Does it support physical keyboard input?
Yes! Type numbers and operators (+, -, *, /, ^, enter) directly on your physical keyboard.
Tool Categories
Scientific Calculator - Math & Trigonometry | 1ClickTools
Advanced online scientific calculator for algebra, trigonometry, logarithms, exponentials, and engineering math. 100% in browser.
About This Tool
Whether you are solving high school trigonometry homework, computing engineering log functions, calculating compound powers, or performing statistics calculations, having an accessible scientific calculator is essential. Our browser-native Scientific Calculator features a full digital keypad with support for sine (sin), cosine (cos), tangent (tan), inverse trig functions (asin, acos, atan), natural log (ln), log10, exponentials (e^x, x^y), square roots (√), factorials (!), radians, degrees, and memory registers (MS, MR, MC, M+). Because mathematical operations execute locally in client-side JavaScript using native `Math` functions, calculations complete instantaneously with zero server latency or network calls.
Frequently Asked Questions
Is my math input saved on a server?
No. 1ClickTools calculates expressions 100% locally in your browser memory.
How do I switch between Degrees and Radians?
Click the 'DEG / RAD' button in the top left of the keypad.
What is the difference between log and ln?
`log` calculates Base-10 logarithms, while `ln` calculates natural logarithms using Euler's number (e ≈ 2.71828).
Can I store numbers in memory?
Yes! Use MS (Memory Store), MR (Memory Recall), M+ (Add to Memory), and MC (Memory Clear).
Works on smartphone browsers?
Yes, fully responsive across mobile phones, tablets, and desktop computers.
Can I calculate factorials (n!)?
Yes, click the `x!` button to compute integer factorials.
Is there any software download required?
No, works directly inside modern web browsers.
Does it cost money to use?
No, 100% free with no limits.
Is 1ClickTools Scientific Calculator free?
Yes, 100% free for all students, engineers, and scientists.