Scientific Calculator
A free scientific calculator with trigonometric, logarithmic and power functions, right in your browser.
Your files are processed locally in your browser. They are not uploaded to our servers.
How to use
- Enter numbers and operators using the on-screen buttons, just like a physical calculator.
- Use the scientific function buttons — sin, cos, tan, log, ln, √, x², xʸ — for advanced calculations.
- Toggle between Degrees and Radians for trigonometric functions.
What is this tool?
Scientific Calculator provides everyday arithmetic plus common scientific functions — trigonometry, logarithms, powers, roots and reciprocals — in a browser-based calculator that works like a physical device. Calculations are evaluated step by step as you press buttons, with no server involved.
Common uses
- Quick trigonometry or logarithm calculations for homework or work
- Calculating powers and roots without a physical calculator on hand
- Everyday arithmetic when you need a calculator on any device
- Checking scientific or engineering calculations
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FAQ
Does this support typing full expressions like a formula?
No — like a physical calculator, it evaluates operations step by step as you press buttons, rather than parsing a full typed expression with operator precedence.
What's the difference between Degrees and Radians mode?
This affects how the sin, cos and tan functions interpret the number you enter — in Degrees mode, 90 means 90°, while in Radians mode it means 90 radians. Make sure the mode matches what your calculation expects.
Why do some calculations show "Error"?
This appears for undefined operations, like dividing by zero or taking the square root of a negative number.