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μ Greek Small Letter Mu (Micro Symbol) – Copy & Paste

The Mu symbol (μ) is the 12th letter of the Greek alphabet, widely used in statistics (population mean), physics (coefficient of friction), mathematics, and chemistry (micro-units). Copy it instantly with one click.

μ

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Mu Symbol Copy & Paste

Click on any symbol below to copy it instantly. Works everywhere - documents, emails, social media, and more.

μ

Lowercase Mu

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Μ

Uppercase Mu

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µ

Micro Sign

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𝛍

Bold Mu

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Mu Symbol Codes

Use these codes to insert the Mu symbol (μ) in HTML, CSS, Word, and other applications.

Code Type Mu (μ) Micro (µ)
Unicode U+03BC U+00B5
HTML Code μ µ
HTML Entity μ µ
CSS Code \03BC \00B5
HEX Code μ µ
Alt Code (Windows) Alt + 230 Alt + 0181
LaTeX \mu \mu
Shortcode :mu: :micro:

Mu Symbol Meaning

The Greek letter Mu (μ) carries significant meaning across various scientific and mathematical disciplines.

Statistics

In statistics, μ represents the population mean – the average value of an entire population. This is different from x̄ (x-bar), which represents the sample mean.

μ = Σx / N

Population Mean Formula

Physics

In physics, μ represents multiple concepts including the coefficient of friction, magnetic permeability, and micron measurements (μm).

f = μN

Friction Force Formula

Mathematics

In mathematics, μ is used as a variable or constant in various equations, representing measures, Möbius function, and integration measures.

∫ f dμ

Lebesgue Integration

Chemistry

In chemistry, μ represents micro-units for measurements like micromolar (μM), microgram (μg), and microliter (μL) concentrations.

5 μM

Micromolar Concentration

Micro Symbol (µ) Information

Understanding the micro symbol and its relationship to the Greek letter Mu.

10⁻⁶

Micro Symbol Value

The micro prefix represents one millionth (0.000001) of a unit.

μ ≠ µ

μ vs µ Difference

μ (U+03BC) is Greek Mu, while µ (U+00B5) is the dedicated micro sign.

μm, μg, μL

Common Uses

Micrometers, micrograms, microliters, microseconds, and more.

Where is the Micro Symbol Used?

  • Micrometer (μm) - Length measurement
  • Microgram (μg) - Mass measurement
  • Microliter (μL) - Volume measurement
  • Microsecond (μs) - Time measurement
  • Micromolar (μM) - Concentration
  • Microfarad (μF) - Capacitance

How to Type Mu / Micro Symbol

Different methods to type μ on various devices and applications.

Windows

  • Alt Code: Alt + 230 or Alt + 0181
  • Unicode: Type 03BC then Alt + X
  • Character Map: Search "charmap" and find μ

Mac

  • Shortcut: Option + M
  • Character Viewer: Ctrl + Cmd + Space
  • Search "mu" in Character Viewer

Microsoft Word

  • Insert: Insert → Symbol → More Symbols
  • Equation: Type \mu in equation mode
  • AutoCorrect: Set up μ shortcut

Mobile (iOS/Android)

  • iPhone: Add Greek keyboard in Settings
  • Android: Long-press "m" or add Greek keyboard
  • Easy way: Copy from this page!

Mu Symbol in Different Fields

Explore how the Mu symbol is used across various scientific disciplines.

Physics Applications

  • μ
    Coefficient of Friction

    Ratio of friction force to normal force (μ = F/N)

  • μ₀
    Magnetic Permeability

    Permeability of free space in electromagnetism

  • μm
    Micrometer (Micron)

    One millionth of a meter (10⁻⁶ m)

Mathematics Applications

  • μ
    Measure Theory

    Represents a measure in integration theory

  • μ(n)
    Möbius Function

    Important function in number theory

  • E[X]=μ
    Expected Value

    Mean of a probability distribution

Chemistry Applications

  • μM
    Micromolar

    Concentration unit (10⁻⁶ mol/L)

  • μg
    Microgram

    Mass unit (10⁻⁶ grams)

  • μ
    Chemical Potential

    Energy change per particle added

Engineering Applications

  • μF
    Microfarad

    Capacitance unit in electronics

  • μs
    Microsecond

    Time unit (10⁻⁶ seconds)

  • μA
    Microampere

    Current unit in electronics

All Greek Letters

Click on any Greek letter to copy it. Complete alphabet with both lowercase and uppercase versions.

