Calculator collection

Mechanical & Electrical Calculators

Create preliminary HVAC and electrical planning estimates with the governing loads, demand factors, assumptions, and safety limits made visible.

What are you working on?

3 calculators available

Mechanical & Electrical3

AC Size & BTU CalculatorEstimate a preliminary room AC capacity range from visible load factors.HVAC Planning Index CalculatorA transparent early planning index—not an equipment-sizing result.Electrical Load CalculatorA transparent 2023 NEC 220.82 planning worksheet—not panel selection.

What these estimates include

These tools do not replace Manual J, Manual S, engineered design, utility requirements, permits, or work by licensed professionals. Use them to prepare better questions and budgets.

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