Math & Everyday
calculators.
Percentages, dates, fuel, travel and everyday maths. Every tool gives an instant answer and shows the formula or assumptions behind it.
Percentage Calculator
Calculate a percentage of a number, or what percent one number is of another.
Calculate →Math & EverydayPercentage Change Calculator
Calculate percentage increase or decrease between two values.
Calculate →Math & EverydayPercentage Difference Calculator
Calculate symmetric percentage difference between two values.
Calculate →Math & EverydayAverage Calculator
Calculate the arithmetic mean of a list of numbers.
Calculate →Math & EverydayRatio Simplifier
Simplify a two-number ratio to lowest whole-number terms.
Calculate →Math & EverydayAge Calculator
Calculate age in years, months and days from a birth date.
Calculate →Math & EverydayDate Difference Calculator
Find calendar days and approximate weeks between two dates.
Calculate →Math & EverydayFuel Cost Calculator
Estimate trip fuel use and cost from distance and fuel economy.
Calculate →Math & EverydayFuel Economy Calculator
Convert between L/100km and miles per gallon (US and Imperial).
Calculate →Math & EverydayTravel Time Calculator
Estimate travel duration from distance and average speed.
Calculate →Math & EverydayTip & Bill Split Calculator
Calculate tip, total bill and amount per person.
Calculate →Math & EverydayPace Calculator
Calculate pace per kilometre from distance and elapsed time.
Calculate →Math & EverydayData Transfer Time Calculator
Estimate transfer duration from file size and connection speed.
Calculate →