Delta Symbol Copy and Paste Alt Code Unicode Keyboard Shortcuts

The Delta symbol (Δ δ) is one of the most widely recognized Greek letters used in mathematics, science, engineering, finance, and technology. Whether you need to copy and paste the Delta symbol, type it using a keyboard shortcut, or understand its meaning, this guide covers everything in one place.

You’ll also learn the correct Alt codes, Unicode values, HTML entities, LaTeX commands, and practical uses of both uppercase (Δ) and lowercase (δ) Delta symbols.

Delta Symbol Copy and Paste

Need the Delta symbol quickly? Simply copy any of the symbols below.

Symbol	Name	Copy
Δ	Capital Delta	Δ
δ	Small Delta	δ
∆	Increment Symbol	∆
𝚫	Bold Delta	𝚫
𝛥	Mathematical Bold Delta	𝛥
𝛿	Mathematical Bold Small Delta	𝛿
𝜟	Italic Capital Delta	𝜟
𝛿	Italic Small Delta	𝛿

Quick Copy Box

Δ

δ

∆

𝚫

𝛥

𝛿

𝜟

Simply select your preferred symbol, copy it, and paste it anywhere.

What Is the Delta Symbol?

The Delta symbol is the fourth letter of the Greek alphabet. It appears in two primary forms:

• Δ (uppercase Delta)
• δ (lowercase Delta)

While both represent the same Greek letter, they are used differently depending on the subject.

The uppercase Δ commonly represents change, difference, or increment, whereas the lowercase δ often represents small changes, partial derivatives, or specialized scientific variables.

History of the Greek Letter Delta

The Greek alphabet dates back more than 2,700 years. Delta originated from the ancient Phoenician letter “Daleth,” which eventually evolved into the modern Greek letter.

Today, Delta remains one of the most frequently used mathematical symbols and scientific notations worldwide.

Capital vs Lowercase Delta

Symbol	Name	Common Use
Δ	Capital Delta	Change, difference, geometry
δ	Lowercase Delta	Small change, calculus, physics

Although they look similar, their meanings often depend on the context.

Unicode Information

Every computer stores characters using Unicode.

Symbol	Unicode	Code Point
Δ	U+0394	Greek Capital Letter Delta
δ	U+03B4	Greek Small Letter Delta

Unicode ensures the Delta symbol displays correctly across websites, software, and operating systems.

Delta Symbol Meaning and Uses

The Delta symbol has different meanings depending on the field. Understanding these uses helps you interpret formulas, equations, and technical documents correctly.

Mathematics

In mathematics, Δ usually means change in a value.

Examples:

• Δx = Change in x
• Δy = Change in y
• Δt = Change in time

You’ll also find Delta in geometry, algebra, and calculus.

The lowercase δ often represents a very small quantity or a variable used in advanced mathematical proofs.

Science

Scientists use the Delta symbol to represent measurable changes during experiments.

Examples include:

• Temperature changes
• Pressure differences
• Energy changes
• Distance variations

Because it clearly indicates variation, Delta appears throughout scientific literature.

Physics

Physics uses Delta constantly.

Common examples include:

• Δv = Change in velocity
• Δt = Time interval
• ΔE = Change in energy
• Δx = Displacement

The lowercase δ is also used in specialized areas such as quantum mechanics and thermodynamics.

Chemistry

In chemistry, the Delta symbol often indicates:

• Heat applied during a chemical reaction (Δ above a reaction arrow)
• Energy change
• Enthalpy change (ΔH)
• Gibbs free energy (ΔG)
• Entropy change (ΔS)

These symbols appear frequently in textbooks and laboratory work.

Engineering

Engineers rely on Delta to describe changes in measurements and system performance.

Examples include:

• Stress difference
• Voltage change
• Pressure variation
• Thermal expansion
• Material deformation

It provides a simple way to express variation between two values.

Statistics

Statisticians occasionally use Delta in formulas involving estimation, probability, and error analysis.

You’ll also encounter the Delta Method, a statistical technique used to estimate the variance of transformed variables.

Finance

Financial analysts use Delta in several ways.

For example:

• Option Delta measures how an option’s price changes when the underlying asset moves.
• Analysts use Delta when evaluating financial risk and market sensitivity.

This makes Delta an important concept in investment and derivatives trading.

Geography

Not every Delta refers to the Greek letter.

In geography, a river delta is a landform created when a river deposits sediment before entering a sea, lake, or ocean.

Famous examples include:

• Nile Delta
• Mississippi Delta
• Ganges Delta

Although the name comes from the triangular shape resembling the Greek letter Δ, its meaning is entirely geographical.

How to Type the Delta Symbol on Any Device

Typing the Delta symbol (Δ δ) is easy once you know the correct keyboard shortcut for your device. Below are the fastest methods for Windows, Mac, Linux, Chromebook, Android, and iPhone.

Windows Alt Code

Windows users can type the Delta symbol using Alt codes.

