That depends what the billion are.
Are they one billion quarts ? Barrels ? Pints ? Liters ? Cups ? Ounces ? Drops ?
A billion US fluid gallons = 832,674,184.629 Imperial gallons (rounded)
there are 1.3 sextillon liters or 343 billion billion gallons of water
1 billion liters = 264,172,052 US gallons.
8 billion gallons is 24,551 acre-feet.
40 billion gallons
There are 0.000000000264172 gallons in one billion cubic microns.
seven billion gallons
449,092,450.91 liters
There are approximately 696 billion gallons of water in Lake Winnebago.
Multiply gallons by 8.345 to get your answer.
8 billion barrels (oil) equates to 336 billion US gallons.
Aproximately 2 billion
You do the math: A gallon of water weighs a little over eight pounds: 8.34 lbs. One Ton = 2,000 lbs, 1 billion tons of water = 2,000 billion lb Divide 2 thousand billion pounds by 8.34 and there is your answer in gallons: 240 billion gallons