Scientific Calculator — Sin, Cos, Tan, Log, Roots & More Online
A full-featured scientific calculator with trigonometric functions, logarithms, exponents, square roots, factorials, memory banks, and calculation history — all running instantly in your browser. No app download, no login, no data stored.
⚡ All calculations happen in your browser. Zero data stored.
What is the Scientific Calculator?
The Scientific Calculator by WorldOfTools is a highly advanced, free online mathematical utility designed for students, engineers, and scientists. Built with precision in mind, it executes calculations instantly in your browser without requiring a page reload.
🔬 Common Math Constants & Formulas
Quickly reference these essential constants and functions used in advanced mathematics and physics:
| Constant/Function | Value / Description |
|---|---|
| Pi (π) | ~3.14159265 (Circle Ratio) |
| Euler's No. (e) | ~2.71828182 (Natural Log Base) |
| Logarithm (log) | Common Log (Base 10) |
| Natural Log (ln) | Logarithm (Base e) |
The Evolution of Calculation
Mathematics is the language of the universe, and the tools we use to speak it have evolved from the abacus to advanced digital platforms. While basic calculators handle arithmetic, our tool provides a robust platform for physics, engineering, and data science.
📐 Radian Alert!
In calculus and higher-level physics, Radians are the standard. If your sin(90) isn't returning 1, you're likely in Radian mode. Toggle the mode button in the display to fix this.
Verified Math Audit
This tool strictly adheres to standard BODMAS/PEMDAS rules. Precision is maintained up to 15 significant decimal digits. All data is processed locally. Last Updated: May 2026.
Key Functions & Capabilities
- Trigonometry: Calculate Sine (sin), Cosine (cos), and Tangent (tan) instantly. The calculator operates in Radians by default, ensuring compatibility with standard higher-math formulas.
- Logarithms & Exponents: Effortlessly compute Natural Logs (ln), Base-10 Logs (log), powers (x^y), squares (x²), and the mathematical constant 'e' (Euler's number).
- Roots & Constants: Access square roots (√), Pi (π ≈ 3.14159), and factorial operations (!) for probability and statistics.
- Memory Functions: Use parentheses ( ) to enforce strict order of operations (BODMAS/PEMDAS) for complex, multi-step equations.
Frequently Asked Questions
Are trigonometric functions calculated in Degrees or Radians?
By default, standard scientific functions like sin(), cos(), and tan() in this calculator operate using Radians, which is the standard for JavaScript and advanced calculus. If you need degrees, you must convert the value manually (Degrees × π / 180).
What is the order of operations?
The calculator strictly adheres to the standard BODMAS / PEMDAS rules. It will evaluate Parentheses first, then Exponents (Orders/Roots), followed by Multiplication and Division, and finally Addition and Subtraction.
Is there a limit to how large a number can be calculated?
The calculator uses standard double-precision 64-bit floating-point format (IEEE 754). It is highly accurate up to 15-17 significant decimal digits. Extremely large factorials or exponents exceeding browser memory limits will return "Infinity".
Is this calculator free to use?
Yes, 100% free with no intrusive popup ads, no registration required, and no limits on the number of calculations you can perform.