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Measure Threads with Wires

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Calculate values needed to measure threads using three wires.
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Sometimes it is not possible to use a thread measuring micrometer to measure screw threads, so the measure over three wire method must be used.

Use this application to quickly and easily do all the calculations required to measure ISO metric and UN 60 degree threads, Acme and Stub Acme threads, and Trapezoid threads with wires.

You can start with a known value for either pitch diameter, major diameter or measurement over wires.
The thread measurement over wires calculator will also give you the best wire size.
You can convert between threads per inch and pitch of thread, and convert all vaues between inches and millimeters.
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Measuring threads with three wires.