Tools · Calculators

Calculators

• Normal Distribution Explorer

  Normal distribution · area · control limits

  Visualize a normal curve; solve for mean, std dev, or control limits given the others, and read the area under the curve.

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• Process Capability

  Cp · Cpk · Cpu · Cpl · Cpm · defect rate

  Compute Cp / Cpk / Cpu / Cpl / Cpm and defect rate, or solve for the σ, mean, or spec limit to hit a target index.

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• Queueing Theory

  M/M/c · 1–3 servers

  M/M/c metrics for 1–3 servers (utilization, queue length, wait, and time in system), with a live wait-vs-utilization curve you can drag.

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