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Utilities

Basic Calculator

A basic calculator online free for everyday sums — add, subtract, multiply and divide with this simple calculator, right in your browser. Keep the calculator open while you work — calculator online free use covers homework, shopping totals and work sums.

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How the Basic Calculator Works

With the calculator open, type with the keypad or your keyboard — this basic calculator online free to use follows the standard order of operations, so multiplication and division happen before addition and subtraction. For example, 2 + 3 × 4 gives 14, and 10 − 2 × 3 gives 4. Many calculators online free for basic sums hide the keypad behind ads; this one keeps the keypad front and centre, and the live answer updates as you type.

Use the full screen button to open the calculator online free full screen — handy on a small laptop screen or when you share your screen in class. The memory keys (MC, MR, M+, M−) store a running total, and the history below keeps your last sums, so you can check a figure without retyping it. Most calculators online free to use still ask you to install an app; this one runs in the browser, and calculator online free use means no account, no payment and no download. With the calculator open on your screen, there is no loading and no waiting.

Frequently Asked Questions

Is this basic calculator online free to use?
Yes — this basic calculator online free to use, with no sign-up, no payment and no download. Calculator online free use is unlimited: use it as often as you like, on any device with a browser. There are no limits on sums, no account to create and no ads blocking the keypad — just open the page and start calculating.
How do I open this calculator in full screen?
Tap the full screen button above the keypad to open the calculator online free full screen. The calculator fills your whole screen, so the keys are bigger and easier to tap. Press Escape or the same button again to leave full screen. Your sums and history stay put while the calculator open in full screen, and your keyboard keeps working.
What can this simple calculator do?
This simple calculator adds, subtracts, multiplies and divides, handles decimals and percentages, and follows the correct order of operations, so 2 + 3 × 4 is 14. It also has memory keys, a calculation history and full keyboard support. Like most calculators online free to try, it runs entirely in your browser — nothing is sent to a server.
Do I need to download anything to use this calculator?
No — there is nothing to download and nothing to install. This is a calculator online free use tool that runs entirely in your browser, so it works on Windows, Mac, Android and iPhone alike. Unlike many calculators online free to download, this one needs no app and no account — just open the page, and it is ready.

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