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Scientific Calculator

Use this free online scientific calculator to evaluate mathematical expressions with trigonometry, exponents, logarithms, square roots, and more. Works instantly in your browser.

Scientific Calculator

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Formula

Evaluates any standard mathematical expression

Enter an expression using operators (+, -, *, /, ^), functions (sin, cos, tan, log, ln, sqrt), and parentheses.

Worked Example

Expression: sqrt(144) + 2^3 Step 1: sqrt(144) = 12 Step 2: 2^3 = 8 Step 3: 12 + 8 = 20 Result: 20

What Is a Scientific Calculator?

A scientific calculator handles advanced mathematical operations beyond basic arithmetic. It can evaluate expressions with trigonometric functions, logarithms, exponents, roots, and complex nested expressions. Scientific calculators are essential tools for students, engineers, and scientists.

Supports basic operations: addition, subtraction, multiplication, division
Handles exponents and roots: 2^3 = 8, sqrt(144) = 12
Evaluates trigonometric functions: sin, cos, tan (in radians by default)
Computes logarithms: log (base 10) and ln (natural log, base e)

This online scientific calculator replaces the need for a physical calculator. It is ideal for homework, exams, engineering calculations, and any situation where you need to evaluate complex mathematical expressions quickly.

You can also calculate changes using our Percentage Calculator, Fraction Calculator or Average Calculator.

Frequently Asked Questions

What operations are supported?

Addition, subtraction, multiplication, division, exponents (^), square roots (sqrt), trigonometric functions (sin, cos, tan), inverse trig functions, and logarithms (log, ln).

How do I enter exponents?

Use the ^ symbol. For example, 2^3 = 8, 10^-2 = 0.01, and e^1 = 2.718.

Are trigonometric functions in degrees or radians?

By default, this calculator uses radians. To convert degrees to radians, multiply by pi/180. For example, sin(90 degrees) = sin(90 × pi/180) = sin(pi/2) = 1.

What is the difference between log and ln?

log is the common logarithm (base 10), while ln is the natural logarithm (base e, approximately 2.718). For example, log(100) = 2 and ln(e) = 1.

Can I use parentheses for order of operations?

Yes. Parentheses control the order of evaluation. For example, 2 × (3 + 4) = 14, while 2 × 3 + 4 = 10. The calculator follows standard PEMDAS/BODMAS rules.

AI Assistant

Ask about this calculator

I can help you understand the scientific calculator formula, interpret your results, and answer follow-up questions.

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