Millimeter to Micrometer Conversion Calculator: Free Online Tool

Convert millimeters to micrometers with our free online length converter.

Millimeter to Micrometer Calculator

mm
Millimeter
μm
Micrometer

How to Use the Calculator:

  1. Enter the value you want to convert in the 'From' field (Millimeter).
  2. The converted value in Micrometer will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Length category.
  4. Click the swap button (⇌) to reverse the conversion direction.

How to Convert Millimeter to Micrometer

Converting Millimeter to Micrometer involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Millimeter = 1000 micrometers

Example Calculation:

Convert 10 millimeters: 10 × 1000 = 1.0000e+4 micrometers

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Millimeter and a Micrometer?

The millimeter is a unit of length in the metric system equal to one-thousandth of a meter (1/1000 m) or one-tenth of a centimeter (1/10 cm). It is used for very precise measurements.

A micrometer, also known as a micron, is a unit of length equal to one millionth of a meter (1×10⁻⁶ m).

Note: The Millimeter is part of the metric (SI) system, primarily used globally in science and trade. The Micrometer belongs to the metric (SI) system.

History of the Millimeter and Micrometer

Defined as a subunit of the meter within the original metric system, the millimeter provides a standard unit for fine measurements required in science, engineering, and manufacturing.

The term micron was officially accepted between 1879 and 1967 but later deprecated. Micrometer is the current standard term.

Common Uses for millimeters and micrometers

Explore the typical applications for both Millimeter (metric) and Micrometer (metric) to understand their common contexts.

Common Uses for millimeters

  • Engineering & Machining: Precise engineering and machining measurements.
  • Technical Design: Technical drawings and specifications.
  • Electronics: Measuring small electronic components or wire gauges.
  • Meteorology: Measuring rainfall amounts.
  • Science: Scientific measurements requiring high precision (e.g., microscopy).

Common Uses for micrometers

  • Measuring microscopic objects (e.g., bacteria, cells)
  • Precision engineering tolerances
  • Semiconductor manufacturing

Frequently Asked Questions

Questions About Millimeter (mm)

How many millimeters are in a centimeter?

There are 10 millimeters (mm) in 1 centimeter (cm).

How many millimeters are in a meter?

There are 1,000 millimeters (mm) in 1 meter (m).

What does 'milli' mean in millimeter?

The prefix 'milli' denotes one-thousandth (1/1000).

About Micrometer (μm)

Is a micrometer the same as a micron?

Yes, 'micron' is an older, deprecated name for the micrometer (μm). Both refer to one millionth of a meter.

How many micrometers are in a millimeter?

There are 1,000 micrometers (μm) in 1 millimeter (mm).

What are some examples of things measured in micrometers?

Examples include the diameter of human hair (around 50-100 μm), bacteria (typically 1-10 μm), and the thickness of plastic bags.

Conversion Table: Millimeter to Micrometer

Millimeter (mm)Micrometer (μm)
11,000
55,000
1010,000
2525,000
5050,000
100100,000
500500,000
1,0001,000,000

All Length Conversions

Meter to KilometerMeter to CentimeterMeter to MillimeterMeter to InchMeter to FootMeter to YardMeter to MileMeter to Nautical MileMeter to MicrometerMeter to NanometerMeter to Light YearMeter to Astronomical UnitMeter to Point (Typography)Meter to Mil/ThouKilometer to MeterKilometer to CentimeterKilometer to MillimeterKilometer to InchKilometer to FootKilometer to YardKilometer to MileKilometer to Nautical MileKilometer to MicrometerKilometer to NanometerKilometer to Light YearKilometer to Astronomical UnitKilometer to Point (Typography)Kilometer to Mil/ThouCentimeter to MeterCentimeter to KilometerCentimeter to MillimeterCentimeter to InchCentimeter to FootCentimeter to YardCentimeter to MileCentimeter to Nautical MileCentimeter to MicrometerCentimeter to NanometerCentimeter to Light YearCentimeter to Astronomical UnitCentimeter to Point (Typography)Centimeter to Mil/ThouMillimeter to MeterMillimeter to KilometerMillimeter to CentimeterMillimeter to InchMillimeter to FootMillimeter to YardMillimeter to MileMillimeter to Nautical MileMillimeter to NanometerMillimeter to Light YearMillimeter to Astronomical UnitMillimeter to Point (Typography)Millimeter to Mil/ThouInch to MeterInch to KilometerInch to CentimeterInch to MillimeterInch to FootInch to YardInch to MileInch to Nautical MileInch to MicrometerInch to NanometerInch to Light YearInch to Astronomical UnitInch to Point (Typography)Inch to Mil/ThouFoot to MeterFoot to KilometerFoot to CentimeterFoot to MillimeterFoot to InchFoot to YardFoot to MileFoot to Nautical MileFoot to MicrometerFoot to NanometerFoot to Light YearFoot to Astronomical UnitFoot to Point (Typography)Foot to Mil/ThouYard to MeterYard to KilometerYard to CentimeterYard to MillimeterYard to InchYard to FootYard to MileYard to Nautical MileYard to MicrometerYard to NanometerYard to Light YearYard to Astronomical UnitYard to Point (Typography)Yard to Mil/ThouMile to MeterMile to KilometerMile to CentimeterMile to MillimeterMile to InchMile to FootMile to YardMile to Nautical MileMile to MicrometerMile to NanometerMile to Light YearMile to Astronomical UnitMile to Point (Typography)Mile to Mil/ThouNautical Mile to MeterNautical Mile to KilometerNautical Mile to CentimeterNautical Mile to MillimeterNautical Mile to InchNautical Mile to FootNautical Mile to YardNautical Mile to MileNautical Mile to Micrometer