Precision Tools

Vernier Caliper Trainer

Learn to read a 4" vernier caliper: beam graduations in 0.025" plus a 25-division vernier reading to 0.001". Practice freely or test your skills in quiz mode.

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VERNIER SCALE — FIND THE LINE THAT ALIGNS123456789205101520250.001 IN1.03" – 2.07"

Drag the slider left/right along the beam. Drag the thumbwheel up/down for fine adjustment.

Read the beam at the vernier's 0 line, then find the vernier line that aligns with a beam line in the zoomed view.

Scroll wheel: 0.001" steps. Hold Shift for 0.010". Arrow keys work too.