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Free online calculator. Perform basic math, percentages, and quick calculations right in your browser.
The online calculator handles fast, in-browser arithmetic — addition, subtraction, multiplication, division, percentages, and memory operations. It works with mouse clicks or full keyboard input.
Students, shoppers, office workers, parents, and travelers who need a calculator without installing one. It is also a fallback when a phone is busy or a physical calculator is not nearby.
It removes the friction of opening another app or finding a desk drawer for routine math. Memory functions also let you keep running totals during multi-step calculations like a meal split or a budget review.
It answers questions like "What does this list of expenses add up to?", "What is 22% of $214?", and "What is 4,580 divided by 8?"