Aircon HP & Electricity Cost Calculator
Use our accurate aircon HP calculator to get thermodynamic recommendations for your room. Calculate your estimated aircon power consumption per hour and see electricity costs with live Meralco rates.
How to compute aircon size in the Philippines?
While a basic rule of thumb is 1 HP for every 12-18 sqm, accurate sizing requires thermodynamic calculation. You must account for room dimensions, heat-generating appliances, occupants, and solar exposure. Our calculator uses Carrier engineering standards to process these variables and output the exact kJ/h and BTU/h required, preventing premature compressor failure.
How much is aircon per hour in the Philippines?
The cost per hour depends on your unit's wattage, inverter efficiency, and your local electricity provider. Using our integrated Meralco rate proxy, a properly sized 1.0 HP inverter aircon maintaining a 24°C setpoint typically costs between ₱4.00 to ₱6.00 per hour, assuming standard residential rates (₱12 to ₱14/kWh). Undersized units will cost significantly more as they cannot idle.
How many sqm for a 1.5 HP aircon?
In a standard Philippine residential setup with standard 2.9m ceilings and minimal direct afternoon sun, a 1.5 HP air conditioner can efficiently cool a room of 18 to 23 square meters. If the room has uninsulated roofing or heavy solar exposure, that coverage area decreases.
What is the average aircon power consumption per hour in the Philippines?
Power consumption depends heavily on the unit's horsepower (HP) and your room's insulation. Drawing on over 25 years of engineering data, a properly sized 1.0 HP inverter aircon typically consumes between 0.20 to 0.40 kWh per hour once it reaches a 24°C setpoint. However, during the initial cooling phase, or if the room lacks insulation and receives direct afternoon sun, the compressor works harder and consumption can spike up to 0.85 kWh.