Our online calculator lets you perform arithmetic, fractions, percentages, square roots, exponents, and more—all instantly, without page reload. It’s mobile-friendly, fast, and easy to use.

How It Works

Simply click or type numbers and select operations. The calculator updates results immediately using JavaScript, so you never need to reload the page. It also handles memory operations, plus/minus toggles, rounding, and constants like π.

Calculator Functions

Basic Arithmetic

Perform addition (+), subtraction (−), multiplication (×), and division (÷) quickly. Example: 5 + 3 = 8.

Calculate (=)

Press the equal button to see your result immediately without page reload.

Plus/Minus (+/-)

Toggle the sign of the displayed number. Example: 5 becomes -5 and vice versa.

Memory Operations (MC, MR, M+, M-)

Store numbers in memory (M+), recall them (MR), subtract from memory (M-), or clear memory (MC) for complex calculations.

Clear Entry (CE) & All Clear (AC)

CE clears the last entry; AC clears all entries and resets the calculator.

Square Root (√x)

Compute the square root of any number instantly. Example: √16 = 4.

Percentage (%)

Calculate percentages of any number. Example: 50% of 200 = 100.

Pi (π)

Use the constant π = 3.1415926536 for precise calculations involving circles and trigonometry.

Exponent (xy)

Raise a number to a power. Example: 2² = 4, 3³ = 27.

Rounding (R2, R0)

Round results to 2 decimal places (cents) or 0 decimal places (dollars) for financial calculations.

Delete / Backspace

Use the keyboard or virtual keypad to delete one character at a time from the right.

Copy Results

Select the results in the display and copy them to your clipboard for easy sharing or further use.

Example Calculations

Expression	Result
5 + 3 × 2	11
√49	7
10% of 250	25
2³	8
π × 2²	12.566

FAQ

1. Can I use this calculator on my phone?

Yes, it’s fully mobile-friendly and responsive for easy use on smartphones and tablets.

2. Do I need to reload the page for each calculation?

No, all calculations update instantly using JavaScript, without page reload.

3. Can I perform complex calculations with memory functions?

Yes, the memory buttons (M+, M-, MR, MC) allow multi-step calculations efficiently.

4. How do I round results?

Use R2 for 2 decimal places or R0 for whole numbers.

5. Is it safe to copy results?

Yes, simply highlight or use the copy button to store results in your clipboard.