If something is 4' x 32" and has no third dimension, it is an area and not a volume. No other information was supplied so an answer cannot be found for gallons, which is a measure of volume.
230 pounds of water would be equal to approximately 27.6 gallons.
There are 8 pints in a gallon, so 32 pints would equal 4 gallons.
For 1 quart per 100 gallons, in 15 gallons you would need 0.15 quarts. Since there are 32 ounces in a quart, you would need 4.8 ounces for 15 gallons.
If filled to the top it would hold 6.34 gallons.
If you're referring to plain water then 170 pounds would be 20.4 gallons.
2.75 gallons.
3.246753 gallons
My guess would be 7.48 gallons since that is how many gallons of water is in a cubic foot
gallons are not a unit of measurement for weight. that would be most definitly 10000000000000000000000000000000000000000000000000000 gallons
You would divide quarts by '4' to find how many gallons.
You cannot measure paper in gallons -
300 to 800 gallons
For plain water, 250kg would be 66.1 gallons.
For plain water, 30kgs would be 7.93 gallons.
There are four quarts in a gallon, so it would be two gallons.
You would need 13.13 US gallons or 10.93 Imperial gallons.
My answer would be 18.75 gallons