Scientific Calculator
Evaluate mathematical expressions including trigonometry, logarithms, exponents, and more.
Did this tool work for you?
How to use this calculator
- 1
Type your mathematical expression in the input field.
- 2
Choose degrees or radians for trigonometric functions.
- 3
Use function names like sin(), cos(), log(), sqrt(), etc.
- 4
Combine operations freely: sin(45)^2 + cos(45)^2 = 1
Frequently asked questions
What functions are supported?
Trig: sin, cos, tan, asin, acos, atan, sinh, cosh, tanh. Logarithms: log (base 10), ln (natural), log2. Roots: sqrt, cbrt. Other: abs, ceil, floor, round, exp, pow, factorial, min, max, sign.
What constants are available?
pi (3.14159…), e (2.71828…), phi (golden ratio 1.61803…), tau (2π = 6.28318…).
How do I write exponents?
Use the ^ operator: 2^10 = 1024. Or use pow(2,10). You can also use ² and ³ symbols directly.
Is this safe — does it use eval()?
No. This calculator uses a custom recursive-descent parser with no eval() or Function(). Only mathematical operations are allowed.
Scientific calculator: functions, constants, and expressions
How to use the scientific
Use this scientific to valuate mathematical expressions including trigonometry, logarithms, exponents, and more. Enter your values above and get your result in seconds. The tool is free, works on all devices, and keeps your data private — nothing is stored or shared.
How the scientific works
The scientific calculator uses standard formulas used in mathematics, science, and engineering. Enter your inputs, and the tool calculates the result instantly in your browser. No server-side processing means your data stays on your device. Results update in real time as you change inputs.
Trigonometric functions
sin, cos, and tan take an angle and return a ratio. Their inverses (asin, acos, atan) do the reverse. The calculator supports both degrees and radians — switch the angle unit to match your context. Remember: sin²(x) + cos²(x) = 1 always.
Logarithms explained
log(x) computes the base-10 logarithm. ln(x) computes the natural logarithm (base e). log2(x) computes the binary logarithm. Common uses: decibels (20·log(ratio)), pH (−log([H⁺])), bits needed (log2(n)), exponential decay (ln).
Order of operations
This calculator follows standard PEMDAS/BODMAS: parentheses first, then exponents (^), then multiplication/division left to right, then addition/subtraction left to right. Use parentheses to make complex expressions unambiguous: sin(45)^2 vs sin(45^2).
Scientific: how it works
Built on well-established mathematical principles, this tool delivers accurate results for students, researchers, and professionals. Enter your values and get instant clarity without specialist software or manual arithmetic.
Who uses this tool?
Teachers, students, engineers, and data analysts use it to verify calculations, check homework, and solve problems faster. It is intuitive enough for beginners while comprehensive enough for professional use.
Learn more from an authoritative source:
WikipediaPercentage Calculator
Quickly calculate percentages, percentage change, and percentage of a total.
Fraction Calculator
Add, subtract, multiply, or divide two fractions and get the simplified result instantly.
Ratio Calculator
Simplify ratios, find missing values, and scale ratios up or down.
Average Calculator
Calculate mean, median, mode, range, and sum for up to 10 numbers.
Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →