What is the difference between Radian and Degree mode?

Degree mode assumes angles are specified in degrees (0 to 360). Radian mode assumes angle coordinates match radians (0 to 2π). Toggle it at the top left of the calculator grid before computing sin/cos/tan.

Can I type inputs using my keyboard?

Yes! Numbers, operators (+, -, *, /), Enter (equals), Backspace (delete), Escape (clear), and brackets are fully supported with matching animations on corresponding buttons.

How do memory keys (MC, MR, M+, M-) work?

MS stores the displayed number in memory. MR recalls the stored value. M+ adds the displayed number to the memory register. M- subtracts it. MC clears the memory value to zero.

Are my mathematical calculations private?

Absolutely. Calculations and history are processed entirely client-side in your browser. None of your math data or input calculations are uploaded or transmitted to any server.

Scientific & Standard Calculator

Calculate basic math operations or solve complex scientific equations. Supports Radian/Degree conversions, memory logs, keyboard inputs, and full history.

Hotkey Tip: You can use your physical computer keyboard! Use Enter to calculate, Backspace to delete, and Esc or C to clear. Parentheses, exponents (^), and constants are also mapped!

Calculation Logs

No calculations logged yet in this session.

How to Use

Toggle between Standard (Standard arithmetic) or Scientific (complex trigonometry/algebra) modes.

Use Degree/Radian switch at the top to compute trig formulas appropriately.

Input variables using the buttons grid or type directly using your physical keyboard.

View history panel on desktop to review or restore past mathematical calculations.

Features

Dual responsive modes: Standard basic arithmetic grids or expanded 36-key Scientific layout

Advanced functions: sin, cos, tan, inverse trig, base-10 log, natural log, roots, and factorials

Safe internal string tokenizer parsing without using insecure Javascript eval() processes

Memory slots: Store values (MS), add/subtract (M+/M-), recall (MR), or wipe register (MC)

Physical keyboard hotkey listeners with responsive key lights visual feedback

Calculation logs tracking history with quick click restoring values to the screen

Synthesized click feedback using Web Audio API and Radian vs Degree toggles

FAQ

Use this free online Scientific & Standard Calculator. Ideal for students, algebra homework, engineering statistics, trigonometry calculations, and daily basic math tasks. Supports keyboard inputs, memory functions, custom click sounds, and detailed calculation history logs.

About Scientific & Standard Calculator

Switch between Standard and Scientific modes in one sleek calculator. Calculate basic arithmetic, trigonometry (sin, cos, tan), log/ln, exponent power/roots, memory operations, and parentheses. Features physical keyboard hotkeys, custom click audio synthesis feedback, and a complete session history log. 100% private in-browser tool.

Processing Note

Scientific & Standard Calculator runs in your browser, so the input you enter is processed locally on this page and is not uploaded to a ToolMintX account.