Air conditioning sizing calculator
Estimate cooling load from room volume, sun exposure, occupants and appliances, in W and BTU/h.
Calculation inputs
Editable example. Replace prices and assumptions with your project data; these are not verified rates or a quote.
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Indicative result
- Frigorías per hour
- 2,593.51 kcal/h
- BTU per hour
- 10,291.87 BTU/h
- Internal volume
- 65 m³
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How it is calculated
Indicative result = Area (m²) × Height (m) × Base load (W/m³) × Sun and glazing factor + Occupants × 100 + Appliance heat (W)
BTU per hour = Indicative result × 3.412142
Frigorías per hour = Indicative result × 0.859845
What to check
Preliminary volume-based estimate. Does not model glazing, orientation, infiltration, humidity or design climate in detail. Equipment selection requires professional load calculation.
Sources and references
IDAE · EdificaciónReviewed:
Frequently asked questions
Is this a final quote?
No. Results depend on your inputs and the stated scope. A professional must check the property, measurements and conditions before quoting.
Can I use measurements from my plan?
Renovation, radiator, cooling and materials calculators can use internal plan measurements. Enter built area and the thermal envelope separately. You can save scenarios in your project.
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