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Alona Tool – Free Online Tools

Scientific Calculator

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Apple-inspired full scientific calculator supporting trigonometry (sin, cos, tan in deg/rad), logarithms (log, ln), powers, square roots, factorials, and calculation history.

Browser-based: this tool works on your device and does not send your input to an Alona Tool server. See the Privacy Policy for details.
Fast Processing

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Example Usage & Test Cases

Trigonometry
Input Scenario:
sin(30°) + sqrt(16)
Generated Result:
4.5

How It Works

1

Evaluates mathematical expressions with strict operator precedence (PEMDAS) and native Math library precision.

Frequently Asked Questions

Yes, toggle between DEG and RAD with one click for trigonometry.

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Online Scientific Calculator with Clean Keyboard Layout

Engineered for students, engineers, and researchers who need accurate math without ad clutter.

Key Highlights:

  • Trig functions with DEG/RAD modes
  • Square root, exponent, log, ln, factorial
  • Calculation history log
  • Memory M+, M-, MR, MC