* Conversion: We need to convert either liters to pints or pints to liters. Let's convert pints to liters:
* 1 pint is approximately equal to 0.473 liters.
* Comparison:
* 1 and a half liters is equal to 1.5 liters.
* 1.5 liters is greater than 0.473 liters (1 pint).
Therefore, 1 and a half liters is greater than a pint.
