Math calculator
Scientific Calculator
Use arithmetic, square roots, powers, trigonometry, logarithms, and percent tools.
Quick answer
What does a scientific calculator do?
It handles more than basic math: powers, square roots, sin, cos, tan, logarithms (log and ln), π, e, and parentheses with proper order of operations (PEMDAS). For example √(16) + 2^3 = 12.
⚡ Answer updates as you type · Enter = calculate · Esc = reset
3.0000
81.0000
729.0000
0.0900
0.1564
0.9877
0.1584
0.9542
The Scientific Calculator provides quick operations for arithmetic, square roots, powers, percent, trigonometry, and logarithms.
About this Scientific Calculator
A free in-browser scientific calculator with trigonometry, logarithms, exponents, square roots, and parentheses. Built for homework, engineering checks, and quick math without installing an app.
What you'll need
- • Number keys, operators, and scientific functions (sin, cos, tan, ln, log, √, x^y)
How it works
- 1. Switch between degree and radian mode for trigonometry.
- 2. Use parentheses to control order of operations.
- 3. Press = to evaluate the expression.
Worked example
sin(30°) = 0.5; log(1000) = 3; 2^10 = 1024.
Related searches
Scientific Calculator FAQ
What is the Scientific Calculator?
The Scientific Calculator is a free online tool that helps you use arithmetic, square roots, powers, trigonometry, logarithms, and percent tools.
How do I use the Scientific Calculator?
Open the Scientific Calculator, enter the requested values, and review the instant estimate on the page.
Is the Scientific Calculator free?
Yes. The Scientific Calculator is free to use on Fast Online Calculator and does not require an account.
Does this calculator support both degrees and radians?
Yes—you can switch between DEG and RAD modes for sin, cos, tan, and inverse trig functions.
Can I use this for algebra?
Yes, parentheses and exponents let you evaluate algebraic expressions step by step.
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