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Millimeter Converter

Convert millimeters (mm) to other units quickly and accurately. Perfect for precision work in engineering, manufacturing, and scientific applications.

Need a different unit? Pick any measurement from the dropdown and convert in seconds.

millimeter
1 millimeter = 0.0394 inches
1 inch = 25.4 millimeters

Popular millimeter conversions

Quickly find the most common millimeter conversions for precision measurements.

Millimeters to inches

1 mm = 0.0394 in2 mm = 0.0787 in5 mm = 0.1969 in10 mm = 0.3937 in15 mm = 0.5906 in20 mm = 0.7874 in25 mm = 0.9843 in25.4 mm = 1 in50 mm = 1.9685 in100 mm = 3.937 in

Millimeters to centimeters

1 mm = 0.1 cm5 mm = 0.5 cm10 mm = 1 cm15 mm = 1.5 cm20 mm = 2 cm25 mm = 2.5 cm50 mm = 5 cm100 mm = 10 cm500 mm = 50 cm1000 mm = 100 cm

Millimeters to feet

10 mm = 0.0328 ft50 mm = 0.164 ft100 mm = 0.328 ft200 mm = 0.656 ft304.8 mm = 1 ft500 mm = 1.64 ft609.6 mm = 2 ft1000 mm = 3.281 ft3048 mm = 10 ft6096 mm = 20 ft

Millimeters to meters

1 mm = 0.001 m10 mm = 0.01 m100 mm = 0.1 m250 mm = 0.25 m500 mm = 0.5 m750 mm = 0.75 m1000 mm = 1 m2000 mm = 2 m5000 mm = 5 m10000 mm = 10 m

Millimeters to yards

50 mm = 0.0547 yd100 mm = 0.1094 yd500 mm = 0.5468 yd914.4 mm = 1 yd1000 mm = 1.0936 yd1828.8 mm = 2 yd2743.2 mm = 3 yd5000 mm = 5.468 yd9144 mm = 10 yd91440 mm = 100 yd

Millimeters to kilometers

1000 mm = 0.000001 km10000 mm = 0.00001 km100000 mm = 0.0001 km500000 mm = 0.0005 km1000000 mm = 0.001 km5000000 mm = 0.005 km10000000 mm = 0.01 km100000000 mm = 0.1 km500000000 mm = 0.5 km1000000000 mm = 1 km

Millimeters to miles

1000 mm = 0.00062 mi10000 mm = 0.0062 mi100000 mm = 0.062 mi500000 mm = 0.311 mi1000000 mm = 0.621 mi1609344 mm = 1 mi3218688 mm = 2 mi8046720 mm = 5 mi16093440 mm = 10 mi160934400 mm = 100 mi

Millimeters to micrometers

0.001 mm = 1 μm0.01 mm = 10 μm0.1 mm = 100 μm0.5 mm = 500 μm1 mm = 1000 μm2 mm = 2000 μm5 mm = 5000 μm10 mm = 10000 μm50 mm = 50000 μm100 mm = 100000 μm

Millimeters to nanometers

0.001 mm = 1000 nm0.01 mm = 10000 nm0.1 mm = 100000 nm0.5 mm = 500000 nm1 mm = 1000000 nm2 mm = 2000000 nm5 mm = 5000000 nm10 mm = 10000000 nm50 mm = 50000000 nm100 mm = 100000000 nm

Real-world conversion scenarios

See how inch conversions translate into everyday and professional measurements

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Mobile devices

Smartphone and tablet screen sizes

15.49 centimeters = iPhone 15: 6.1 inches
17.27 centimeters = Samsung Galaxy: 6.8 inches
32.77 centimeters = iPad Pro: 12.9 inches
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TVs and monitors

Television and computer display diagonals

81.28 centimeters diagonally = 32 inch TV
139.7 centimeters diagonally = 55 inch TV
68.58 centimeters diagonally = 27 inch monitor
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Height and body

Human height and common measurements

175.26 centimeters = 5 feet 9 inches
182.88 centimeters = 6 feet 0 inches
203.2 centimeters = Standard door height: 80 inches
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Engineering and CAD

Technical drawings and precision work

6.35 millimeters = Bolt diameter: 0.25 inches
50.8 millimeters = Pipe size: 2 inches
1.6 millimeters = Sheet thickness: 0.063 inches
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Clothing and fashion

Garment measurements and sizing

81.28 centimeters = Waist 32 inches
101.6 centimeters = Chest 40 inches
76.2 centimeters = Inseam 30 inches
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Construction and DIY

Building materials and measurements

38x89 millimeters = 2x4 lumber: 1.5x3.5 inches
12.7 millimeters = Drywall thickness: 0.5 inches
274.32 centimeters = Ceiling height: 9 feet
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Print design

Paper sizes and layout work

21.6x27.9 centimeters = Letter paper: 8.5x11 inches
8.9x5.1 centimeters = Business card: 3.5x2 inches
10.2x15.2 centimeters = Photo: 4x6 inches
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Automotive

Vehicle parts and wheel sizes

43.18 centimeters = Wheel size: 17 inch rim
12.7 millimeters = Lug bolt: 0.5 inches
457.2 centimeters = Vehicle length: 180 inches

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Yard Converter

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Kilometer Converter

Convert kilometers to miles, meters, feet, and other length units.

Technical authority and accuracy

Understand the science and standards behind precise length conversions

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Conversion precision

Our converter follows the internationally recognized definition where one inch equals 25.4 millimeters, delivering lab-grade accuracy for professional work.

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Measurement standards

Every conversion is based on the 1959 International Yard and Pound Agreement, which defines the exact relationship between imperial and metric units used today.

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Historical background

The inch evolved from body-based measurements into a precisely defined unit. Knowing this history explains why modern conversions are so exact.

Frequently asked questions

Find answers to popular inch conversion and measurement questions

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