Calculator
Use the interactive calculator to perform arithmetic with a clean, responsive interface.
How to use the Calculator
This is a clean, keyboard-friendly arithmetic calculator that supports standard math operations. You can click the numpad or type expressions directly from your keyboard.
- 1
Click numbers and operators
Use the numpad on screen to build your expression. Click digits, then
+,−,×, or÷. You can also type directly using your keyboard with+,-,*,/. - 2
Press = or Enter to evaluate
Click the
=button or press Enter on your keyboard to compute the result. The answer appears in the display at the top. - 3
Press Clear to reset
Click the Clear button to wipe the display and start a new calculation at any time.
Frequently asked questions
Does this calculator support keyboard input?
Yes — you can type numbers and operators directly from your keyboard. Press Enter to evaluate. Use +, -, *, and / for operators. The display updates as you type.
What is the order of operations?
The calculator evaluates expressions using standard mathematical operator precedence: multiplication and division are performed before addition and subtraction. For example, 2 + 3 * 4 = 14, not 20.
Can I calculate decimals and fractions?
Yes — use the . button or key for decimal input. For fractions, enter them as division: 1/3 gives 0.3333.... For mixed numbers like 1½, compute as 1 + 1/2.
How do I calculate a percentage?
Divide by 100. To find 15% of 200, enter 200 * 15 / 100 which equals 30. To add 20% tax to a price of 50, enter 50 * 1.2 which equals 60.
How does this compare to a phone calculator?
This calculator supports full arithmetic expressions typed all at once and evaluates them with correct precedence. Most phone calculators are step-by-step (left-to-right), so 2 + 3 * 4 on a phone might give 20 rather than the mathematically correct 14.