Home/Scientific Calculator
Education

Scientific Calculator

Scientific calculator with trig, logs, constants, variables, statistics, number bases, combinatorics and more - free, instant, nothing uploaded.

Scientific Calculator — For Engineers, Students and Programmers

A complete scientific calculator with trigonometry, logarithms, constants, variables, statistics, number base conversion, combinatorics and more. Type expressions naturally like sin(30) + 5^2, switch between DEG and RAD, store variables, and see results update live. Everything runs on your device.

What you can do: scientific calculator online · casio scientific calculator fx-991es plus alternative · scientific calculator for engineering students · best scientific calculator · scientific calculator with fractions · online calculator with variables · log calculator with custom base · statistics calculator mean median standard deviation · number base converter · prime factorization calculator · lcm gcd calculator online

100% private - nothing saved or sent Live results - updates as you type 10 constants - 25+ functions - 6 number bases
1

Type or click

Type expressions naturally or use the keypad buttons. Both work simultaneously.

2

See results live

The answer updates as you type - with number bases, fractions and more shown alongside.

3

Store and reuse

Save results to variables, use memory functions, and revisit past calculations from history.

Angle:

Expression

Try:

{ Click any example to load it - the result appears instantly. }

Variables (usable in expressions):

Memory: 0Last answer (ANS): 0

Scientific Keypad - click to insert

Constants - click to insert

What do these buttons mean?

sin - sine of an angle (try sin(30) in DEG mode)

cos - cosine of an angle

tan - tangent of an angle

sqrt - square root (sqrt(16) = 4)

log - logarithm (log(100) = 2, or log(8,2) = 3 for base 2)

ln - natural logarithm (base e)

n! - factorial (5! = 5×4×3×2×1 = 120)

nPr - permutation (arrangements)

nCr - combination (selections)

gcd - greatest common divisor

lcm - least common multiple

mod - remainder after division (17 mod 5 = 2)

exp - e to the power (exp(1) = 2.718...)

abs - absolute value (abs(-5) = 5)

How to Use the Scientific Calculator

Type expressions naturally like sin(30) + 5^2 or log(100,2) - the parser handles nested parentheses, operator precedence, and scientific notation. Results update live as you type.

Angle Modes

DEG for degrees (sin(30) = 0.5), RAD for radians (sin(π/6) = 0.5), GRAD for gradians. Trig functions use the selected mode.

Constants

π, e, φ (golden ratio), c (speed of light), g (gravity), h (Planck), G (gravitational), Na (Avogadro), k (Boltzmann), R (gas constant) - click to insert into any expression.

Variables

Store a value as x (e.g. 42), then use x in expressions like x*2+1. The calculator reads the stored value automatically.

Number Bases

Every integer result shows in DEC, HEX, OCT and BIN simultaneously - useful for programming and computer science work.

Memory

M+ adds the current result to memory. MR recalls it. MC clears. Use memory to store intermediate results across multiple calculations.

We use cookies

We use cookies to serve relevant ads and improve your experience. Read our Privacy Policy.