Scientific Calculator

Free scientific calculator. Trigonometry (sin/cos/tan), logarithms, square root, powers, π, e, DEG/RAD — 100% client-side with keyboard support. 100% serverless.

🔒 100% Private

⚡ Completely Free

🌐 Runs in Browser

📦 Export Ready

Click buttons or use keyboard.
Use DEG/RAD toggle for trig modes.
Click the display to copy the result.

A full-featured scientific calculator with trigonometric functions, logarithms, square root, powers, and constants. Supports keyboard input and DEG/RAD modes.

Features

Trig: sin, cos, tan, asin, acos, atan
Log: log (base 10), ln (natural)
√, x², ^, π, e
DEG/RAD toggle
Keyboard support
Calculation history
Click-to-copy result

Privacy

100% client-side.

Frequently Asked Questions

Does it support keyboard input?

Yes. Use 0-9, +, -, *, /, Enter, Backspace, Escape, ^, (, ).

Can I switch between degrees and radians?

Yes. Click the DEG/RAD button to toggle.

Is my data safe?

Yes. 100% client-side.

What functions are available?

sin, cos, tan, asin, acos, atan, log (base 10), ln (natural log), √ (square root), x² (square), ^ (power), π, e.

Scientific Calculator — Trig, Log & More