# Free BTU Calculator — Find the Right Aircon HP | PG1 Aircond

> Calculate exactly how many BTUs you need to cool your room in Penang

URL: https://aircondservicepenang.com/tools/btu-calculator/

Free Tool

# BTU Calculator for Penang Homes

Enter your room dimensions and we'll calculate the BTU needed — including a 25% adjustment for Penang's year-round tropical heat.

## BTU Calculator

Find the right aircon HP for your room

Room Length (m)

Room Width (m)

Room area: **12.0 m²**

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

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

Room TypeBedroomLiving RoomKitchenOffice / Study

Number of People Normally in Room1 person2 people3–4 people5+ people

#### Get a Professional Installation Quote

Based on your BTU calculation, our technicians can provide an accurate quote including installation.

Or message us on WhatsApp

[https://wa.me/60175523619?text=Hi%2C%20I%20used%20your%20BTU%20calculator%20and%20want%20to%20discuss%20aircon%20sizing%20for%20my%20room.%20Can%20you%20help%3F →](https://wa.me/60175523619?text=Hi%2C%20I%20used%20your%20BTU%20calculator%20and%20want%20to%20discuss%20aircon%20sizing%20for%20my%20room.%20Can%20you%20help%3F)

## Why BTU matters in Penang

Penang averages 32°C with high humidity. Undersizing your aircon means it runs constantly and never reaches your set temperature — wasting electricity and wearing out the compressor faster. Oversizing causes short-cycling, poor dehumidification, and higher upfront cost.

## HP to BTU conversion

| HP | BTU | Room size (m²) |
| --- | --- | --- |
| 1.0 HP | 9,000 BTU | ~12–14 m² |
| 1.5 HP | 12,000 BTU | ~18–22 m² |
| 2.0 HP | 18,000 BTU | ~25–30 m² |
| 2.5 HP | 24,000 BTU | ~35–40 m² |

Approximate ranges for Penang's tropical climate. Use the calculator for accurate room-specific sizing.

## Related tools

-   → Energy Cost Estimator
    
    [/tools/energy-cost-estimator/ →](/tools/energy-cost-estimator/)
    
    Estimate your monthly TNB bill by unit size.
    
-   → Aircon Service Finder
    
    [/tools/hvac-service-finder/ →](/tools/hvac-service-finder/)
    
    Find out whether you need a wash, repair, or new unit.
    

## Common questions about aircon sizing

How do I measure my room correctly?

Measure the longest wall (length) and the perpendicular wall (width) of the room in metres. For L-shaped rooms, calculate each section separately and add the results, then choose one unit or multiple units accordingly.

Does ceiling height really affect BTU?

Yes. A higher ceiling means more cubic volume to cool. We add 10% capacity for ceilings above 2.5m. For very high ceilings (3.5m+) in commercial spaces, consider a ceiling cassette unit instead.

Why is there a tropical climate adjustment?

Standard BTU tables are based on temperate climates (Europe, North America). In Penang's heat and humidity, you need about 25% more cooling capacity to achieve the same comfort level — this adjustment is built into our calculator.

Should I get one big unit or two smaller ones?

For connected rooms (living-dining), two smaller units give more zoned control. For a single room above 30 m², a ceiling cassette or two wall-mounted units often performs better than one oversized unit.

## Want us to size and install the right unit?

Our technicians assess the room in person and recommend the right HP, brand, and type — not just the cheapest option.

WhatsApp for a Quote

[https://wa.me/60175523619?text=Hi%20PG1%20Aircond%2C%20I%20need%20a%20quote. →](https://wa.me/60175523619?text=Hi%20PG1%20Aircond%2C%20I%20need%20a%20quote.)

 

Call 017-552 3619

[tel:+60175523619 →](tel:+60175523619)