Bathtubs are available in many sizes, a typical size being 30 inches wide and 60 inches long. The inside measurements of this tub could be 23 inches wide, 15 inches deep to the water level and 54 inches long. This tub holds about 80 gallons of water. If this is an extra deep tub, it might hold up to 110 gallons. Clawfoot tubs can hold anywhere between 40-60 gallons of water. That means one good soak could completely drain your 40-gallon water heater. That may not be a consideration for you, but the rest of your busy household might be inconvenienced when someone is using the tub. Simply multiply the length x width x depth x 7.5 and you will have your answer. There are 7.5 gallons in a cubic foot Ralston Cast Iron Clawfoot Tub Imperial Feet Bathroom. Fascinating How Many Gallons Does A Bathtub Hold Of Water Normal. How Many How Many Gallons Does A Bathtub Hold picture bottom is part of the post in How How Many Gallons Of Water Does A Bathtub Hold Water Damage Los Hold Ae Bath And Shower Dorya 69 X 28 Clawfoot Bathtub Reviews. The average bathtub holds between 25 and 45 gallons of water. They come in many different shapes, however, such as circular or The duration of a bath, on the other hand, does not change the amount of water used. A very small bathtub might hold 40 gallons, while a larger single person bathtub could easily hold 100 gallons or more. My bath tub holds 110 gallons (pictured above), and my 50 gallon water heater couldn’t even fill it with enough hot water to use the whirlpool jets. The standard bathtub, which measures 60 inches long by 30 inches wide, holds approximately 35 to 50 gallons of water. Larger units, such as soaking tubs or Acrylic Versus Cast Iron Clawfoot Bathtub Customers often ask us which is Many articles exist online comparing these two types of stand alone At 8 pounds per gallon a 60 gallon tub full would weigh 480 pounds just from water. “I don’t know if the “holds heat” thing is true or not, but I do know that my Shop our selection of Clawfoot Bathtubs in the Bath Department at The Home Depot.