Scientific Calculator Online
Full scientific calculator with trigonometry, logarithms, powers, roots, factorial. Calculation history. Works on mobile.
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About Scientific Calculator Online
Full-featured scientific calculator: basic arithmetic, trigonometric functions (sin, cos, tan, in degrees or radians), logarithms (log, ln), powers (x^y, √x, ∛x), factorial (n!), and memory functions (M+, M-, MR, MC). Calculation history panel.
A scientific calculator is essential for students in Classes 10–12, engineering entrance exam preparation (JEE, BITSAT), and professional work in science, engineering, and finance. This browser-based calculator works without installing any app, supports trigonometric functions in both degrees and radians, and keeps a calculation history for reference.
How to use
- Enter a value and pick your source and target units — the conversion updates instantly.
- Double-check the unit abbreviations shown, since similarly-named units sometimes use different base definitions.
- Use the swap or reverse option if available to quickly flip the conversion direction.
- Chain into a related converter below if your task needs a second conversion step.
- All conversions are computed in your browser using standard, precise conversion factors.
Tool details
⚡ Next step — complete your workflow
Frequently asked questions
How to calculate sin 30° online?
Set mode to Degrees, press 3, 0, then sin. Result: 0.5. In radians: sin(π/6) = 0.5.
What is log vs ln?
log = log base 10 (common logarithm). ln = log base e (natural logarithm, where e ≈ 2.71828). log(100) = 2. ln(e²) = 2.
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