sec x 0.305 = meters/sec
- feet/sec x 0.682 = miles/hour
Footcandles
- footcandles (lumens/square foot) x 10.764 = lux (lumens/square meter)
Inches of mercury
- inches of mercury x 33.864 = millibars
- inches of mercury x 25.4 = millimeters of mercury
- inches of mercury x 3.3864 = kilopascals
- inches of mercury x 0.4912 = pounds/square inch
- inches of mercury x 0.03342 = standard atmospheres
Joules/centimeter² min
- joules/centimeter² min x 0.8821 = BTU/foot² min
- joules/centimeter² min x 0.2389 = langleys/min
- joules/centimeter² min x 166.66 = watts/meter²
Kilometers/hour
- kilometers/hour x 0.911 = feet/sec
- kilometers/hour x 0.540 = knots
- kilometers/hour x 0.278 = meters/sec
- kilometers/hour x 0.621 = miles/hour
Kilopascals
- kilopascals x 0.2953 = inches of mercury at 0°C
- kilopascals x 10 = millibars
- kilopascals x 7.50075 = millimeters of mercury at 0°C
- kilopascals x 0.1450 = pounds/square inch
Knots
- knots x 1.689 = feet/sec
- knots x 1.853 = kilometers/hour
- knots x 0.515 = meters/sec
- knots x 1.152 = miles/hour
Langleys/min
- langleys/min x 697.32 = watts/meter²
- langleys/min x 4.1855 = joules/centimeter² min
- langleys/min x 3.692 = BTU/foot² min
Lumens/square foot
- lumens/square foot (footcandles) x 10.764 = lumens/square meter (lux)
- lumens/square meter (lux) x 0.0929 = lumens/square foot (foot candles)
Meters/sec
- meters/sec x 3.281 = feet/sec
- meters/sec x 3.600 = kilometers/hour
- meters/sec x 1.943 = knots
- meters/sec x 2.237 = miles/hour
Miles/hour
- miles/hour x 1.467 = feet/sec
- miles/hour x 1.609 = kilometers/hour
- miles/hour x 0.868 = knots
- miles/hour x 0.447 = meters/sec
Millibars
- millibars x 0.02953 = inches of mercury
- millibars x 0.0010197 = kilograms/centimeter²
- millibars x 0.100 = kilopascals
- millibars x 0.7500616 = millimeters of mercury
- millibars x 0.014504 = pounds/square inch
- millibars x 0.0009869 = standard atmospheres
Millimeters of mercury
- millimeters of mercury x 0.03937 = inches of mercury
- millimeters of mercury x 0.13332 = kilopascals
- millimeters of mercury x 1.33322 = millibars
- millimeters of mercury x 0.01934 = pounds/square inch
- millimeters of mercury x 0.001316 = standard atmospheres
Million gallons/day
- million gallons/day x 1.54723 = cubic feet/second
Watts/meter²
- watts/meter² x 0.00529 = BTU/foot² min
- watts/meter² x 0.006 = joules/centimeter² min
- watts/meter² x 0.00143 = langleys/min
Go to...
Main Table of Contents
Top of Page