Skip to content
Calculatordev.com

Scientific Calculator

Scientific Calculator

Section titled “Scientific Calculator”

A free online scientific calculator to perform trigonometric, logarithmic, exponential, and advanced math calculations instantly.

Ans = 0

Looking for basic calculations? Go to Simple Calculator →

Also available as: Advanced Calculator • Science Math Calculator

Guide: Simple Calculator vs Scientific Calculator

How to use the scientific calculator (steps)

Section titled “How to use the scientific calculator (steps)”

If you’re trying to “show your work”, a good workflow is:

  1. Enter the full expression using parentheses for clarity.
  2. Verify settings like DEG/RAD before trig calculations.
  3. Press equals and sanity-check the result using a second method (unit conversion, rough estimation, or a simpler equivalent expression).

Tip: For fully custom expressions with variables, use the Expression Calculator to define variables (like x=5) and evaluate more complex formulas.

Keyboard-friendly input

Section titled “Keyboard-friendly input”

You can type directly into the input:

  • Use * for multiplication and / for division
  • Use parentheses ( ) to force order of operations
  • Press Enter to accept the current result

Common examples

Section titled “Common examples”

Trigonometry (degrees vs radians)

Section titled “Trigonometry (degrees vs radians)”
  • In DEG mode: sin(30) = 0.5
  • In RAD mode: sin(30) ≈ -0.988 (because 30 is interpreted as 30 radians)

Logarithms (log vs ln)

Section titled “Logarithms (log vs ln)”
  • log(1000) = 3 (base 10)
  • ln(e^2) = 2 (natural log)

Powers and roots

Section titled “Powers and roots”
  • 2^10 = 1024
  • sqrt(256) = 16

Use Cases

Section titled “Use Cases”

This scientific calculator is commonly used by students, engineers, teachers, and professionals for solving complex math problems in trigonometry, calculus, physics, and engineering.

Supported Functions

Section titled “Supported Functions”
  • Basic Arithmetic: +, -, ×, ÷, power, modulus
  • Trigonometric Functions: sin, cos, tan, asin, acos, atan
  • Logarithmic Functions: log (base 10), ln (natural log)
  • Powers and Roots: x^y, sqrt, cbrt
  • Special Functions: factorial, absolute value, exponential
  • Constants: π (pi), e (Euler’s number)
  • Angle Modes: DEG (degrees), RAD (radians), GRAD (gradians)

Examples

Section titled “Examples”
  • sin(30°) = 0.5
  • log(1000) = 3
  • sqrt(256) = 16
  • 2^10 = 1024
  • 5! = 120
  • cos(0) = 1

Common Mistakes & Tips

Section titled “Common Mistakes & Tips”

Wrong Angle Mode: The most common error is using the wrong angle mode. Calculating sin(30) in RAD mode gives 0.988 (incorrect), while DEG mode gives 0.5 (correct). Always verify your mode before trigonometric calculations.

Forgetting Parentheses: Use parentheses for clarity. 2^3+1 = 9, but 2^(3+1) = 16.

Confusing log and ln: log is base 10, ln is base e (natural logarithm). They give different results.

Factorials on Decimals: Factorials only work on non-negative integers. 5! = 120, but 5.5! will cause an error.

Frequently Asked Questions

Section titled “Frequently Asked Questions”

Is this scientific calculator allowed in exams?

Section titled “Is this scientific calculator allowed in exams?”

This is an online tool requiring internet access. Most standardized tests allow physical calculators but not internet-connected devices. Check your specific exam guidelines.

Does it support radians and degrees?

Section titled “Does it support radians and degrees?”

Yes! Switch between DEG (degrees), RAD (radians), and GRAD (gradians) modes. Always verify your angle mode before trigonometric calculations.

Can I use this calculator on my phone?

Section titled “Can I use this calculator on my phone?”

Yes, the calculator is fully responsive and works on all devices - smartphones, tablets, and desktop computers.

Is the calculator accurate?

Section titled “Is the calculator accurate?”

Yes, it uses JavaScript’s built-in Math library for high precision. Very large numbers or extremely precise decimals may have floating-point limitations.

How do I calculate trigonometric functions?

Section titled “How do I calculate trigonometric functions?”

Type the function name followed by the value in parentheses: sin(30), cos(45), tan(60). Ensure your angle mode (DEG/RAD) is set correctly.

Section titled “Related Calculators”
Section titled “Related guides”