Category
Math calculators.
Percentage, age and date calculators with instant results.
Percentage Calculator Calculate percentages, percentage of a value, and percentage change between two numbers. Age Calculator Calculate exact age in years, months, weeks, days, hours and seconds from any birth date. Date Difference Calculate the exact number of days, weeks, months and years between any two dates. Hours Calculator Hours between two times less a break, overnight shifts included, and a weekly timesheet in decimal hours. Average Calculator Mean, median, mode, range and standard deviation of a list, and weighted averages of marks or prices. Fraction Calculator Add, subtract, multiply and divide fractions and mixed numbers, with the working, and decimals to fractions.