Scientific Calculator
Leave the simple math behind. For physics, engineering, and calculus, you need a tool that speaks the language of the universe. Sines, Cosines, and Logs—solved instantly.
History
Keyboard shortcuts: Numbers, operators, Enter (=), Escape (C), Backspace
nCr/nPr: Enter "n,r" format (e.g., 10,3) then click nCr or nPr
Supports parentheses, power (x^y), trigonometry, hyperbolic functions, combinations, permutations, and quadratic solver.
Beyond Addition and Subtraction
Most daily calculations are simple: splitting a bill or measuring a rug. But the moment you step into the worlds of Physics, Chemistry, or Engineering, arithmetic isn't enough. You need to model curves with Trigonometry, calculate decay with Logarithms, and handle massive numbers with Exponents. Our Scientific Calculator is a fully-featured digital lab partner, ready to handle the heavy lifting for your homework or research.
The Toolkit of Science
What makes a calculator "Scientific"? It supplies the functions needed to solve equations involving real-world phenomena.
Trigonometry (Sin, Cos, Tan)
Essential for studying waves, triangles, and circular motion. Used heavily in architecture, sound engineering, and game development.
Logarithms (Log, Ln)
The inverse of exponents. Crucial for measuring earthquake intensity (Richter scale), sound loudness (Decibels), and chemical acidity (pH).
Roots & Powers (√, x²)
From calculating the area of a circle to determining kinetic energy, squaring numbers and finding roots is fundamental to physics.
The Constants (π, e)
Pi (3.141...): The ratio of a circle's circumference to its diameter.
Euler's Number (2.718...): The base of natural growth and compound interest.
Order of Operations (PEMDAS)
Unlike a basic 4-function calculator, a scientific calculator respects the hierarchy of math.
A basic calculator might do "2+3=5" then "5*4=20". This is wrong. Our calculator correctly identifies that multiplication must happen before addition. Use Parentheses ( ) to force specific operations to happen first if needed: (2+3) × 4 = 20.
Electrical Engineering
Calculating AC voltage involves complex sine waves. Engineers use Sin and Cos functions constantly to model electricity flow.
Finance & Growth
Compound interest is modeled using exponents and Euler's number (e). Use this to calculate long-term investment growth more precisely than basic interest formulas.
Architecture
Determining the slope of a roof or the height of a building requires the Tangent function and Pythagorean theorem.
Frequently Asked Questions
What is the difference between Rad and Deg?
Deg (Degrees) divides a circle into 360 slices. Rad (Radians) divides it based on the radius (2π radians = 360°). Calculators default to one or the other; ensure you know which mode you are in, or you will get wildly different answers for Trig functions.
How do I find an Inverse Sine (Asin)?
On many calculators, this is the "Shift" or "2nd" function of the Sin key. It does the opposite: you give it a ratio, and it tells you the angle that produced it.
Why does it say 'NaN' or 'Error'?
You likely tried an impossible operation, like dividing by zero or trying to find the square root of a negative number (which requires imaginary numbers, not supported by standard real-number calculators).
Rounding Errors
All digital calculators use floating-point arithmetic. Occasionally, you might see a result like 3.999999999 instead of 4 due to how computers store decimals.
Data Privacy
We do not store your calculations. This tool runs entirely in your browser.