Online Calculator

বাংলা

Online Calculator Add, Subtract,
Multiply, Divide & %

Calculator · Where to use · Best Practices · Details · FAQ · Related tools

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It supports the core operations—addition, subtraction, multiplication, division—plus percentages, parentheses, memory keys, and keyboard input. Everything runs locally in your browser for instant, private results. Use this free online calculator Do fast, accurate math with our Calculator.

Calculator – Frequently Asked Questions

Yes. After the first load, everything runs in your browser.

No. We don’t send your input anywhere — it stays on your device.

A number followed by % is a percentage of 1. For example, 12% becomes 12/100, so 12% * 200 = 24.

Basic arithmetic with parentheses: + × ÷ (also * and /), decimals, and %.

That’s normal with floating-point math in browsers. You may see tiny rounding artifacts (e.g., 0.30000000000000004).

Yes. It works in any modern mobile or desktop browser.

Not in this tool — it keeps things simple. For advanced math, use a scientific calculator.