Free online math calculators for percentages, unit conversions, and more. Fast, accurate results for all your mathematical needs.
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.
Generate secure random passwords instantly. Customizable length, characters, and strength. Copy to clipboard. Free password generator.
Test password strength instantly. Check password security, entropy, and get improvement tips. Essential for online security.
Free online percentage calculator. Calculate percentage increase, decrease, difference and more. Fast, accurate results for all your percentage calculations.
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.
Generate QR codes instantly. Create QR codes for URLs, text, and contact info. Customizable colors and sizes. Free download.
Free random number generator. Generate random numbers within a custom range. Choose quantity, unique numbers, and sorting options. No download required.
Generate random words instantly. Choose word count, starting letters, and word length. Perfect for writers, students, and creative projects.
Convert units instantly. Length, weight, volume, temperature, and more. Metric to imperial converter. Fast, accurate conversions.
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.
Calculate ratios and proportions for various applications.
Comprehensive scientific calculator with trigonometry, logarithms, exponents, statistics, and more. Free online scientific calculator for students, engineers, and professionals.
Calculate the square root of a number.
Calculate the standard deviation for a dataset.
Calculate confidence intervals for a sample mean.
Calculate exponentiation results.
Find the prime factors of a number.
Perform basic arithmetic operations: addition, subtraction, multiplication, division.
Calculate the average (mean) of a set of numbers.
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.
Calculate the z-score for data points in a distribution.