Scientific Calculator — Trig, Log, Powers
Online scientific calculator — trig, log, powers, roots, factorial, π/e, DEG/RAD, with a proper expression parser. Client-side.
How to use
- 1 Tap the keys (or type directly in the expression box) to build a calculation.
- 2 Use functions like sin, cos, ln, log, √ and the xʸ power key.
- 3 Toggle DEG / RAD for trigonometric functions, then press = .
Why use this tool
- Full scientific functions: trig, logarithms, powers, roots, factorial, π and e.
- Type or tap — the expression is fully editable.
- Runs entirely in your browser. No signup, no ads.
Frequently asked questions
Does it support order of operations?
Yes — it follows standard precedence (parentheses, powers, then × ÷, then + −) with a proper expression parser, not a left-to-right calculator.
How do I switch between degrees and radians?
Use the DEG / RAD toggle above the keypad. It affects sin, cos, tan and their inverses.
What functions are available?
sin, cos, tan (and asin, acos, atan if typed), ln, log, sqrt, cbrt, exp, abs, factorial (!), percent (%), π and e.
Is anything sent to a server?
No — all calculation happens locally in your browser.
What is Scientific Calculator?
A scientific calculator evaluates expressions with full order of operations and scientific functions — trigonometry (degrees or radians), logarithms, exponents, roots, factorials, and the constants π and e.
Scientific Calculator is a free math utility by Zerethon Tools. Online scientific calculator — trig, log, powers, roots, factorial, π/e, DEG/RAD, with a proper expression parser. Client-side. Runs entirely in the browser — no signup, no upload.
- Category
- Math
- Pricing
- Free
- Privacy
- Browser-based
- Signup
- Not required
Privacy
Your data never leaves your browser unless explicitly stated. Scientific Calculator runs entirely client-side — no server upload, no logging, no tracking of your input.
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