AC Size (Room) Calculator

Estimate room AC BTU requirement from room area and sun exposure.

Scratchpad (not saved)

sq ft

What This Calculator Does

Estimate room AC BTU requirement from room area and sun exposure.

It combines Room Area, Sun Exposure to estimate Estimated BTU.

Formula & Method

Core equations: Cooling load quick estimate: BTU=Area\cdot b\cdot f_{sun}.

Notation used in the formulas: R = Estimated BTU; x_{1} = Room Area; x_{2} = Sun Exposure.

Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.

Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.

Inputs Used

  • Room Area: Used directly in the calculation.
  • Sun Exposure: Used directly in the calculation.

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