AC BTU & Cooling Power for 25 m² Room (13591 BTU/h — 3.98 kW)

Calculate how many BTU/h, kW and frigories you need to cool a room based on area, ceiling height, solar orientation and insulation.

Room Floor Area (m²)

Ceiling Height (Meters)

Insulation & Sun Exposure

Occupants / Heat Sources

Cooling Capacity (Frig/h)3.425 fg/h

Thermal Cooling Power3.98 kW

BTU/h Rating13.590 BTU/h

Est. Electrical Input1.140 W

Conversion Formulas Between BTU/h, Kilowatts (kW) and Frigories

HVAC Standard (ASHRAE & EN 14511): 1,000 BTU/h equals 0.293 kW of thermal cooling capacity (1 Ton of refrigeration = 12,000 BTU/h = 3.517 kW).

1,000 Frigories/h = 1.163 kW thermal = 3,968.3 BTU/h
Base Cooling Load = (Area m² × Height m × Thermal Factor) + (Occupants × 150 fg)

Room Floor Area	Frigories / hour	Cooling Power (kW)	BTU/h Capacity	Commercial Model Size
12 m² to 18 m²	2.000 - 2.250 fg/h	2,3 - 2,6 kW	9.000 BTU/h	Bedroom Split / 2.5 kW Class
20 m² to 28 m²	3.000 fg/h	3,5 kW	12.000 BTU/h	Standard Room Split / 3.5 kW Class
30 m² to 40 m²	4.300 - 4.500 fg/h	5,0 - 5,2 kW	18.000 BTU/h	Large Living Room Split / 5.0 kW Class
45 m² to 60 m²	6.000 fg/h	7,0 kW	24.000 BTU/h	Commercial / Ducted Unit 7.0 kW Class