Decimeters to Millimeters
1 dm = 100 mm. Edit either value to convert instantly.
Conversion formula
mm = dm × (0.1) × (1,000)1 dm = 100 mm
decimeter (dm)
One decimeter equals exactly 0.1 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
millimeter (mm)
One millimeter equals exactly 0.001 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
Conversion table
| dm | mm |
|---|---|
| = 100 | |
| = 200 | |
| = 500 | |
| = 1,000 | |
| = 1,500 | |
| = 2,000 | |
| = 2,500 | |
| = 3,000 | |
| = 4,000 | |
| = 4,500 |
| dm | mm |
|---|---|
| = 5,000 | |
| = 6,000 | |
| = 7,000 | |
| = 8,000 | |
| = 9,000 | |
| = 10,000 | |
| = 15,000 | |
| = 16,000 | |
| = 17,000 | |
| = 18,000 |
Frequently asked questions
How many millimeters are in 1 decimeter?
1 dm = 100 mm. mm = dm × (0.1) × (1,000)
How do I convert dm to mm?
mm = dm × (0.1) × (1,000)
Is 1 decimeter bigger than 1 millimeter?
1 dm = 100 mm.
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