🔬 Scientific Calculator

Advanced calculator for engineering & science

50+ Functions • Degree/Radian Mode • Memory

📐 DEG

💾 M: 0

0

⚠️

Error

📊 Calculation History

ℹ️ Quick Functions Guide

Basic: Use numbers & operations for basic math

Scientific: Trig (sin/cos/tan), Logs, Exponents, Roots

Memory: M+/M- to store, MR to recall, MC to clear

Toggle: DEG/RAD for angle modes

What Is the Scientific Calculator?

The Scientific Calculator on All Unit Tools is a powerful, free online calculator that provides advanced mathematical functions beyond basic arithmetic. This comprehensive tool handles everything from simple calculations to complex scientific, engineering, and statistical computations, all within your web browser.

This tool eliminates the need for expensive physical calculators or specialized software, offering students, professionals, and enthusiasts access to advanced mathematical functions anytime, anywhere. Whether you're solving trigonometric equations, calculating logarithms, or working with statistical data, our scientific calculator provides accurate results with precision.

Who Needs a Scientific Calculator?

From high school students to professional engineers, scientific calculators are essential tools for anyone working with mathematics, science, or technical calculations. Our online version offers the same functionality as physical devices with added convenience and accessibility.

🎓

Students & Educators

Essential for mathematics, physics, chemistry, engineering, and statistics courses. Perfect for homework, exams preparation, and classroom demonstrations.

👨‍🔬

Scientists & Researchers

Perform complex calculations for experiments, data analysis, statistical modeling, and research projects across all scientific disciplines.

👷

Engineers & Technicians

Calculate electrical circuits, structural loads, fluid dynamics, mechanical systems, and technical specifications with precision engineering functions.

📈

Finance & Data Analysts

Calculate compound interest, statistical measures, probability distributions, and financial models with advanced mathematical functions.

👨‍💻

Programmers & Developers

Convert between number systems (binary, hexadecimal, decimal), calculate bitwise operations, and solve algorithmic problems with mathematical precision.

🏠

DIY & Home Projects

Calculate measurements for construction, woodworking, home improvement, gardening, and various hobby projects requiring precise mathematical calculations.

How to Use the Scientific Calculator

1

Basic Operations

Start with addition, subtraction, multiplication, and division using the standard arithmetic buttons. Use parentheses to control calculation order and ensure correct results.

💡 Remember PEMDAS/BODMAS order of operations

2

Scientific Functions

Access trigonometric functions (sin, cos, tan), logarithms (log, ln), exponents (x², x³, xʸ), roots (√, ∛), and constants (π, e) using the dedicated function buttons.

Example: sin(45) + log(100) × √(25)

3

Advanced Calculations

Perform statistical calculations (mean, standard deviation), work with matrices, calculate factorials, permutations, combinations, and solve complex equations.

Example: 5! + ₇C₃ × mean(2,4,6,8)

4

Memory & History

Use memory functions (M+, M-, MR, MC) to store intermediate results. Review calculation history to check previous steps or reuse results in new calculations.

Memory functions are essential for multi-step problems!

Available Mathematical Functions

📐 Trigonometry

sin, cos, tan, and their inverses (arcsin, arccos, arctan). Works in degrees, radians, or gradians. Includes hyperbolic trigonometric functions.

Example: sin(π/2) = 1, cos(60°) = 0.5

📊 Logarithms & Exponents

Natural logarithm (ln), base-10 logarithm (log), exponential function (eˣ), power functions (x², x³, xʸ), and roots (√, ∛, ⁿ√).

Example: log(100) = 2, e² ≈ 7.389

📈 Statistics

Mean, median, standard deviation, variance, permutations (nPr), combinations (nCr), factorial (n!), and probability calculations.

Example: 5! = 120, ₁₀C₃ = 120

🔢 Number Systems

Convert between decimal, binary, octal, and hexadecimal systems. Perform bitwise operations (AND, OR, XOR, NOT) and two's complement calculations.

