7 browser-based tools
Calculators
Fast math for percentages, ratios, averages, fractions, and everyday questions.
Explore calculators tools
Choose a tool for an immediate answer. Inputs stay on this device unless the page clearly says otherwise.
Percentage Calculator
Find a percentage of any number instantly.
CalculatorsWhat Percent Is X of Y?
Calculate what percentage one number represents of another.
CalculatorsPercentage Difference Calculator
Compare two values using their average as the reference.
CalculatorsRatio Calculator
Simplify a two-number ratio to its lowest whole-number terms.
CalculatorsAverage Calculator
Find the mean, median, minimum, maximum, and sum of a number list.
CalculatorsFraction to Decimal Converter
Convert a numerator and denominator into a decimal and percentage.
CalculatorsDecimal to Percentage Converter
Turn a decimal into a percentage and simplified display value.
Designed for quick, reliable answers
These tools put the useful part first. Each page explains the calculation or transformation it performs, includes practical examples, and links to closely related utilities.
No account is required, and these utilities work entirely in your browser.