Important HVAC Unit Conversion

Temperature:

1° = 33.8° F

Formula - (0°C × 9/5) + 32 = 32° F

Example: 18°C is equal to ___ Fahrenheit ?

(18°C × 9/5) + 32= 32.4 + 32 = 64.4°F 

Distance:

1 Mt = 3.281 Ft

        = 100 cm

        = 1000 mm

        = 39 inch

1 inch = 2.54 cm

           = 25.4 mm

1 Feet = 12 inch

Velocity:

 1 FPM = 0.005 M/s

             = 0.0167 FPS

             = 101325 Pa

Pressure:

1 ATM = 1.013 Bar

             = 14.7 Psi

             = 760 Torr

Area:

1 Sq mt. = 10.76 Sq. Ft

               = 1550 Sq inch

 1 Sq ft = 144 Sq inch

Volume:

 1 Lit = 1000 Ml

          = 0.001 Cu.Mt

          = 0.0353 Cu.Inch

          = 0.2199 Gallon

1 GPM = 3.78 LPM

Area:

 1 Sq Mt = 10.76 Sq Ft

               = 1550 Sq. inch

1 Sq Ft = 144 Sq. Inch

Air flow:

1 CFM = 1.7 CMH

            = 0.47 LPS

            = 0.00048 cube meter/s

1 LPS = 2.119 CFM

1 Cube meter/s = 2118.87 CFM

TR:

1TR = 3.514 KW

        = 12000 BTU/ hr

        = 3023 Kcal/hr

        = 200 Btu/min

        = 1.25 HP

1 HP = 0.8 TR

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