Free online math calculators for percentages, unit conversions, and more. Fast, accurate results for all your mathematical needs.
Calculate percentage increase or decrease between two values. Find the exact percentage change from old to new value instantly.
Calculate discount percentage and final sale price instantly. Find out how much you save with percentage discounts. Perfect for shopping and sales.
Calculate your GPA instantly. Support for weighted and unweighted GPA. Multiple courses, cumulative GPA, and grade tracking.
Calculate your final grade with our free grade calculator. Determine what you need on your final exam to achieve your desired course grade.
Free Password generator online. Generate password values instantly with our free generator.
Test password strength instantly. Check password security, entropy, and get improvement tips. Essential for online security.
Free Percentage calculator online. Calculate percentage results instantly with our free calculator.
Calculate percentage decrease instantly. Find the percent decrease between two numbers. Ideal for price drops, value loss, and reduction calculations.
Calculate percentage difference between two numbers instantly. Find the relative difference as a percentage. Useful for comparisons and analysis.
Calculate percentage increase instantly. Find the percent increase between two numbers. Perfect for salary raises, price increases, and growth calculations.
Free QR Code generator online. Generate qr code values instantly with our free generator.
Free Random Number generator online. Generate random number values instantly with our free generator.
Free Random Word generator online. Generate random word values instantly with our free generator.
Free Unit converter online. Convert unit values instantly with our free converter.
Calculate the least common multiple of two or more numbers.
Convert between improper fractions and mixed numbers.
Perform a t-test to compare means of two samples. Evaluate statistical significance and p-values for hypothesis testing.
Calculate the arithmetic mean (average) of any dataset. Enter comma-separated numbers and get instant results with sum, count, and mean.
Calculate the median (middle value) of any dataset. Enter comma-separated numbers and get instant results with sorted data and median.
Calculate the mode (most frequent value) of any dataset. Enter comma-separated numbers and find which values occur most often with frequency counts.
Calculate the range (max - min) of any dataset. Find minimum, maximum, range, and midrange with sorted data display.
Calculate the sum of multiple numbers instantly. Add comma-separated values, see running totals, partial sums, and average.
Calculate the product of multiple numbers instantly. Multiply comma-separated values with step-by-step breakdown.
Convert any decimal number to a fraction in simplest form. Get improper fractions, mixed numbers, and percentage equivalents.
Free Fraction to Decimal converter online. Convert fraction to decimal values instantly with our free converter.
Calculate ratios and proportions for various applications.
Convert between binary, decimal, hex, and octal. Perform binary arithmetic operations including addition, subtraction, multiplication, and division.
Comprehensive scientific calculator with trigonometry, logarithms, exponents, and statistics. Free online tool for students and professionals.
Calculate the square root of any number instantly. Supports positive numbers, decimals, and perfect squares with precise results.
Calculate the standard deviation for a dataset. Measure data spread and variability for statistical analysis with step-by-step results.
Calculate confidence intervals for a sample mean. Set your confidence level and get precise range estimates for population parameters.
Calculate exponentiation results for any base and power. Compute powers, roots, and exponential expressions instantly with our free tool.
Find the prime factors of any number instantly. Decompose integers into their prime factorization with step-by-step results and visual breakdown.
Perform basic arithmetic operations: addition, subtraction, multiplication, division.
Calculate the average (mean) of a set of numbers. Find the mean, median, and mode with a step-by-step breakdown of your data.
Convert between improper fractions, mixed numbers, and decimals.
Calculate logarithms in various bases including natural and common logs.
Calculate the greatest common factor of two or more numbers.
Calculate variance for a dataset. Measure how far values deviate from the mean with support for both sample and population variance.
Calculate the z-score for data points in a distribution.
Calculate basic probability, compound probability, conditional probability, and convert between probability and odds. Free online calculator.
Calculate circle properties including area, circumference, diameter, and radius. Enter any known value to find the rest.
Calculate the area of a circle using radius, diameter, or circumference. Instant results with detailed formulas.
Use the Pythagorean theorem to calculate the missing side of a right triangle. Find hypotenuse or leg lengths.
Calculate sides, angles, area, and perimeter of a right triangle. Enter known values to find unknown ones.
Calculate the properties of regular polygons including area, perimeter, apothem, and circumradius. Enter number of sides and side length.
Calculate rectangle properties including area, perimeter, diagonal length, and more. Enter known values.
Calculate the circumference of a circle using radius or diameter. Find the distance around any circle.
Calculate square properties including area, perimeter, and diagonal. Enter any value to find the rest.
Calculate triangle properties including area, perimeter, and angles. Enter known values to find the rest.
Calculate volume of various 3D shapes including cubes, spheres, cylinders, and more.
Solve algebra equations instantly. Linear, quadratic, and polynomial equation solver with step-by-step solutions.
Calculate IP subnets, network addresses, broadcast addresses, and host ranges. Essential for network administrators.
Calculate derivatives of mathematical functions. First and second derivative calculator with step-by-step solutions.
Graph mathematical functions and equations. Plot functions, find intersections, and analyze graphs.
Calculate indefinite and definite integrals. Step-by-step integration with mathematical explanation.