Mathematics & calculation

Convert mm to inches (and inches to mm)

Two-way millimeters ↔ inches converter: exact factor (1 in = 25.4 mm), fractions of an inch (1/4, 3/8, 1/16), formulas, a conversion table and real examples (1/4 in bolt, 13 mm wrench, 205/55 R16 tire, 17-inch wheel).

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<div
  class="bethemesh-widget"
  data-tool="mm-to-inches"
  data-lang="en"
  data-theme="auto"
  data-min-height="360"
  data-max-height="700"
  data-sandbox="allow-scripts allow-same-origin"
  data-allow="clipboard-write"
></div>
<script src="https://bethemesh.com/widgets/v1/bethemesh.js" async></script>
<p style="margin:6px 0 0;font:12px/1.4 system-ui,sans-serif">Free tool by <a href="https://bethemesh.com/en/tools/mm-to-inches">Bethemesh</a></p>

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Convert mm to inches (and inches to mm)

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