There are 10 deciliters in 1 liter. In order to understand and remember the value of a deciliter, you can look at the prefix 'deci-', which means 10. One deciliter is the same as 1/10 of a liter. To convert from liters to deciliters, simply divide the number of liters by 0.1. 1 / 0.1 = 10 . Therefore, 10 deciliters are equivalent to 1 liter.