Scientific Calculator
Full-featured scientific calculator with trig functions, logarithms, powers, roots, and constants. DEG/RAD toggle.
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v2.4.0-Stable∞
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0ms
Latency
100%
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All math runs in your browser.
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Use immediately without registration.
Instant Results
Evaluates expressions instantly.
Knowledge Base
Frequently Asked Questions
What is the difference between DEG and RAD mode?↓
In DEG mode, trigonometric functions expect angles in degrees (e.g., sin(90) = 1). In RAD mode, they expect radians (e.g., sin(π/2) = 1). Most everyday calculations use degrees; scientific and engineering work often uses radians.
What does log() calculate vs. ln()?↓
log() computes the base-10 logarithm (common log). ln() computes the natural logarithm (base e ≈ 2.71828). For example, log(100) = 2 and ln(e) = 1.
How do I calculate powers and roots?↓
Use the ^ operator for powers (e.g., 2^8 = 256). Use sqrt() for square roots. For other roots, use fractional exponents: the cube root of 27 = 27^(1/3) = 3.
What is the x² button?↓
The x² button appends **2 to the current expression, squaring the previous number or expression. For example, pressing 5 then x² gives 5**2 = 25.