How do I use the scientific calculator?

Enter numbers and use the function buttons for calculations. The calculator supports trigonometric functions (sin, cos, tan), logarithms (log, ln), powers, roots, and memory operations. Click 'Rad' to toggle between radians and degrees mode for trigonometric calculations.

What is the difference between radians and degrees?

Radians and degrees are two units for measuring angles. One complete circle equals 360 degrees or 2π radians. In mathematics and physics, radians are often preferred. You can switch between modes using the 'Rad' button on the calculator.

How do I calculate sine, cosine, or tangent?

Enter an angle value, then click the sin, cos, or tan button. Make sure you're in the correct mode (radians or degrees) for your calculation. For inverse functions (arcsin, arccos, arctan), use the asin, acos, or atan buttons.

What does the memory function do?

Memory functions allow you to store and recall values. M+ adds the current value to memory, M- subtracts it, MR recalls the stored value, and MC clears the memory. This is useful for complex calculations involving intermediate results.

Free Scientific Calculator Online

Advanced scientific calculator with trigonometric functions, logarithms, exponentials, and memory operations. Perfect for students, engineers, and scientists. Calculate complex math expressions instantly online.

RAD

Click "Rad" to toggle between Radians and Degrees

Scientific Calculator Features

🔢 Trigonometric Functions

Basic functions: Calculate sine (sin), cosine (cos), and tangent (tan) of angles
Inverse functions: Find angles using arcsin (asin), arccos (acos), and arctan (atan)
Angle modes: Switch between radians and degrees for accurate trigonometric calculations

📊 Logarithmic & Exponential Functions

Common logarithm (log): Base-10 logarithm calculations
Natural logarithm (ln): Base-e logarithm for calculus and physics
Constants: Quick access to π (pi) and e (Euler's number)

⚡ Power & Root Functions

Square (x²): Calculate the square of any number
Cube (x³): Calculate the cube of any number
Any power (xʸ): Raise numbers to any exponent
Roots: Square root (√) and cube root (∛) calculations

💾 Memory Operations

M+: Add current value to memory
M-: Subtract current value from memory
MR: Recall stored value from memory
MC: Clear memory storage

How to Use the Scientific Calculator

Basic Operations:

Enter numbers using the number pad and use the standard operators (+, −, ×, ÷) for basic calculations. Click the equals (=) button to get your result.

Scientific Functions:

Enter a number first, then click the function button (sin, cos, log, √, etc.). For example, to calculate sin(30°), enter 30, switch to DEG mode, then click sin.

Angle Mode Selection:

Click the Rad button to toggle between Radians (RAD) and Degrees (DEG) mode. The current mode is displayed at the top of the calculator. Use DEG for most geometry problems and RAD for calculus and physics.

Complex Expressions:

You can build complex mathematical expressions using parentheses. For example: (5 + 3) × 2 or sin(45) + cos(30). The calculator follows standard order of operations (PEMDAS).

Memory Functions:

Store intermediate results in memory for multi-step calculations. Use M+ to add to memory, M- to subtract, MR to recall, and MC to clear the stored value. The memory indicator appears when a value is stored.

Common Scientific Calculator Uses

Physics Problems

Calculate projectile motion, wave equations, electromagnetic formulas, and thermodynamic calculations using trigonometric and exponential functions.

Engineering Calculations

Solve structural equations, electrical circuit analysis, signal processing, and mechanical design calculations with advanced mathematical functions.

Trigonometry

Find angles, calculate distances, solve triangle problems, and work with periodic functions in both degree and radian measurements.

Calculus

Evaluate limits, derivatives, and integrals involving exponential, logarithmic, and trigonometric functions for advanced mathematics.

Statistics

Calculate logarithmic scales, exponential growth/decay, and perform statistical transformations for data analysis.

Chemistry

Solve pH calculations, chemical kinetics, thermochemistry equations, and equilibrium problems using logarithmic functions.

Frequently Asked Questions

Is this scientific calculator free to use?

Yes, our scientific calculator is completely free with no registration, download, or installation required. Use it directly in your web browser on any device including computers, tablets, and smartphones.

When should I use radians vs degrees?

Use degrees for most geometry problems, navigation, and everyday angle measurements (e.g., a right angle is 90°). Use radians for calculus, physics, and advanced mathematics where angular relationships are more naturally expressed (e.g., a right angle is π/2 radians). The calculator displays the current mode (RAD or DEG) at the top.

Can I use this calculator for homework and exams?

This calculator is excellent for homework, problem-solving, and checking your work. However, for exams, check with your instructor as many tests require specific calculator models or don't allow calculator use at all.

What's the difference between log and ln?

log is the common logarithm (base 10), useful for pH calculations, decibels, and Richter scale.ln is the natural logarithm (base e ≈ 2.718), used in calculus, exponential growth/decay, and continuous compounding. Both are inverse operations of exponentials.

How accurate are the calculations?

Our scientific calculator provides highly accurate results with up to 10 decimal places of precision. It uses the Math.js library for reliable mathematical computations suitable for academic, professional, and engineering applications.

Scientific Calculator Tips & Tricks

💡Use parentheses: Always use parentheses to ensure correct order of operations in complex expressions like (2+3)×(4-1)
💡Check your mode: Before trigonometric calculations, verify you're in the correct angle mode (RAD or DEG)
💡Store intermediate results: Use memory functions (M+, M-) for multi-step calculations to maintain precision
💡Common conversions: To convert degrees to radians, multiply by π/180. To convert radians to degrees, multiply by 180/π
💡Use constants: Click π or e buttons for accurate mathematical constants instead of approximations