Convert between length, weight, and temperature units instantly — with a full conversion table showing all units in the selected category at once. Switch between metric and imperial, or use the swap button to reverse the direction. Results are shown to 8 significant figures for precision without unnecessary clutter.
Calculate what percent of a number is, find a percentage change between two values, or determine what percent one number is of another. Three calculators in one. Free.
Simplify any ratio to its lowest terms, solve proportions, or find the missing value in A:B = C:X. Enter any three values to solve for the fourth. Free.
Calculate your exact age in years, months, and days from any date of birth. Also shows your next birthday and how many days until it. Free, instant results.