# Free BTU & HP Sizing Calculator | Chill Pro Air-Cond & Refrigeration

> Find the right aircon HP for your room. Our free BTU calculator accounts for room size, sun exposure, ceiling height, and Malaysia

URL: https://acrepair.my/tools/btu-calculator/

Free Tool

# BTU & HP Sizing Calculator

Enter your room details to find the right aircon HP. Adjusted for Malaysian tropical climate with 25% higher cooling factor.

## BTU & HP Sizing Calculator

Tailored for Malaysian tropical climate

Room Length (m)

Room Width (m)

Ceiling Height2.4m (Standard)2.7m3.0m3.5m+

Sun ExposureShaded / North-facingPartial SunFull Sun / West-facing

Room TypeBedroomLiving RoomKitchenOffice / Study

Number of People1 person2 people3–4 people5+ people

Estimate based on standard room conditions. Actual requirements vary by insulation, windows, and local climate. Consult our technicians for precise sizing.

## How the BTU Calculator Works

This calculator uses a standard formula adjusted for Malaysia's tropical climate. We apply a 25% tropical climate factor on top of the base BTU/m² rate (500 BTU per m²), which accounts for the consistently high humidity and heat load in the Klang Valley year-round.

### What the Adjustments Mean

-   **Ceiling height:** Rooms taller than 2.5m need 10% more cooling capacity to circulate conditioned air through a larger volume.
-   **Sun exposure:** West-facing or full-sun rooms receive more radiant heat and need 10% more BTU. North-facing or shaded rooms can be sized 10% lower.
-   **Kitchen:** An additional 4,000 BTU accounts for heat generated by cooking appliances.
-   **Occupants:** Each person generates approximately 600 BTU/hr of body heat.

### HP vs BTU — Quick Reference

| HP Rating | BTU Range | Typical Room Size |
| --- | --- | --- |
| 1.0 HP | ~9,000 BTU | Up to 10–12 m² |
| 1.5 HP | ~12,000 BTU | 12–18 m² |
| 2.0 HP | ~18,000 BTU | 18–25 m² |
| 2.5 HP | ~24,000 BTU | 25–35 m² |

Note: These are estimates. Actual requirements vary based on insulation quality, window size, number of electronic appliances, and specific local conditions. Our technicians offer free on-site HP surveys across Petaling Jaya.

### Need a Free On-Site Survey?

Our technicians visit your home across Petaling Jaya — no charge for the sizing survey when you proceed with installation.

WhatsApp for Free Survey

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