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Scientific Calculator — Trig, Log, Powers

Online scientific calculator — trig, log, powers, roots, factorial, π/e, DEG/RAD, with a proper expression parser. Client-side.

Free No signup Client-side Privacy friendly Updated
scientific

How to use

  1. 1 Tap the keys (or type directly in the expression box) to build a calculation.
  2. 2 Use functions like sin, cos, ln, log, √ and the xʸ power key.
  3. 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.

Features

Full function set

sin, cos, tan (and inverses), ln, log₁₀, exp, sqrt, cbrt, powers, and factorial.

Degrees or radians

Trig defaults to degrees; toggle to radians as needed.

Free & private

Runs on your device — nothing is uploaded.

Example

Input

log(1000)

Output

3

Common use cases

  1. 1

    Everyday math

    Evaluate multi-step arithmetic and function expressions.

  2. 2

    Trigonometry

    Compute sin/cos/tan in degrees or radians for geometry and physics.

  3. 3

    Logs & exponents

    Work with natural and base-10 logs, powers, and roots.

Summary

Zerethon's scientific calculator evaluates expressions in your browser with trigonometric, logarithmic, exponential, and root functions, plus constants like π and e. Trig functions default to degrees (switchable to radians). Everything runs client-side — nothing is uploaded.

Category
Math
Pricing
Free
Privacy
Browser-based
Signup
Not required

References

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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