Calculator PK

Room Size

Room Length (m)

Room Width (m)

Room Area: 9 m²

Room Condition

Standard Bedroom or enclosed room with normal heat exposure. Warm Room is fairly hot, often exposed to sunlight, or has poor air circulation. Very Hot Upper floor, lots of glass, or frequently opened doors causing high heat load.

Formula Result

Formula used:

BTU = Length × Width × Heat Factor

3 × 3 × 500 = 4.500 BTU/h

Estimated Cooling Requirement

4.500 BTU/h

View Recommended Product: 1/2 PK

Length 3 m

Width 3 m

Area 9 m²

Heat Factor 500

Total BTU 4.500 BTU/h

BTU to PK Conversion Guide

1/2 PK = ±5.000 BTU/h
3/4 PK = ±7.000 BTU/h
1 PK = ±9.000 BTU/h
1.5 PK = ±12.000 BTU/h
2 PK = ±18.000 BTU/h

For a result like 4,500 BTU/h, the safe recommendation is 1/2 PK.

Additional Suggestion

Since the result is still close to the next threshold, you may consider upgrading to 3/4 PK for faster cooling and to reduce the AC unit’s workload.

AC PK Calculator

Room Size

Room Condition

Formula Result

BTU = Length × Width × Heat Factor

Don’t Wait, Stay Cool With HVAC PRO

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