Math Calculators & Tools
Explore practical math tools from URTools. Each tool includes an explanation of the method and common limitations.
Average Calculator
Calculate the average of numbers.
Fraction Calculator
Add, subtract, multiply and divide fractions.
GCD Calculator
Calculate the greatest common divisor.
LCM Calculator
Calculate the least common multiple.
Percentage Calculator
Calculate percentages, percentage of a number and reverse percentage.
Percentage Change Calculator
Calculate percentage increase or decrease between two values.
Percentage Decrease Calculator
Calculate percentage decrease and new value.
Percentage Increase Calculator
Calculate percentage increase and new value.
Power Calculator
Calculate powers and exponents.
Ratio Calculator
Simplify and scale ratios.
Square Root Calculator
Calculate square roots and perfect-square checks.
About Math tools
These tools are designed for common math tasks. Open an individual tool to see how the calculation works, a worked example, assumptions, FAQs and related tools.