55 gallons of water weighs approximately 458.7 pounds. This calculation is based on the fact that one gallon of water weighs about 8.34 pounds at room temperature. To find the weight of 55 gallons, you simply multiply the weight of one gallon by 55:
Calculation:
8.34 pounds/gallon × 55 gallons = 458.7 pounds
This weight can vary slightly depending on the temperature and purity of the water, but 458.7 pounds is a good estimate for most practical purposes.