How many liters are in 1 deciliter?

One deciliter is defined as one-tenth of a liter, which is where the designation "deci-" comes from. Since "deci-" means one-tenth (1/10), this means that 1 deciliter equals 0.1 liters. Therefore, the accurate conversion indicates that 1 deciliter is indeed equal to 0.1 liter. Understanding metric prefixes is crucial for conversions, as each prefix represents a specific factor of ten. In this case, the correct conversion demonstrates an understanding of the metric system and the relationship between different units of volume.