5.283441 US gallons.
20000
5 US gallons is 18,927.1 milliliters (mL)
18,930 ml
3,255,000 milliliters is 859.88 gallons.
15 gallons is 56,781.18 milliliters.
80 cups.
183.48
It depends upon the average depth of the pool.
20000
Nine US gallons is 34,068.7 milliliters.
10.4 US gallons = 39,368.3 milliliters.
10.1 US gallons is 38,232.7 milliliters.