Air Conditioner Size Calculator

Cooling capacity estimate

Estimate a starting cooling capacity from room size, ceiling height, climate, sunlight, and occupants.

Room floor area (m²)

Ceiling height (m)

Climate

Sun exposure

Regular occupants

Estimated cooling capacity3.8 kWApproximate BTU/h13000

Insulation, windows, heat-producing appliances, duct losses, and local design temperatures can materially change professional sizing.

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Enter the room, cost, energy, or household details requested.

The tool calculates a practical estimate instantly.

Review the assumptions before making a purchase or project decision.

Yes. It is free and works without an account.

No. It is a planning estimate. Verify measurements, prices, safety clearances, and professional requirements for your project.

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