About this tool
Scientific calculator with full keyboard support.
The raw.tools Calculator works as a scientific calculator directly in your browser. It supports all basic arithmetic operations plus scientific functions: sin, cos, tan, log, ln, square root, powers and factorials. The full keyboard is supported — type expressions naturally without clicking buttons. A calculation history panel lets you refer back to previous results.
Example
2^10 → 1,024 · (15 + 5) × 3 − 2 → 58
How to use
- Type an expression on your keyboard or click buttons.
- Press Enter or = to evaluate.
- Use the history panel to recall previous calculations.
- Clear the display with Esc or the C button.
Features
- Basic arithmetic (+ − × ÷)
- Trig functions (sin, cos, tan + inverses)
- Logarithms (log, ln)
- Square root and powers (^)
- Full keyboard support
- Calculation history
Frequently Asked Questions
Can I use the keyboard?+
Yes. Numbers, operators (+−×÷), decimal point and functions are all keyboard-accessible. Press Enter to calculate.
What trig functions are available?+
sin, cos, tan and their inverses (arcsin, arccos, arctan). Angles are in degrees by default.
How do I enter a power like 2⁸?+
Press the ^ button or type ** for exponentiation: 2^8 = 256.
Is there a calculation history?+
Yes. Recent calculations are displayed below the main display so you can refer back without retyping.
What order of operations does it follow?+
Standard PEMDAS/BODMAS: parentheses, exponents, multiplication and division left-to-right, then addition and subtraction.
Does it support scientific notation?+
Yes. Enter 1.5e10 for 1.5 × 10¹⁰. The result also displays in scientific notation for very large outputs.