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Scientific Calculator

Free scientific calculator. Calculate sin, cos, tan, log, square root, factorial, powers and more. Works on all devices.

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Scientific Calculator
Free · Instant · No Signup

Formula

Formula
Scientific notation + trigonometry + logarithms + factorials
Supports sin/cos/tan (degrees), log base 10, square root, factorial (!), powers (xʸ), pi (π), and all basic arithmetic operations.

Frequently Asked Questions

What is sin 30 degrees?+
sin(30°) = 0.5. This calculator uses degrees (not radians). sin(30), cos(60), and tan(45) are common values.
How do I calculate factorial?+
Enter a number then press ! For example, 5! = 5×4×3×2×1 = 120.
What is log in this calculator?+
This uses log base 10 (common logarithm). log(100) = 2, log(1000) = 3.
Is this scientific calculator free?+
Yes, completely free with no signup required.

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