That depends on the type material you are referring to. Also, these are two different types of measurements. One is volume the other is weight or mass. Please edit your question to include more context or details.
1200
1200 US gallons = 4542.5 liters1200 Imperial gallons = 5455.3 litres
1200 millilitres = 1.2L 1L = 0.2642 gallons 1.2L x 0.2642 gallons/1L = 0.3170 = 0.32 gallons QED
2.4 million pounds.
There are 2000 pounds in one ton. Therefore, 1200 pounds is equal to 1200/2000 = 0.6 tons.
About 5869.24 gallons
There are approximately 0.317 gallons in 1200 milliliters.
there are 2.2 pounds in one kg 1200kgm = 2.2 x 1200 = 2640 pounds
1200 ÷ 25 = 48 gallons
4546 liters = 1,201 gallons.
42 gallons of water is 350.7 pounds
2.64 pounds