Length Converter

Convert meters, centimeters, feet, inches, kilometers, miles and more in one view.

Length
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Related Conversions
3 mm to in 12 mm to in 15 mm to in 30 mm to in 36 mm to in 40 mm to in 48 mm to in 50 mm to in 96 mm to in 120 mm to in 500 mm to in 750 mm to in
Reverse Conversions
3 in to mm 4 in to mm 5 in to mm 6 in to mm 15 in to mm 18 in to mm 40 in to mm 48 in to mm 50 in to mm 72 in to mm 96 in to mm 120 in to mm
More Length Conversions
1 mi to km 3 yd to ft 5 ft to cm 5 km to mi 6 ft to m 9 ft to yd 10 km to mi 10 m to ft 12 in to cm 25 mm to in 26.2 mi to km 100 cm to in

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Common Benchmarks

King-size bed 76 in
Standard door height 80 in
Football field 100 yd
City block 100 m
Marathon 26.2 mi
Tennis court 78 ft

Formula

in = mm × 0.0393700787

Example

Example: convert 1 millimeter to inches.

1 mm = 0.03937008 in

Conversion table

millimeters (mm) inches (in)
1 mm 0.03937008 in
2 mm 0.07874016 in
5 mm 0.19685039 in
10 mm 0.39370079 in
20 mm 0.78740157 in
50 mm 1.96850394 in
100 mm 3.93700787 in

Explanation

Millimeters are used for very small lengths and engineering tolerances, while Inches are commonly used in the United States for screens and small lengths.

How to convert millimeters to inches

  1. Start with the value in millimeters (mm).
  2. Multiply it by 0.0393700787.
  3. The result is the measurement in inches (in).

Example: 1 mm → 0.03937008 in

Frequently Asked Questions

How many inches is 1 millimeter?

1 millimeter is about 0.0394 inches.

How to convert millimeters to inches?

To convert millimeters to inches, multiply by 0.0394.

How many millimeters is 1 inch?

1 inch equals 25.4 millimeters.

What is the difference between millimeters and inches?

Both are units of length. The main difference is usually scale and common usage context.

Where are millimeters and inches used?

They are used to measure length in everyday and technical contexts. The most common unit depends on the field and measurement needs.

Why does 1 millimeter equal 0.03937007874 inches?

Because the units are defined with a fixed relationship. To convert millimeters to inches, multiply by that factor.