Room Cooling BTU Calculator
Estimated cooling load = area × selected load allowance + extra load. 1 W ≈ 3.41214 BTU/h.
Inputs and units
- Floor area (m²): Enter your value in the format and unit shown.
- Cooling load allowance (W/m²): Enter your value in the format and unit shown.
- Additional load (W): Enter your value in the format and unit shown.
Calculation method
Estimated cooling load = area × selected load allowance + extra load. 1 W ≈ 3.41214 BTU/h.
Worked example
The example values are: Floor area (m²) = 20; Cooling load allowance (W/m²) = 100; Additional load (W) = 0
- Cooling capacity estimate (W): 2,000
- Cooling capacity estimate (BTU/h): 6,824.283266
- Refrigeration tons: 0.5686902722
Assumptions and limitations
Preliminary cooling estimate only. The default allowance is illustrative. Climate, insulation, windows, occupants and ventilation require a proper load calculation.
Using your result
Select Calculate after changing inputs. Copy result copies the displayed output; Download result saves a text file. Reset returns the form to its example inputs. Calculations run in your browser.
Room Cooling BTU Calculator FAQs
What method does this calculator use?
Estimated cooling load = area × selected load allowance + extra load. 1 W ≈ 3.41214 BTU/h.
What should I check before using the result?
Preliminary cooling estimate only. The default allowance is illustrative. Climate, insulation, windows, occupants and ventilation require a proper load calculation.