Does this scientific calculator store my calculations?

No. All calculations run entirely in your browser. Nothing is sent to any server.

What functions does the scientific calculator include?

It includes sin, cos, tan and their inverses, log, ln, square root, powers, pi, Euler's number, factorial, and parentheses.

Can I use the calculator on mobile?

Yes. The calculator is fully responsive and works on smartphones and tablets.

Scientific Calculator

About the Scientific Calculator

What it includes

A full-featured scientific calculator supporting arithmetic, powers, roots, trigonometric functions (sin, cos, tan and their inverses), logarithms (log base 10 and natural log), factorial, and the constants π and e. Results are displayed with up to 10 significant figures.

How to use it

Click the on-screen buttons or type directly using your keyboard to build an expression. Press = or Enter to evaluate. The ANS button recalls the last result so you can chain calculations.

Functions reference

sin, cos, tan — trigonometric functions operating in degrees
sin⁻¹, cos⁻¹, tan⁻¹ — inverse trig; return the angle in degrees
log — base-10 logarithm
ln — natural logarithm (base e)
xʸ — raise x to any power y
x² — square a number
√x — square root
n! — factorial
π — 3.14159265358979…
e — 2.71828182845904…

Common uses

Maths homework, engineering and physics calculations, financial modelling with exponential growth, statistics (using log and powers), and unit conversions involving non-linear scales.

Scientific notation and significant figures

Scientific notation expresses very large or very small numbers compactly using powers of 10. The speed of light is 3 x 10^8 m/s. An electron's mass is 9.11 x 10^-31 kg. Significant figures indicate the precision of a measurement: 12.5 cm has 3 significant figures; 0.0450 has 3 significant figures (leading zeros do not count; trailing zeros after a decimal do).

Scientific notation — a x 10^b where 1 ≤ a < 10: 45,000 = 4.5 x 10^4
Engineering notation — like scientific notation but uses powers divisible by 3 (10^3, 10^6, 10^9) matching SI prefixes
Significant figures rules — all non-zero digits count; zeros between non-zeros count; trailing zeros after decimal count
Rounding rules — round to the number of significant figures in the least precise measurement used in the calculation

Frequently Asked Questions

What scientific functions are available?

The calculator includes trigonometric functions (sin, cos, tan) and their inverses, natural log (ln), log base 10, square root, factorial, powers, pi, and Euler's number (e).

Are trig functions calculated in degrees or radians?

Trig functions use radians, matching standard mathematical convention. To convert degrees to radians, multiply by π/180.

Can I chain calculations?

Yes. The display shows your current expression and updates live as you type. Use parentheses to control operation order.

How do I enter exponents and powers?

Use the ^ key to raise a number to a power — for example, 2^8 = 256. The calculator also has dedicated buttons for x² and square root. For Euler's number e, use the e button; for pi, use the pi button.

What is the difference between log and ln?

log (base-10) is the power to which 10 must be raised to give the input, used in engineering and decibels. ln is the natural logarithm (base e, approximately 2.718), used in calculus and natural growth models.