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
How it works: Enter an expression using operators (+, -, *, /, ^), functions (sin, cos, tan, log, ln, sqrt), and parentheses.
Review and Methodology
This calculator runs locally in your browser. Inputs are converted into the units required by the formula, and the result is paired with supporting references so you can verify the method before using it for planning or estimates.
Worked Example
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.
Can I use this Scientific Calculator on my own web page?
You can. Look for the "Embed" button near the top of this calculator. It lets you pick a size, border style, and color palette, then gives you an iframe tag to paste into any webpage. The widget is responsive, loads fast, and costs nothing. More details at calculory.com/services/embed-calculators.
AI Assistant
Ask about this calculator
I can help you understand the scientific calculator formula, interpret your results, and answer follow-up questions.
Try asking
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