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VELNARO

Length

Inches to MM Converter

Convert inch (in) to millimeter (mm) in one step. One inch equals 25.4 millimeters — enter any amount to see the exact result, or use the table below for common values.

Enter the amount in inchs to convert.

Result

1 in = 25.4 mm

In millimeters

25.4

Conversion rate

1 in = 25.4 mm

Inverse rate

1 mm = 0.03937 in

Conversion table

    1 in = 25.4 mm
    2 in = 50.8 mm
    5 in = 127 mm
   10 in = 254 mm
   25 in = 635 mm
   50 in = 1,270 mm
  100 in = 2,540 mm
  250 in = 6,350 mm
  500 in = 12,700 mm
 1000 in = 25,400 mm

How this was worked out

  1. Step 11 in = 25.4 mm
  2. Step 2Multiply: 1 × 25.4 = 25.4
  3. Step 3Result: 25.4 mm

Conversions use exact definitions (for example 1 inch = 25.4 mm exactly), so results are precise rather than rounded mid-calculation.

Formula

Millimeter = Inch × 25.4

How it works

  1. 1The conversion factor between inchs and millimeters is 25.4.
  2. 2Multiply your inchs value by 25.4 to get millimeters.
  3. 3To convert back, divide by 25.4 — or multiply by 0.03937.

Example

Input

1 in

Result

25.4 mm

Frequently asked questions

One inch equals 25.4 millimeters.

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