Free tools

Engineering Calculators

Free calculators for industrial maintenance and engineering — no account required, all calculations run in your browser.

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Air Compressor Sizing Calculator

Enter your tool list and duty cycles. Get required FAD (L/min or CFM), recommended compressor kW, and minimum receiver tank volume.

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Compressed Air Leak Cost Calculator

Calculate the annual energy cost of compressed air leaks by orifice size or severity class. Justify your leak detection survey ROI.

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OEE Calculator

Calculate Overall Equipment Effectiveness from planned time, downtime, cycle rate, total count, and rejects. Includes rating against world-class benchmarks.

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More calculators coming

In development for Month 2:

  • Pump TDH calculator (static head + friction losses)
  • NPSH margin calculator (NPSHa vs NPSHr)
  • Bearing L10 life calculator (ISO 281)
  • MTBF / MTTR calculator from failure data
  • Motor bearing grease quantity calculator