40 calculators in this category
Simple everyday arithmetic: add, subtract, multiply, divide with a retro LCD display.
Advanced scientific calculator with trigonometry, logarithms, powers, and constants.
Calculate percentages: what is X% of Y, percentage change, and more.
Add, subtract, multiply, divide fractions. Simplify and convert to decimals.
Calculate area of rectangles, circles, triangles, trapezoids, and ellipses.
Calculate volume of cubes, spheres, cylinders, cones, and pyramids.
Solve ax² + bx + c = 0. Find roots, discriminant, and vertex.
Calculate mean, median, mode, standard deviation, and variance from a data set.
Find the Greatest Common Divisor and Least Common Multiple of two or more numbers.
Convert between binary, octal, decimal, and hexadecimal number systems.
Calculate powers, roots, and exponential expressions.
Calculate permutations (nPr) and combinations (nCr) with factorial support.
Simplify ratios, find equivalent ratios, and solve proportions.
Calculate natural log (ln), common log (log₁₀), and log with custom base.
Find the missing side of a right triangle using a² + b² = c².
Calculate circle area, circumference, diameter, and radius from any known value.
Calculate area, angles, and sides of any triangle using various formulas.
Find prime factors of any number and check if a number is prime.
Round numbers to nearest integer, decimal places, or significant figures.
Convert to and from scientific notation (e.g., 3.5 × 10⁴).
Calculate population and sample standard deviation with step-by-step breakdown.
Find the mean, median, mode, and range of any data set instantly.
Calculate z-scores and find probabilities for normal distributions.
Calculate confidence intervals for means and proportions.
Calculate probability of events, combinations, and conditional probability.
Calculate numerical derivative of a function at a point.
Calculate definite integral using trapezoidal rule.
Calculate limit of an expression as x approaches a value.
Solve 2x2 system of linear equations using Cramer's rule.
Add, subtract, multiply, and divide complex numbers.
Calculate determinant of 2x2 or 3x3 matrices.
Find real roots of polynomials up to degree 3.
Calculate nth term and sum of arithmetic sequences.
Calculate nth term and sum of geometric sequences.
Calculate combinations with repetition allowed.
Calculate factorial of any number up to 170.
Calculate modulo operation and quotient.
Calculate absolute value of any number.
Calculate cube root of any number including negatives.
Calculate nth root of any number.
