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THREADS & GEOMETRY/Thread Utilities

Thread Size Converter

Convert metric thread diameter and pitch into inch diameter and TPI references.

Open Tool How It Works
Metrik MFG / Thread UtilitiesREADY
Thread Size Converter
INPUTVALUEOUTPUT
Primary input01
Process setting02
Generated output03
UTILITY STATUSREADY TO USEEnter values below to generate the output
UTILITY

Thread Size Converter

WORKING TOOL
RESULTCALCULATED OUTPUT
Diameter—in
Pitch—in
Threads per inch—TPI

Enter the required inputs and calculate.

Advanced Engineering Tool
ABOUT THIS TOOL

How Thread Size Converter fits into the workflow.

This converter provides a practical dimensional comparison between metric thread notation and inch thread values.

01

Prepare the Thread Utilities Inputs

Enter the nominal metric diameter and pitch. The tool returns inch diameter, pitch in inches, and threads per inch.

02

Where This Output Fits

Use it when comparing thread specifications or checking a drawing that mixes metric and inch references.

04

What to Check Before Using It

Treating converted dimensions as interchangeable thread specifications. Thread form and fit still need to match the actual standard.

ENGINEERING METHOD

How Thread Size Converter generates its output.

METHODDiameter in = diameter mm ÷ 25.4. TPI = 25.4 ÷ pitch mm.
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