Free Online Calculator – Basic & Scientific Calculator
Basic & Scientific Calculator
A fast, simple and beautiful online calculator for basic arithmetic, scientific calculations and step-by-step results.
Step-by-Step
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History
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What Is a Basic Calculator?
A basic calculator is a digital tool used to perform common mathematical operations such as addition, subtraction, multiplication and division. This calculator also includes scientific functions for more advanced mathematical problems.
Basic Calculator Operations
- Addition (+)
- Subtraction (−)
- Multiplication (×)
- Division (÷)
- Percentage (%)
How to Use This Scientific Calculator
Enter numbers using the calculator buttons or your keyboard. Choose a scientific function when needed and press the equals button to calculate the answer.
Addition
Addition combines two or more numbers.
Subtraction
Subtraction finds the difference between numbers.
Multiplication
Multiplication is repeated addition and is represented by ×.
Division
Division determines how many times one number is contained in another number.
Scientific Calculator Functions
Square Root
The square root function finds a number which, when multiplied by itself, produces the original number.
Power Calculation
Use xʸ to raise a number to a specific power.
Trigonometric Functions
The calculator supports sine, cosine and tangent. You can switch between degrees and radians using the DEG/RAD buttons.
Logarithm
The log function calculates the base-10 logarithm while ln calculates the natural logarithm.
Factorial
Factorial multiplies a positive integer by every positive integer below it.
Step-by-Step Calculation Process
This calculator displays the calculation process after you press the equals button. For example, a calculation such as 10 + 5 × 2 is evaluated according to mathematical operator precedence.
= 10 + 10
= 20
Frequently Asked Questions
Is this calculator free?
Is this calculator free?
Yes. This calculator runs directly in your browser and does not require a subscription or external software.
Can I use this calculator on mobile?
Can I use it on a phone or tablet?
Yes. The calculator is responsive and automatically adapts to mobile, tablet and desktop screens.
Does it support scientific calculations?
Does it support scientific calculations?
Yes. It supports trigonometry, logarithms, square roots, powers, factorials, percentages, π, e and reciprocal values.
What are DEG and RAD modes?
What do DEG and RAD mean?
DEG means degrees and RAD means radians. These modes affect trigonometric calculations such as sine, cosine and tangent.
Can I use my keyboard?
Can I use keyboard shortcuts?
Yes. Numbers and standard arithmetic operators can be entered using your keyboard. Press Enter to calculate and Backspace to delete the last character.
Does the calculator show calculation steps?
Does it show the calculation process?
Yes. The Step-by-Step panel shows the entered expression, substituted values and final result.