Simplify the following text for a Grade 5 native English-speaking person.
Original: It is equal to 2240 l or 35 c of salt water with a density of 64 lb\/ft3 ( 1.025 g\/ml ) .
Simplified: One long ton is equal to 2240 l , 1.12 times as a short ton , or 35 c of salt water with a density of 64 lb\/ft Â ( 1.025 g\/ml ) .