All Calculators

Perform calculations with complex numbers in the form a + bi.

Find all roots (real and complex) of cubic equations.

Solve linear inequalities of the form ax + b c, etc.

Calculate logarithms with different bases. Choose natural log (ln), common log (log base 10), or enter a custom base.

Perform matrix operations including addition, multiplication, determinant, and inverse.

Find the roots of polynomials up to degree 4.

Solve any quadratic equation ax2 + bx + c = 0 using the quadratic formula. Get real and complex roots with step-by-step solutions and discri

Calculate nth term and sum of arithmetic or geometric sequences.

Solve systems of 2 or 3 linear equations with multiple unknowns.

Perform vector operations: dot product, cross product, magnitude, and more.

Calculate the numerical derivative of a function at a specific point.

Calculate exponential growth, decay, half-life, and Newton's cooling.

Calculate definite integrals using numerical integration methods.

Evaluate limits of functions numerically as x approaches a specific value.

Calculate hyperbolic sine, cosine, tangent, and their inverses.

Calculate inverse trig functions: arcsin, arccos, arctan, and more.

Solve any triangle using the Law of Sines or Law of Cosines.

Find missing sides and angles of a right triangle. Enter two known values.

Calculate sine, cosine, tangent and their inverses. Choose between degrees and radians.

Calculate the area of common 2D shapes.

Calculate all properties of a circle from any one measurement.

Find the volume, surface area, face diagonal, and space diagonal of a cube. Enter any one value you know and get all the others instantly.

Calculate the distance between two points in 2D or 3D space.

Calculate the perimeter (total boundary length) of common 2D shapes.

Calculate area, perimeter, and properties of regular polygons.

Find the missing side of a right triangle. Enter any two sides to find the third.

Find the slope and equation of a line from two points.

Find the side length, area, perimeter, and diagonal of a square. Enter any one value you know and get the other three instantly.

Measure rooms in feet, meters, or inches. Add as many rooms as you need, see a running total, and get conversions plus material estimates.

Calculate the surface area of common 3D shapes.

Calculate the volume of common 3D shapes.

Calculate binomial probabilities for experiments with fixed trials and success probability.

Test goodness of fit or independence using the chi-square distribution.

Calculate confidence intervals for population parameters.

Calculate the Pearson correlation coefficient (r) to measure linear relationship between two variables.

Calculate the arithmetic mean (average) of your data set.

Calculate the measures of central tendency: mean, median, mode, and range.

Find the middle value (median) of your data set.

Find the most frequently occurring value(s) in your data set.

Calculate probabilities and areas under the normal (Gaussian) curve.

Calculate permutations (nPr) and combinations (nCr) for counting problems.

Calculate Poisson probabilities for events occurring in a fixed interval.

Calculate basic probability and combined events.

Calculate the best-fit line for your data points.

Calculate standard deviation and variance for population or sample data.

Perform hypothesis testing using the Student's t-distribution.

Calculate z-scores for the standard normal distribution.

Calculate the absolute value (magnitude) of any real number. Also called **modulus**, absolute value represents the distance from zero on th

Calculate the cube root of any real number instantly. Enter positive, negative, or decimal values.

Convert terminating and repeating decimals to fractions, or fractions to decimals. Results are automatically simplified to lowest terms.

Calculate any base raised to any power. Supports positive, negative, zero, fractional, and decimal exponents.

Calculate the factorial (n!) of any non-negative integer with step-by-step breakdown. Factorials grow extremely fast — maximum input is 170.

Add, subtract, multiply, and divide fractions with automatic simplification. Supports proper fractions, improper fractions, and mixed number

Find the Greatest Common Divisor (GCD) of two or more numbers. Also called GCF (Greatest Common Factor) or HCF (Highest Common Factor).

Find the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of two numbers simultaneously.

Find the Least Common Multiple (LCM) of two or more numbers. Also called Lowest Common Multiple or Least Common Denominator (LCD) when appli

Calculate the remainder when dividing a by n (a mod n).

Calculate any root of a number. Enter the radicand (x) and the root index (n) to find the nth root instantly.

Convert numbers between different bases: binary, octal, decimal, hexadecimal.

Four percentage calculations in one tool. Select a type below and enter your values for instant results.

Find all prime factors of any positive integer with step-by-step breakdown. Also called prime decomposition or integer factorization.

Simplify, compare, and solve ratio problems. Find equivalent ratios, scale values, and calculate proportional relationships.

Convert between Roman numerals and Arabic (decimal) numbers.

Round any number using five methods: nearest place value, decimal places, significant figures, ceiling (up), or floor (down).

Convert numbers to and from scientific notation (standard form).

Enter any number — including scientific notation like 1.23e4 — to count its significant figures and round it to a target number of sig figs.

Calculate the square root of any positive number instantly. Get both principal and negative roots with step-by-step solutions and estimation

Calculate compound annual growth rate and total return on investment.

Calculate how your money grows with compound interest over time.

Find the sale price and your savings from any percent-off deal — or reverse the math to recover the original price. Select a mode below.

See exactly where every payment goes. Enter the loan amount, annual interest rate and term to get your monthly payment plus a full amortizat

Calculate your Equated Monthly Installment (EMI) for any loan.

Estimate your monthly principal-and-interest payment. Enter the home price, down payment, annual interest rate and loan term for instant res

Calculate percentage increase, decrease, markup, or margin.

What is a future sum of money worth today? Enter the future value, the annual discount rate, the number of years, and the compounding freque

Convert between annual salary and hourly wage in both directions. Set your hours per week and weeks per year, then see every pay equivalent.

Add tax to a price or back the tax out of a total. Enter the combined rate for the exact location of the sale. Select a mode below.

Calculate simple interest using the formula I = P × R × T.

Calculate the future value of your systematic investment plan with regular monthly investments.

Convert between digital storage units: bytes, KB, MB, GB, TB, and more.

Convert between different units of length and distance.

Convert between different units of pressure.

Convert between different units of speed and velocity.

Convert between different temperature scales instantly.

Convert between different units of time.

Convert between different units of measurement.

Convert between different units of volume and capacity.

Convert between different units of weight and mass.

Enter your date of birth to find your exact age in years, months and days, your total days lived, the weekday you were born, and a countdown

Calculate your body mass index from height and weight. Switch between metric and imperial units for instant results.

Find the number of days between two dates, or add and subtract days from any date. Results include weeks, workdays, and a years-months-days

Add your courses, pick each letter grade, and enter credit hours. Your credit-weighted GPA on the standard 4.0 scale calculates instantly.

Final exam planner: enter your current course grade, the final exam weight, and your target grade to find the exact score you need on the fi

Generate random numbers in any range with cryptographically secure randomness. Choose how many numbers, allow or block duplicates, and sort

Enter your bill, pick a tip percentage, and split the total. Get the tip amount, total with tip, and each person's share instantly.