is 1.5 ml greater than or less than 1500 l?

1ml = 1/1000 L

1.5 ml = 1.5 × (1/1000 L) = 0.0015 l < 1500 l
Hence, 1.5 ml < 1500 l

******* kill yourself you ******* ******

The first is a millionth (much smaller) of the second.
Peace.

much less!

but 1500 ml = 1.5 liter

1.5ml is a small drop, 1500 l is 1500 cartons of milk. Take a guess.

Clearly less. Milliliters are 1/1000 of liters.

Now, if you asked if 1500 mL are greater or less than 1.5 L, they'd be equal.