Millimeters to Decimeters Converter

Enter a value to calculate the result instantly and free of charge.

mm
0.01dm

1 mm = 0.01 dm

Conversion summary

1 mm = 0.01 dm

Formula
Decimeter = Millimeter ÷ 100
Category
Length
Units
mm → dm

1 mm in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

Metric

US / Imperial

  • Foot0.00328084 ft
  • Inch0.03937008 in
  • Yard0.001093613 yd
  • Mile0.0000006213712 mi
  • Scandinavian mile0.0000001 mil
  • Furlong0.00000497097 fur
  • Nautical mile0.0000005399568 nmi
  • Fathom0.0005468066 ftm

Traditional and regional

  • Arshin0.001470588 arshin
  • Endaze0.001538462 endaze
  • Byzantine Foot0.00317662 pus
  • Byzantine Fathom0.0005294367 orgyia
  • Cig0.003003003 cig

Scientific

  • Astronomical Unit6.68459E-15 AU
  • Light-year1.057E-19 ly
  • Parsec3.24078E-20 pc
  • Angstrom10,000,000 Å

How do you convert millimeters to decimeters?

To convert millimeters to decimeters, divide the number of millimeters by 100. 1 mm = 0.01 dm.

Conversion formula

Decimeter = Millimeter ÷ 100

Millimeters to decimeters conversion table

Millimeters (mm)Decimeters (dm)
1 mm0.01 dm
10 mm0.1 dm
50 mm0.5 dm
100 mm1 dm
200 mm2 dm
500 mm5 dm
1,000 mm10 dm

What is Millimeter?

The millimeter is a unit of length equal to one thousandth of a meter. It is widely used in technical and precision work.

Short history of Millimeter

The millimeter became especially important as manufacturing and engineering required tighter tolerances and repeatable precision.

Open the Millimeter unit guide

What is Decimeter?

Decimeter is a length unit used to express distance, size or travel range in practical measurement work.

Short history of Decimeter

Decimeter became established as a practical length unit in technical, commercial or scientific use.

Open the Decimeter unit guide

Frequently asked questions

What is 1 Millimeter in Decimeter?

1 mm = 0.01 dm. Enter another value in the converter to calculate its equivalent instantly.

How do you convert Millimeter to Decimeter?

To convert millimeters to decimeters, divide the number of millimeters by 100. 1 mm = 0.01 dm.

How precise are the results?

Conversion results are calculated to 12 significant figures. Very large or very small values are shown in scientific notation.

Is the Millimeter to Decimeter converter free?

Yes. The conversion tool on BirimCeviri.app is free and requires no sign-up.

Frequently asked questions

How many decimeters are in 1 millimeter?

1 mm = 0.01 dm.

How do you convert millimeters to decimeters?

To convert millimeters to decimeters, divide the number of millimeters by 100. 1 mm = 0.01 dm.

How many millimeters are in 1 decimeter?

1 dm = 100 mm.

Sources

The definitions and conversion relationships on this page are aligned with standard metrology and SI reference material.

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: SI Units – Length
  3. NIST: Guide for the Use of the International System of Units

Other languages

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