1. What is an Aircon HP to Sqm Calculator?

Definition: This calculator estimates the required air conditioner horsepower (HP) based on room area in square meters and the COP (Coefficient of Performance) of the unit.

Purpose: It helps determine the appropriate air conditioner size needed to effectively cool a given space.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( HP \) — Required air conditioner horsepower
• \( A_{room} \) — Room area in square meters
• \( COP \) — Coefficient of Performance (typically 3.5 for modern units)
• 44.6 — Conversion factor from m² to BTU/hr
• 2545 — Conversion factor from BTU/hr to HP

Explanation: The room area is converted to cooling capacity needs, then adjusted by the unit's efficiency to determine required horsepower.

3. Importance of Proper Aircon Sizing

Details: Correct air conditioner sizing ensures energy efficiency, proper cooling, and prevents short-cycling which can reduce equipment lifespan.

4. Using the Calculator

Tips: Enter the room area in square meters and the COP (default 3.5 for most modern units). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is COP in air conditioning?
A: COP (Coefficient of Performance) measures cooling efficiency - higher values mean more efficient units.

Q2: What's a typical COP value?
A: Modern units typically have COP values between 3.0-4.0. Check your unit's specifications.

Q3: How does room height affect the calculation?
A: This calculator assumes standard ceiling heights. For higher ceilings, multiply area by height factor.

Q4: What about rooms with lots of windows or poor insulation?
A: For sun-facing rooms or poor insulation, consider adding 10-20% to the calculated HP.

Q5: How do I convert HP to other cooling capacity units?
A: 1 HP ≈ 9000 BTU/hr ≈ 2.64 kW. Use our unit conversion tools for precise conversions.