BTU and cooling capacity calculator
Estimate cooling capacity from your room volume, a thermal assumption and sun exposure.
Your estimate
Calculate
Development targets — specifications not yet validated
Sources and methodology
Educational model: area × height × 30/40/50 W/m³ × sunlight factor. Sensitivity range ±20%, not a confidence interval. 1 kW ≈ 3,412 BTU/h. This is not a professional heat-load assessment.
Your questions, answered
How many kW is 12,000 BTU/h?
Approximately 3.52 kW of cooling capacity: divide 12,000 by 3,412. Electrical input is a separate figure.
Does the calculator guarantee correct sizing?
No. It gives a transparent initial estimate. Attic rooms, large glazed areas and high heat loads need a more detailed assessment.