Basic and scientific calculations made simple
Switch between basic arithmetic and advanced scientific calculations with one click
Track all your calculations and quickly reuse previous results
Full keyboard shortcuts for faster calculations without using the mouse
Trigonometry, logarithms, exponentials, and more advanced math functions
See your full calculation expression as you type for better accuracy
Perform complex calculations with proper order of operations
Basic mode provides standard arithmetic operations (addition, subtraction, multiplication, division). Scientific mode adds advanced functions like trigonometry (sin, cos, tan), logarithms, exponentials, square roots, and more. Switch between modes by clicking the Scientific button.
You can type numbers (0-9) directly, use +, -, *, / for operations, press Enter or = to calculate, Escape to clear, and Backspace to delete. This makes calculations much faster than clicking buttons.
Yes! Click the History button to see all your previous calculations. You can click any history item to load that result into the calculator and continue calculating from there.
Use parentheses to group operations and control the order of calculation. For example, (5 + 3) * 2 = 16 is different from 5 + 3 * 2 = 11. The calculator follows standard mathematical order of operations.
The scientific mode includes trigonometric functions (sin, cos, tan), inverse trig functions, logarithms (log, ln), exponentials (e^x), square root, power functions, pi, and factorial. Perfect for students and professionals.
The calculator can handle very large numbers and complex expressions. However, results are limited by JavaScript's number precision (about 15-17 significant digits). For most everyday calculations, this is more than sufficient.
Yes, when viewing your history (click the History button), scroll to the bottom and click "Clear All" to remove all saved calculations. This won't affect your current calculation.
Once the calculator page is loaded, all calculations are performed locally in your browser. However, you need an internet connection to initially load the page. Your calculation history is stored locally and not sent to any server.