Millimeters to Decimeters
1 mm = 0.01 dm. Edit either value to convert instantly.
Conversion formula
dm = mm × (0.001) × (10)1 mm = 0.01 dm
millimeter (mm)
One millimeter equals exactly 0.001 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
decimeter (dm)
One decimeter equals exactly 0.1 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
Conversion table
| mm | dm |
|---|---|
| = 0.01 | |
| = 0.02 | |
| = 0.05 | |
| = 0.1 | |
| = 0.15 | |
| = 0.2 | |
| = 0.25 | |
| = 0.3 | |
| = 0.4 | |
| = 0.45 |
| mm | dm |
|---|---|
| = 0.5 | |
| = 0.6 | |
| = 0.7 | |
| = 0.8 | |
| = 0.9 | |
| = 1 | |
| = 1.5 | |
| = 1.6 | |
| = 1.7 | |
| = 1.8 |
Frequently asked questions
How many decimeters are in 1 millimeter?
1 mm = 0.01 dm. dm = mm × (0.001) × (10)
How do I convert mm to dm?
dm = mm × (0.001) × (10)
Is 1 millimeter bigger than 1 decimeter?
1 mm = 0.01 dm.
Related conversions
All quantities
Mass / weightVolumeTemperatureAreaSpeedTimePressureEnergyPowerData storageFuel economyAngleFrequencyForceTorqueDensityData transfer rateAccelerationElectric chargeElectric currentVoltageCapacitanceAbsorbed doseDynamic viscosityElectrical resistanceIlluminanceKinematic viscosityLuminanceMagnetic flux densityMass flow rateRadioactivityVolumetric flow rateElectrical conductanceEquivalent doseInductanceMagnetic fluxMolar concentrationSolution mass concentrationAmount of substanceAngular velocityCountLuminous fluxLuminous intensityMagnetic field strengthMagnetomotive forceAbsorbed dose rateRadiation exposureThermal conductivity