1 US gallon = 0.0038 (0.00378541178) kL
1,000 litres ( yes,that's a KL) is approximately 264.172 US Gallons.
There is no answer for this. Gallons are different in US and Imperial usage ( You don't say WHICH ) and further, a gallon of water is different weight than a gallon of paint or a gallon of oil. -You have not defined "gallon" and you have not said which gallon .You need to write this question more carefully.
That's going to heavily depend on the capacity of the barrel. When youhave that number, here's a conversion factor that might help:1 US fluid gallon = 0.00378541 kl (rounded)
.01 kl
0.2 kl
That is 0.0025 Kl
297 _________ KL
4 kl
1 kL
1 kiloliter is in 1 kiloliter
356 kl
41.3 Kl