Name Uppercase Lowercase Common Use
Alpha Α α Angles, significance level
Beta Β β Beta function, angles
Gamma Γ γ Gamma function, angles
Delta Δ δ Change, difference
Epsilon Ε ε Small quantity, error
Zeta Ζ ζ Riemann zeta function
Eta Η η Efficiency, viscosity
Theta Θ θ Angles, temperature
Iota Ι ι Imaginary unit
Kappa Κ κ Curvature, conductivity
Lambda Λ λ Wavelength, eigenvalue
Mu Μ μ Mean, micro, friction
Nu Ν ν Frequency, kinematic viscosity
Xi Ξ ξ Random variable
Omicron Ο ο Little-o notation
Pi Π π Pi constant (3.14159...)
Rho Ρ ρ Density, correlation
Sigma Σ σ Sum, standard deviation
Tau Τ τ Torque, time constant
Upsilon Υ υ Frequency
Phi Φ φ Golden ratio, angle, flux
Chi Χ χ Chi-squared distribution
Psi Ψ ψ Wave function, psychology
Omega Ω ω Ohm, angular velocity

Frequently Asked Questions

Common questions about the Mu symbol and micro symbol.

What is the μ symbol?

The μ symbol is the lowercase Greek letter "Mu" (pronounced "mew"). It is the 12th letter of the Greek alphabet. In science and mathematics, it commonly represents the prefix "micro" (meaning one millionth, or 10⁻⁶), the population mean in statistics, and the coefficient of friction in physics.

Is μ and micro symbol the same?

Technically, they are different characters. The Greek Small Letter Mu (μ) has Unicode U+03BC, while the Micro Sign (µ) has Unicode U+00B5. However, they look nearly identical and are often used interchangeably. The micro sign was added to Unicode specifically for SI unit prefixes, while the Greek mu is for writing Greek text.

How to copy Mu symbol?

The easiest way to copy the Mu symbol is to click on the μ symbol on this page – it will be automatically copied to your clipboard. You can also use keyboard shortcuts: Alt + 230 on Windows (numeric keypad), or Option + M on Mac. In Microsoft Word, you can insert it via Insert → Symbol or type \mu in equation mode.

What does Mu mean in physics?

In physics, μ has several important meanings: (1) Coefficient of friction - the ratio of friction force to normal force between two surfaces, (2) Magnetic permeability - μ₀ represents the permeability of free space, (3) Micro prefix - μm means micrometer (one millionth of a meter), and (4) Reduced mass - in two-body problems.

What does μ mean in statistics?

In statistics, μ (mu) represents the population mean – the average value of an entire population. This is different from x̄ (x-bar), which represents the sample mean. The population mean is a parameter, while the sample mean is a statistic used to estimate the population mean.

How do I type μ on a keyboard?

Windows: Hold Alt and type 230 or 0181 on the numeric keypad. Mac: Press Option + M. Microsoft Word: Type 03BC and press Alt + X, or use Insert → Symbol. LaTeX: Type \mu in math mode. HTML: Use μ or μ.

What is the value of micro?

The micro prefix (μ) represents 10⁻⁶, which is one millionth (0.000001) of a unit. For example: 1 μm (micrometer) = 0.000001 meters, 1 μg (microgram) = 0.000001 grams, 1 μs (microsecond) = 0.000001 seconds.

What is the name of the μ symbol?

The symbol μ is called "Mu" (pronounced "mew" like a cat sound, or "moo" in British English). It is the 12th letter of the Greek alphabet. The uppercase version is Μ (which looks like the Latin M), and the lowercase is μ. In scientific contexts, it is often referred to as the "micro symbol" when used as a prefix.