Everyday Math, Solved Instantly
Some calculations come up constantly — splitting a bill, checking a discount, working out exam marks, filling an age field on a form, or adding measurements in fractions. These tools answer instantly and show the working, so you learn the method while getting the result.
The percentage calculator handles all three common forms (X% of Y, X as a percent of Y, and percent change), the age calculator gives calendar-exact years, months, and days for any reference date, and the fraction calculator adds, subtracts, multiplies, and divides with automatically simplified results.