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Scientific Calculator

Free online scientific calculator with support for trigonometry, logarithms, exponents, and complex expressions.

Updated

What is the Scientific Calculator?

Our Scientific Calculator is a powerful, browser-based tool designed to handle complex mathematical expressions with ease. Unlike basic calculators that limit you to one operation at a time, this tool allows you to type or click to input full formulas, respecting the proper order of operations (PEMDAS/BODMAS).

Whether you are a student working on algebra, trigonometry, or calculus homework, an engineer needing quick computations, or a professional dealing with logarithms and exponents, this calculator provides the exact functionality you need without requiring a physical device or bulky software.

Key Features

  • Expression-Based Evaluation: Write out the entire equation before hitting calculate.
  • Trigonometric Functions: Full support for sin, cos, tan, and their inverse functions.
  • Logarithms & Exponents: Calculate natural logs (ln), base-10 logs (log), and powers (^).
  • Constants: Built-in support for pi and e.
  • Degrees & Radians: Easily switch between angle modes for trigonometric calculations.
  • Calculation History: Keep track of your last few calculations for easy reference.

How it works

This scientific calculator processes mathematical expressions safely and accurately directly in your browser.

  1. Inputting Expressions You can either type your formula directly into the input field or use the provided keypad buttons. The calculator supports implicit multiplication, meaning 2pi is automatically understood as 2 _ pi, and 3(4+5) is evaluated as 3 _ 9.

  2. Supported Functions and Operators

  • Basic Math: +, -, *, /, % (modulo), ^ (power)
  • Trigonometry: sin, cos, tan, asin, acos, atan
  • Logarithms: log (base 10), ln (natural log)
  • Other: sqrt (square root), ! (factorial), exp (exponential)
  • Constants: pi (≈ 3.14159), e (≈ 2.71828)
  1. Angle Modes

When working with trigonometric functions, you can toggle between Degrees and Radians. The mode selector sits above the keypad. If you are calculating sin(30) in Degrees mode, the result will be 0.5. In Radians mode, sin(30) evaluates to approximately -0.988.

  1. Order of Operations The calculator strictly adheres to the standard mathematical order of operations:

  2. Parentheses ()

  3. Functions (e.g., sqrt, sin)

  4. Exponents ^ and Factorials !

  5. Multiplication * and Division /

  6. Addition + and Subtraction `-

Examples

Trigonometric Calculation

Calculate the sine of 30 degrees.

sin(30)
 
0.5

Complex Expression

Evaluate a mixed expression with exponents and constants.

2^3
 
8

Frequently asked questions

How do I calculate the square root of a number?

You can calculate the square root by using the sqrt function. Type sqrt(16) and the calculator will return 4. You can also use fractional exponents, such as 16^(1/2).

What is the difference between 'log' and 'ln'?

In this calculator, log refers to the base-10 logarithm (common logarithm), while ln refers to the natural logarithm (base e). For example, log(100) equals 2, and ln(e) equals 1.

Does this calculator support implicit multiplication?

Yes, you can omit the multiplication sign in certain contexts. For example, 2pi is automatically interpreted as 2 _ pi, and 3(4+5) is interpreted as 3 _ (4 + 5).

How do I use the factorial function?

You can use the exclamation mark ! to calculate factorials. For example, entering 5! will multiply 5 by all positive integers below it (5 x 4 x 3 x 2 x 1), resulting in 120. Factorials are only supported for non-negative integers.

Why is my trigonometric calculation returning an unexpected value?

This is usually due to the angle mode setting. Make sure you check whether the calculator is in Degrees or Radians mode. If you are calculating sin(30) and expecting 0.5, the calculator must be set to Degrees. If it is in Radians, it will evaluate the sine of 30 radians instead.

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