Example: 255 decimal = FF hexadecimal

🧮 Calculus & Algebra

Solve equations, calculate derivatives, work with matrices, perform complex number operations, and handle algebraic expressions.

Example: (3+4i) × (2-5i) = 26-7i

📏 Unit Conversions

Convert between degrees and radians, perform coordinate transformations (polar to rectangular), and handle various measurement conversions within calculations.

Example: 180° = π radians, 90° = π/2 radians

Common Calculation Examples

📐

Geometry Problems

Calculate areas, volumes, angles, and distances. Solve right triangle problems using trigonometric functions and Pythagorean theorem.

Example: Area of circle = π × r², Hypotenuse = √(a² + b²)

🔢

Algebraic Equations

Solve linear, quadratic, and polynomial equations. Calculate function values, work with variables, and simplify complex algebraic expressions.

Example: Solve 2x² + 3x - 5 = 0 using quadratic formula

📊

Statistical Analysis

Calculate mean, median, mode, standard deviation, variance, and correlation coefficients for data sets. Perform probability calculations.

Example: Standard deviation = √[Σ(x - μ)²/(n-1)]

💡

Electrical Engineering

Calculate circuit values using Ohm's Law, power calculations, impedance in AC circuits, and digital logic operations in binary/hexadecimal.

Example: V = I × R, P = V × I, 1010₂ AND 1100₂ = 1000₂

🧪

Chemistry Calculations

Calculate molar masses, solution concentrations, pH values, reaction stoichiometry, and gas law calculations using scientific notation and logarithms.

Example: pH = -log[H⁺], PV = nRT

💰

Financial Mathematics

Calculate compound interest, loan payments, investment returns, depreciation, and financial ratios using exponential and logarithmic functions.

Example: A = P(1 + r/n)ⁿᵗ for compound interest

Key Features of Our Scientific Calculator

🧮 Comprehensive Functions

Over 50 mathematical functions covering algebra, trigonometry, statistics, calculus, and number system conversions in one integrated tool.

📱 Intuitive Interface

Clean, organized layout with logical grouping of functions. Works perfectly on desktop, tablet, and mobile devices for calculations anywhere.

📝 Calculation History

View and reuse previous calculations. Perfect for checking work, making corrections, or using intermediate results in subsequent calculations.

💾 Memory Functions

Multiple memory registers (M+, M-, MR, MC) for storing intermediate results during complex, multi-step calculations.

🔢 Multiple Number Systems

Switch between decimal, binary, octal, and hexadecimal systems. Essential for computer science, programming, and digital electronics.

💻 No Installation Required

Access directly from any browser—no software to download, no accounts to create. Bookmark it for instant access whenever calculations are needed.

Frequently Asked Questions

How accurate are the calculations?

Our calculator uses double-precision floating-point arithmetic (64-bit), providing approximately 15-17 significant digits of precision. This is the standard used in most scientific and engineering applications. Trigonometric and logarithmic functions are calculated using industry-standard algorithms for maximum accuracy.

Can I use this calculator for exams or tests?

This depends on your institution's policies. Many schools and testing centers allow online calculators for homework and practice, but may restrict them during formal exams. Always check with your instructor or exam guidelines. For offline use, consider downloading a calculator app or using a physical scientific calculator.

How do I enter complex expressions?

Use parentheses to control order of operations. For example, to calculate (2+3)×4, enter exactly as shown. For exponents, use the xʸ button or ^ symbol. For functions like sin or log, enter the function followed by the value in parentheses: sin(45) or log(100). The calculator follows standard mathematical precedence rules.

What's the difference between degrees and radians?

Degrees divide a circle into 360 parts, while radians use the ratio of arc length to radius (2π radians = 360°). Use degrees for most practical applications and navigation. Use radians for calculus, physics, and advanced mathematics. Our calculator lets you switch between modes—ensure you're using the correct setting for your calculations.

Can I save my calculations?

While we don't have permanent storage (for privacy reasons), your calculation history persists during your browser session. You can copy results to your clipboard or take screenshots for reference. For regular use, consider bookmarking the calculator and using browser features to keep frequently used calculations accessible.