1. Build an expression
Use numbers, parentheses, powers (^), roots, and functions like sin(…) or sqrt(…). Multiply chains with × or *.
Scientific Online Calculator Free – Math, Trig, Logs, and Memory
How to Use This Scientific Calculator
2. Set DEG or RAD
For sin, cos, and tan, choose degrees or radians. Inverse trig returns the same mode.
3. Evaluate and use memory
Press = or Enter. Use MC/MR/M+/M−/MS for running totals. AC, Escape, or Alt+C clears the line.
Why Use This Browser Scientific Calculator
No install
Open the page and calculate—nothing to download.
Comfortable day & night
Toggle Toolker light or dark mode; the keypad adapts for less eye strain.
Keyboard shortcuts
Power users can stay on the keyboard for faster entry.
Privacy-friendly
Calculations run in your browser; nothing is sent to a server.
Frequently Asked Questions
Is this a scientific calculator?
Yes—it supports trig, logarithms, powers, factorial, π and e, parentheses, and memory keys.
Can I use it for homework or exams?
It is useful for practice and quick checks; follow your instructor’s rules on allowed tools.
Does it work offline?
After the page loads once, your browser can keep using the cached page for basic use without a new request.
How do I clear the display?
Press AC, Escape, or Alt+C to clear all.