How to Determine the Split AC which we will use

Sure you wondering how to choose the air conditioner for your room? There are 3 factors to consider that the AC cooling power (BTU / h - British Thermal Units per hour), power (watts), and PK compressor. Most of us are probably more familiar figures PK (Paard Kracht / Horsepower / Horse Power (HP)) on the AC. PK Actually it is the power unit on the AC compressor cooling power instead of AC. But PK is better known than the BTU / hr in the general public. Keep on how to calculate and adjust the AC power conditioner with your room? To work around this, we first conversion PK - BTU / hr - the area (m2).
1 PK = 9000-10000 BTU / h
1 m2 = 600 BTU / h
3 m = 10 ft -> 1 m = 3.33 ft
Cooling Power AC based PK:
AC ½ PK = ± 5.000 BTU / h
AC ¾ PK = ± 7.000 BTU / h
AC 1 PK = ± 9,000 BTU / h
1 ½ PK AC = ± 12,000 BTU / h
AC 2 PK = ± 18,000 BTU / h
Then there is a formula for calculating
(W x H x L x I x E) / 60 = BTU requirement
W = length of the room (in feet)
Space H = height (in feet)
I = value of 10 if space is insulated (located on the bottom floor, or coincide with other space). Value of 18 if space is not insulated (upstairs).
L = width of the room (in feet)
E = the value 16 if the longest wall facing north; value of 17 if facing east; value of 18 if facing south; and a value of 20 if facing west.
For example:
3mx6m sized or space (10 feet x 20 feet), height of the room 3m (10 feet) is not insulated, the long wall facing east. Needs BTU = (10 x 20 x 18 x 10 x 17) / 60 = 10,200 BTU quite alias with AC 1 PK
1 HP = 746 watts