The answer depends on 450 what. 450 hectolitres, 450 litres, 450 gallons or whatever will all give different answers.
There are 100 centilitres in one litre. Therefore, 450 centilitres is equal to 450/100 = 4.5 litres.
About 23.6 hectoliters.
There are 0.0075 hectoliters in 0.75 liters.
1 kiloliter = 10 hectoliters
1 kiloliter = 10 hectoliters
2.513 hectoliters = 2,513 deciliters
250 mL = 0.0025 hectoliters.
1,237 liters is 12.37 hectoliters.
That would be 27.5 hectoliters.
0.12 hectoliters is 12 liters.
280 hectoliters = 280,000 deciliters
63 hectoliters = 63,000 deciliters