Capital Delta (Δ)

• Hold the Alt key.
• Type 916 on the numeric keypad.
• Release the Alt key.

Small Delta (δ)

• Hold the Alt key.
• Type 235 on the numeric keypad.
• Release the Alt key.

Note: On some Windows applications, the Alt code method may vary depending on the font or keyboard layout. If it doesn’t work, use Insert → Symbol in Microsoft Office or copy and paste the symbol from this page.

Mac Keyboard Shortcut

macOS doesn’t have a dedicated shortcut for every Greek letter, but you can insert Delta in several ways.

Option 1: Character Viewer

1. Press Control + Command + Space.
2. Search for Delta.
3. Click Δ or δ to insert it.

Option 2: Greek Keyboard

Enable the Greek keyboard in System Settings > Keyboard, then switch layouts whenever you need Greek letters.

Chromebook

On a Chromebook, the easiest methods are:

• Copy and paste Δ or δ.
• Use the built-in Emoji & Symbols picker (if available).
• Insert the symbol from Google Docs > Insert > Special Characters.

Linux

Linux users have several options.

• Use the Compose Key (if enabled).
• Use Unicode input.
• Copy and paste the symbol.

Many Linux distributions also allow Unicode entry by pressing Ctrl + Shift + U, typing the Unicode value, and pressing Enter.

Android

Typing Delta on Android is simple.

• Open your keyboard.
• Tap the symbol key.
• If Delta isn’t available, copy Δ or δ from this page.
• Some keyboards also support Greek characters through additional language packs.

iPhone & iPad

iOS doesn’t include the Delta symbol on the standard keyboard.

The fastest solution is to:

• Copy Δ or δ.
• Paste it wherever needed.

You can also create a Text Replacement shortcut in Settings > General > Keyboard > Text Replacement to insert Delta automatically.

Delta Symbol Alt Codes, Unicode, HTML & LaTeX

The following reference table contains the most commonly used codes for the Delta symbol.

Method	Capital Delta (Δ)	Small Delta (δ)
Alt Code	Alt + 916*	Alt + 235*
Unicode	U+0394	U+03B4
HTML Entity	Δ	δ
HTML Decimal	Δ	δ
HTML Hex	Δ	δ
CSS	\0394	\03B4
JavaScript	\u0394	\u03B4
LaTeX	\Delta	\delta

*Alt codes can vary depending on the application and keyboard configuration. If they don’t work in your software, use the Unicode or symbol insertion method instead.

This table is useful for web developers, programmers, students, and anyone working with Unicode, HTML entities, or LaTeX.

How to Insert the Delta Symbol in Popular Apps

Different applications provide built-in ways to insert Greek letters. Here’s how to add the Delta symbol in the most popular programs.

Microsoft Word

There are several ways to insert Delta.

• Go to Insert > Symbol > More Symbols.
• Choose Greek and Coptic.
• Select Δ or δ.
• Click Insert.

You can also use Word’s Equation Editor for mathematical notation.

Google Docs

To insert Delta in Google Docs:

1. Click Insert.
2. Select Special Characters.
3. Search for Delta.
4. Click the desired symbol.

You can also copy and paste the symbol directly into your document.

Excel

Excel supports Delta in multiple ways.

• Use Insert > Symbol.
• Copy and paste the character.
• Insert it inside formulas or worksheet labels where needed.

Delta is commonly used in engineering calculations and scientific spreadsheets.

PowerPoint

In Microsoft PowerPoint:

• Open Insert > Symbol.
• Select the Greek character set.
• Insert Δ or δ.

This is useful for academic presentations, research papers, and technical diagrams.

Outlook

To include Delta in an email:

• Use Insert > Symbol.
• Or simply copy and paste Δ.

The symbol works correctly in most modern email clients.

Google Sheets

Google Sheets doesn’t have a dedicated symbol menu like Excel.

The easiest methods are:

• Copy and paste the symbol.
• Use the CHAR() function with the appropriate Unicode value if required.
• Insert it into cells, charts, or notes.

Delta Symbol Variations and Related Greek Symbols

The Delta symbol has several forms depending on the font style, mathematical notation, and context. While Δ and δ are the standard Greek letters, you’ll also encounter other related symbols in mathematics, science, and engineering.

Delta Symbol Comparison Table

Symbol	Name	Common Use
Δ	Capital Delta	Change, difference, geometry, mathematics
δ	Small Delta	Small change, calculus, physics, variables
∆	Increment Symbol	Represents change in some mathematical texts
∇	Nabla	Gradient, divergence, vector calculus
Α α	Alpha	Angles, coefficients, significance level
Β β	Beta	Beta particles, finance, coefficients
Γ γ	Gamma	Gamma rays, functions, constants
Θ θ	Theta	Angles, trigonometry, statistics
Σ σ	Sigma	Summation, standard deviation
Ω ω	Omega	Electrical resistance, angular frequency

Although these symbols belong to the Greek alphabet, each has a unique meaning depending on the subject. Using the correct symbol helps avoid confusion in equations, scientific papers, and technical documents.

