Cubic Feet To Gallons Converter

What is a Cubic Feet to Gallons Conversion?

A Cubic Feet to Gallons Converter is a tool for translating a measurement of volume from cubic feet (ft³), a unit based on dimensions, to US gallons, a unit commonly used for liquid capacity. This conversion is crucial for anyone needing to determine the liquid capacity of a space, such as a swimming pool, a tank, or an aquarium.

How to Use the Cubic Feet to Gallons Converter

Our converter is simple and provides instant, two-way conversions.

1. Enter a value: Input a number into either the "Cubic Feet (ft³)" or "US Gallons" field.
2. View the result: The other field will automatically update with the converted value.
3. Swap units: Click the swap button () to reverse the conversion direction.

The Conversion Formula

The conversion is based on a standard definition:

$$ 1 \text{ cubic foot} \approx 7.48052 \text{ US gallons} $$

The formulas are:

$$ \text{US Gallons} = \text{Cubic Feet} \times 7.48052 $$

$$ \text{Cubic Feet} = \frac{\text{US Gallons}}{7.48052} $$

Practical Example: Pool Volume

You have a rectangular swimming pool that is 20 feet long, 10 feet wide, and 5 feet deep. You need to know how many gallons of water it will hold.

• Step 1: Calculate the volume in cubic feet.
  Volume = Length × Width × Depth = 20 ft × 10 ft × 5 ft = 1000 ft³
• Step 2: Convert cubic feet to gallons.
  Gallons = 1000 ft³ × 7.48052 ≈ 7480.52 gallons
• Using the calculator: After calculating the volume of 1000 ft³, you could enter "1000" in the ft³ field to instantly get 7480.52 in the gallons field.

This is essential for ordering the right amount of water or chemicals for the pool. For other volume conversions, use our general Volume Converter. To calculate the initial volume, our Cubic Yard Calculator can be helpful for various shapes. To convert volume to weight, try the Cubic Feet to Pounds Calculator.

Why This Conversion Matters

• Pools and Spas: It's the standard way to determine water capacity for chemical treatment.
• Aquariums: Helps aquarists choose the right filter and equipment for their tank volume.
• Construction & Landscaping: Used for calculating the capacity of retention ponds, water features, and drainage systems.

For more information on US customary units of measurement, you can visit the National Institute of Standards and Technology (NIST). For pool and spa maintenance information, a resource like Pool.com offers extensive guides.