How many gal are there in a 18X54' pool?

To calculate the volume of an 18x54-foot pool, first determine the pool's area in square feet, which is 18 feet (diameter) x 54 feet (length). Assuming it's a circular pool, the formula for the area is πr², where r is the radius (9 feet). The volume in cubic feet can be calculated by multiplying the area by the depth. To convert cubic feet to gallons, use the conversion factor of 7.48 gallons per cubic foot.

For a more accurate answer, you would need to specify the depth of the pool.