Delta Symbol Examples and Real-Life Applications

The Delta symbol appears in classrooms, laboratories, engineering projects, financial analysis, and even geography. Here are some common examples.

Solving Equations

In mathematics, Delta often represents the difference between two values.

Examples:

• Δx = Final value − Initial value
• Δy = Vertical change
• Δt = Time interval

These expressions are common in algebra, calculus, and coordinate geometry.

Change in Value (Δx, Δy)

One of the most recognized uses of Delta is showing change.

For example:

• Temperature rises from 20°C to 30°C
• ΔT = 10°C

Similarly:

• Initial speed = 40 km/h
• Final speed = 60 km/h
• Δv = 20 km/h

Temperature Difference

Engineers and scientists use Delta to measure temperature changes.

Examples include:

• ΔT in heating systems
• ΔT in air conditioning
• ΔT in thermodynamics
• ΔT in laboratory experiments

This notation quickly communicates the difference between two temperature readings.

Chemical Reactions

In chemistry, a Delta symbol written above a reaction arrow means heat is supplied to start or speed up the reaction.

Example:

CaCO₃  ──Δ──►  CaO + CO₂

You’ll also see:

• ΔH = Enthalpy change
• ΔG = Gibbs free energy
• ΔS = Entropy change

Engineering Formulas

Engineers use Delta in many calculations, including:

• Voltage change
• Pressure difference
• Thermal expansion
• Material deformation
• Fluid dynamics
• Structural analysis

Because engineering often compares measurements before and after an event, Delta is an essential notation.

Statistical Analysis

Statistics uses Delta in advanced methods such as the Delta Method, which estimates the variability of transformed values.

Researchers may also use Delta when discussing changes between datasets or comparing statistical models.

Financial Data

In finance, Delta (Δ) measures how much an option’s price is expected to change when the price of the underlying asset changes.

Example:

If an option has a Delta of 0.70, its price is expected to increase by approximately 0.70 for every 1-unit increase in the underlying asset’s price.

Delta is one of the most important “Greeks” used in options trading.

Maps and River Deltas

Outside mathematics and science, “delta” also refers to a river delta.

A river delta forms where a river slows down and deposits sediment before entering a sea or lake.

Well-known examples include:

• Nile Delta
• Mississippi Delta
• Ganges-Brahmaputra Delta
• Mekong Delta

The landform gets its name because its triangular shape resembles the capital Greek letter Δ.

Conclusion

The Delta symbol (Δ δ) is much more than just a Greek letter. It plays a vital role in mathematics, physics, chemistry, engineering, statistics, finance, and even geography. Whether you need to copy and paste the Delta symbol, type it using keyboard shortcuts, use its Alt code, or insert it in applications like Microsoft Word, Google Docs, or Excel, this guide provides everything you need in one place.

Bookmark this page for quick access to the Delta symbol, Unicode values, HTML entities, LaTeX commands, and practical examples whenever you need them.

FAQs

What does the Delta symbol mean?

The Delta symbol generally represents change, difference, or variation. Its exact meaning depends on the subject in which it is used.

What is the Alt code for Delta?

Many Windows applications support Alt + 916 for Δ and Alt + 235 for δ, though compatibility may vary. You can always copy and paste the symbols if needed.

How do I type Delta on Windows?

Use an Alt code (where supported), insert it through Insert → Symbol in Microsoft Office, or copy and paste the symbol from this page.

How do I type Delta on Mac?

Press Control + Command + Space, search for Delta, and insert Δ or δ from the Character Viewer.

Is Delta a Greek letter?

Yes. Delta is the fourth letter of the Greek alphabet and has both uppercase (Δ) and lowercase (δ) forms.

What is the lowercase Delta?

The lowercase Delta is δ. It is commonly used in calculus, physics, engineering, and scientific notation.

What is the Unicode for Delta?

The Unicode values are:

• Δ = U+0394
• δ = U+03B4

How do I copy and paste the Delta symbol?

Simply copy Δ or δ from the copy box near the beginning of this article and paste it into any document, website, or application.

What is Delta used for in mathematics?

In mathematics, Delta usually represents the difference between two values, such as Δx, Δy, or Δt.

What is the difference between Δ and δ?

Δ (uppercase) typically represents a larger or overall change, while δ (lowercase) often represents a small change, variable, or specialized mathematical notation.

Related Greek Letters and Math Symbols

If you’re looking for other commonly used mathematical and Greek symbols, you may also find these helpful:

• Alpha Symbol (Α α)
• Beta Symbol (Β β)
• Gamma Symbol (Γ γ)
• Sigma Symbol (Σ σ)
• Pi Symbol (π)
• Theta Symbol (Θ θ)
• Infinity Symbol (∞)
• Degree Symbol (°)
• Square Root Symbol (√)
• Plus Minus Symbol (±)

Adding internal links to these related symbol pages can improve your site’s topical authority and help users explore connected concepts more easily.