Data and Conversion Factors Page link to an Internet Website

Note: while some of the data and conversion factors on this page might not be exact, the information falls well within the error range needed for calculations in this class.

The following information is found on this page:

 

Composition of Dry Air at Sea Level

Component     Mole Per Cent     Molar Mass

N2            78.084             28.013

O2            20.948             31.998

Ar             0.934             29.948

CO2            0.0314            44.010

Ne             0.001818          20.183

He             0.000524           4.003

CH4            0.002             16.043

Kr             0.000114           83.80

H2             0.00005            2.016

N2O            0.00005           44.013

Xe             0.0000087         131.30


 

 

Vapor Pressure Data for H2O

Convert pressure to atmospheres by dividing kPa by 101.325

Convert pressure to mm Hg by dividing kPa by 101.325, then multiplying by 760


Temperature     kPa             Temperature     kPa

0               0.61129         50              12.344

1               0.65716         51              12.97

2               0.70605         52              13.623

3               0.75813         53              14.303

4               0.81359         54              15.012

5               0.8726          55              15.752

6               0.93537         56              16.522  

7               1.0021          57              17.324

8               1.073           58              18.159

9               1.1482          59              19.028  

10              1.2281          60              19.932  

11              1.3129          61              20.873

12              1.4027          62              21.851

13              1.4979          63              22.868

14              1.5988          64              23.925

15              1.7056          65              25.022

16              1.8185          66              26.163

17              1.938           67              27.347

18              2.0644          68              28.576

19              2.1978          69              29.852

20              2.3388          70              31.176

21              2.4877          71              32.549

22              2.6447          72              33.972

23              2.8104          73              35.448

24              2.985           74              36.978

25              3.169           75              38.563

26              3.3629          76              40.205

27              3.567           77              41.905

28              3.7818          78              43.665

29              4.0078          79              45.487

30              4.2455          80              47.373

31              4.4953          81              49.324

32              4.7578          82              51.342

33              5.0335          83              53.428

34              5.3229          84              55.585

35              5.6267          85              57.815

36              5.9453          86              60.119

37              6.2795          87              62.499

38              6.6398          88              64.958

39              6.9969          89              67.496

40              7.3814          90              70.117

41              7.784           91              72.823

42              8.2054          92              75.614

43              8.6463          93              78.494

44              9.1075          94              81.465

45              9.5895          95              84.529

46              10.094          96              87.688

47              10.62           97              90.945

48              11.171          98              94.301

49              11.745          99              97.759


 

 

Gas Pressure Conversions

From To Multiply by:
Pascals (Pa) pounds per square inch (psi) 0.00015
  pounds per square foot 0.021
  newtons per square meter 1
Pounds per square inch (psi) atmospheres 0.068
  pounds per square foot 144
  Pascals 6895
  foot of water 60º F 2.3
Atmospheres psi 14.7
  lb per ft² 2117
  Pa 101325
inch of water 60º F psi 0.036
  lb per ft² 5.2
  Pa 248.8
foot of water 60º F psi 0.4331
  lb per ft² 62.36
  Pa 2986


 

 

More Conversion Factors

length | area | volume | force | mass | temp | power | more

 

Length Conversion Factors

To convert from              to                      multiply by 

mile                    kilometer (km)          1.61       

inch (in)               millimeter (mm)         25.4

inch (in)               centimeter (cm)         2.54  

inch (in)               meter (m)               0.025       

foot (ft)               meter (m)               0.305       

yard (yd)               meter (m)               0.914


 

 

Area Conversion Factors

To convert from              to                      multiply by 

square foot (ft2)     square meter (m2)               0.093    

square inch (in2)     square meter (m2)              0.00065    

square yard (yd2)     square meter (m2)              0.836    

acre (ac)               hectare (ha)                 0.4047


 

 

Volume Conversion Factors

To convert from              to                      multiply by 

cubic inch (in3)      cubic meter (m3)                0.0000164     

cubic foot (ft3)      cubic meter (m3)                 0.028      

cubic yard (yd3)      cubic meter (m3)                0.765       

gallon (gal)            liter                        4.546   

gallon (gal)            cubic meter (m3)              0.0038      

fluid ounce (fl oz)     milliliters (ml)             29.57        

fluid ounce (fl oz)     cubic meter (m3)             0.00003


 

 

Force Conversion Factors

To convert from              to                      multiply by

pound (lb)              kilogram (kg)                  0.454

pound (lb)              newton (N)                     4.45


 

 

Mass Conversion Factors

To convert from              to                      multiply by

Mass (weight) 

        pound (lb)            kilogram (kg)             0.4536

        ton, 2000 lb          kilogram (kg)             907.185

        grain                 kilogram (kg)             0.000065

        

Mass per volume (density) 

        pound per cubic       kilogram per cubic        16.02

          foot (pcf)           meter (kg/m3)

        pound per cubic       kilogram per cubic        0.593

          yard (lb/cu yd)      meter (kg/m3)


 

 

Temperature Conversions

Temperature

To convert from                       to                      use equation

        degree Fahrenheit (F)     degree Celsius (C)            c=(F-32)/1.8

        degree Fahrenheit (F)     kelvin (K)                    k = (F+459.7)/1.8

        kelvin (K)                degree Celsius (C)            c=k-273.15

Temperature Conversion Factors

Energy and heat To convert from to multiply by British thermal joule (J) 1055.06 unit(Btu) calorie (cal) joule (J) 4.187 kilowatt-hour (kwh) joule (J) 3,600,000 British thermal unit watt (W) 0.2931 per hour (Btu/hr)


 

 

Power Conversion Factors

To convert from                   to                      multiply by

Power

        horsepower (hp)           watt (W)                  745.69

           (550 ft-lb/sec)

Velocity

         mile per hour (mph)      kilometer per hour(km/hr) 1.61

         mile per hour (mph)      meter per second (m/s)    0.45




 

 

More Useful Conversion Factors



Quantity            From English           To Metric             Multiply

                      Units                  Units                 by



Length                mile                    km                 1.609

                      yard                    m                  0.914

                      foot                    m                  0.305

                      inch                    mm                 25.4



Area               square mile                km2               2.59

                      acre                    m2                4047

                      acre                  hectare              0.405

                   square yard                m2                0.836

                   square foot                m2                0.093

                   square inch                mm2               645.2



Volume              acre foot                 m3                1 23

                   cubic yard                 m3                0.765

                   cubic foot                 m3                0.028

                   cubic foot            L (1000 cm3)           28.32

                   gallon              L (1000 cm3)           3.785



Mass                   lb                      kg                0.454

                  



Force                  lb                       N                4.45

                       




Moment of mass          lb . ft               kg . m           0.138



Moment of inertia       lb . ft2              kg . m2         0.042



Power                ton (refrig)               kW             3.517

                        Btu/s                   kW             1.054

                     hp (electric)               W             745.7

                        Btu/h                    W             0.2931



Velocity, speed          ft/s                   m/s          0.305



Acceleration             f/s2                 m/s2           0.305



Momentum              lb . ft/sec            kg . m/s          0.138

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Note:

One U.S. gallon of water weighs 8.34 pounds (U.S.) at 60 degrees F.

One cubic foot of water weighs 62.4 pounds (U.S.).

One milliliter of water has a mass of 1 gram and has a volume of one cubic centimeter.

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