In order to work out a volume one must have 3 measurements not 2. The length, the breadth, and the height in either centimeters or inches.
19.64 US gallons.
10.38961 gallons (rounded)
84.16 US gallons
Volume of the pipe = 4.896 gallons
Area = 320in2
A 12 inch diameter round pipe will hold 4.89 UK gallons or 5.88 US gallons per foot.
One foot of 3 inch pipe will hold approximately 0.625 gallons of water.
30.55 gallons (rounded) for every inch the water in the tub is deep.
100 feet of 3-inch pipe holds 36.73 gallons of water.
17,000 gallons
1056 GALLONS
You would have 16 inch wheels and tires.