Advanced Calculator Online

Free scientific calculator — trig, logs, powers, roots, memory, and DEG/RAD mode. Private and keyboard-friendly.

Prefer simple math? Open Basic Calculator

Use this free advanced calculator online for school, engineering, and everyday scientific math. Prefer simple arithmetic? Open the basic calculator or the calculator homepage.
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Scientific calculations never leave your browser

How to Use the Free Scientific Calculator

1

Enter a value

Tap the keypad or type digits. Use π or e for constants. Toggle DEG/RAD for angle units.

2

Apply a function or operator

Press sin, cos, log, √, xʸ, and more — or chain +, −, ×, ÷ for multi-step math.

3

Read and reuse the result

Press = for binary ops. Copy the answer, store it with M+, or keep calculating.

Frequently Asked Questions

Is this advanced calculator free?

Yes. The Site95 advanced (scientific) calculator is 100% free with no signup, no watermarks, and no usage limits.

What scientific functions are included?

Sine, cosine, tangent and their inverses; log (base 10) and ln; square root, cube root, x², x³, xʸ, 10ˣ, eˣ; reciprocal, absolute value, factorial; constants π and e; plus basic arithmetic and percent.

What is DEG vs RAD mode?

DEG uses degrees for trig functions (default). RAD uses radians. Toggle with the DEG/RAD button or press D on your keyboard. Inverse trig results are returned in the selected unit.

Do my calculations leave my device?

No. All math runs in your browser with JavaScript. Site95 never receives your numbers or results.

Does memory work (MC, MR, M+, M−)?

Yes. M+ adds the display to memory, M− subtracts, MR recalls, and MC clears. An “M” badge appears when memory is non-zero.

Is there a basic calculator too?

Yes. For simple add, subtract, multiply, and divide, use the free basic calculator on Site95.

Free Advanced / Scientific Calculator in Your Browser

When four-function math is not enough, a scientific calculator online saves time for trigonometry, logarithms, exponents, and roots. Site95’s advanced calculator runs entirely in your browser — no install, no account, and no upload of your numbers.

Functions at a glance

  • Trigonometry: sin, cos, tan and inverse sin⁻¹, cos⁻¹, tan⁻¹ with DEG or RAD mode
  • Logs & exponentials: log (base 10), ln, eˣ, 10ˣ
  • Powers & roots: x², x³, xʸ, √, ∛, reciprocal 1/x
  • Other: absolute value, factorial n!, percent, ±, constants π and e
  • Memory: MC, MR, M+, M− with an on-screen memory indicator

Private by design

Every operation is computed with client-side JavaScript. That makes this tool suitable for quick homework checks, lab calculations, and desk work when you do not want another app account.

Keyboard shortcuts

Digits 0–9, operators + - * / ^, Enter or = for equals, Escape or C to clear, Backspace to delete, % for percent, D to toggle DEG/RAD, and F for maximize (large view).

Basic vs advanced calculator

Use the basic calculator for everyday totals and homework arithmetic. Switch to this advanced page when you need trig, logs, powers, or memory registers. Both tools are free on Site95.

Looking for more free tools? Try our PDF tools, image tools, and word counter.