I have never seen a cu. in. figure for it, so I took a chance, I take 5900 and divide by 16.39. But not always is the 5900 all that accurate.
Anyway, I like the cu. in. better than the flipping liters. As I like inches for bolts and nuts, I hate that mm stuff, can you believe it, for every mm size there is 4 different threads ? With inches you have 2, UNF and UNC and you are good to go. But the frogs and the jerrys had to have 4... And for inches you can go to a hardware store and get a tap or a die for a 1/2" UNF and for a UNC bolt or nut. For a 12 mm you get only 1 tap and die at the hardware store. The other 3 you have to special order. What a joke is that.
But I hear a lot of Americans who wants metric.
Bill