Engineering Tools
Free calculators for process and quality engineers. Each one works from a published standard or textbook method, adds no data of its own, and explains how it calculates.
2 tools available
01Quality
AQL Sampling Plan (ANSI/ASQ Z1.4)
Find sample size, accept and reject numbers for normal, tightened and reduced single sampling.
Gauge R&R (Average and Range)
Calculate %GRR with the average and range method and read the acceptance band.
02General
Engineering Unit Converter
Convert ppm, mil, Å, sccm, Torr, ASD and µm/min.