Pythagorean Theorem Calculator
Use our Pythagorean Theorem Calculator to find missing sides, area, perimeter, angles, or altitude of a right triangle—just enter any two known sides.
Proportion Calculator
The Proportion Calculator helps you quickly find the unknown value in any ratio or proportion using cross-multiplication, with clear step-by-step solutions for easy understanding.
How to Convert a Decimal to a Fraction
Learn how to convert fractions to decimals easily with step-by-step instructions, examples, and explanations. Convert simple and mixed fractions accurately using our free online Fraction to Decimal Converter.
How to Convert a Fraction to a Decimal
Learn how to convert fractions to decimals easily with step-by-step instructions, examples, and explanations. Convert simple and mixed fractions accurately using our free online Fraction to Decimal Converter.
Percentage Calculator
Use our Percentage Calculator to solve 15 different types of percentage problems quickly from “What is P% of X?” to “X minus P% is what?” with solutions.
Average Percentage Calculator
Use our Average Percentage Calculator to quickly calculate the average of multiple percentages, whether from equal or unequal values, with detailed solutions.
Percent Error Calculator
Percent Error Calculator is a helpful tool to find the difference between measured and actual values, showing you the percent error with detailed solutions.
Percentage Decrease Calculator
Percentage Decrease Calculator helps you quickly find how much a value has decreased in percentage terms, from one value to another, with detailed solutions.
Percentage Increase Calculator
The Percentage Increase Calculator helps you quickly find how much a value has increased in percentage terms—from one value to another—with detailed solutions.
Percentage Difference Calculator
The Percentage Difference Calculator helps you quickly find the percentage difference between two values—with clear and detailed solutions.