Engineering & Materials

Every engineering & materials calculator on CalcEngines — unit converters, derived indices and interpretive tools, each with its formula, a worked example and the reference intervals it is judged against.

1 calculator in this section

• Surface Roughness Converter (Ra, µin, CLA, RMS, Rz, N Grade)Ra in micrometres and microinches, CLA, AA, RMS and the ISO N grades — with a plain account of which of those conversions are exact and which are guesses. Ra to CLA is an identity. Ra to Rq depends on the profile shape. Ra to Rz has no valid conversion at all, and every chart on the web prints one anyway.

Other sections

Browse and search all calculators →