Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms, and advanced functions.
Scientific Calculator
Scientific Calculator
Trigonometry, logarithms, powers, and more
Result
Smart Insights
Personalized takeaways from your numbers.
The Formula Behind It
Varies by operationVariables
- PEMDAS order of operations
How It Works
- Use on-screen buttons or your keyboard to enter expressions.
- Toggle DEG/RAD mode for trigonometric functions.
- Apply functions like sin, cos, tan, log, sqrt, and powers.
- Press equals or Enter to compute the result.
About Scientific Calculator
Our free online Scientific Calculator provides advanced mathematical functions beyond basic arithmetic — trigonometry, logarithms, exponentials, powers, roots, and constants π and e. Ideal for students, engineers, and professionals who need quick calculations without installing software.
Supported Functions
Trigonometric: sin, cos, tan (with degree/radian toggle). Logarithmic: log (base 10), ln (natural log). Power operations: x², x^y, √x. Additional: factorial, reciprocal, negation, and constants π ≈ 3.14159 and e ≈ 2.71828.
Keyboard Shortcuts
Type numbers and operators directly. Press Enter to calculate, Escape to clear, and Backspace to delete the last digit. Keyboard input makes extended calculations faster than clicking alone.
Precision and Limitations
Results use IEEE 754 double-precision floating point (~15 significant digits). For extremely large numbers, results may display in scientific notation. This tool is excellent for homework and professional estimates but verify critical engineering calculations independently.
Frequently Asked Questions
What functions does this scientific calculator support?
Trigonometry (sin, cos, tan), logarithms, exponentials, powers, roots, factorials, and constants (π, e).
Can I use keyboard shortcuts?
Yes. Use number keys, operators, and Enter to calculate. Escape clears the display.
Does it support radians and degrees?
Yes. Toggle between DEG and RAD modes for trigonometric calculations.
Is calculation history saved?
The current session history is shown on screen but not persisted between visits.
Can I use this calculator offline?
Yes, when installed as a PWA, the scientific calculator works offline.
How precise are calculations?
Results use JavaScript double-precision floating point (about 15-17 significant digits).
Does it support parentheses?
Yes. Use parentheses to control order of operations in complex expressions.
What is the order of operations?
PEMDAS — Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.
Can I copy results?
Click the result or use the copy button to copy the value to your clipboard.
Is this suitable for exams?
Check your exam rules. Some exams prohibit calculators or require specific approved models.