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Garage Calculators

Three free calculators for the sizing questions that come up before you buy garage equipment. They run in your browser, store nothing, and each page shows the formula, a worked example and the assumptions behind it, so you can check the math by hand.

Air Compressor CFM CalculatorPick the air tools you run and get the CFM at 90 PSI and tank size to shop for.Car Lift Ceiling Height CalculatorCheck the ceiling a lift needs for your car, and whether 2-post, 4-post, mid-rise or scissor fits.Garage Heater BTU CalculatorEstimate the BTU your garage needs from its size, insulation and climate, plus the circuit for electric.

What the calculators do

  • Air Compressor CFM Calculator: pick the air tools you will run, choose whether they run at the same time, and get the CFM at 90 PSI and the tank size range to shop for.
  • Car Lift Ceiling Height Calculator: enter your vehicle height, the lift height you want and your own height to see the ceiling you need and which lift types fit.
  • Garage Heater BTU Calculator: enter the garage size, insulation and climate zone to estimate the BTU a heater needs, plus the circuit size for an electric heater.

The typical values inside the calculators (how much air a tool uses, a lift type’s usual rise, insulation factors) are general ranges for planning. Always confirm against the manual for the exact tool, lift or heater you buy.