Cubic Feet Converter

About the Cubic Feet Converter

The cubic foot (ft³) is a standard unit of volume in the US customary system, used for measuring everything from refrigerator capacity to natural gas consumption, HVAC airflow, and water utility billing. One cubic foot equals 1,728 cubic inches, 7.48 US gallons, or 28.32 liters.

This multi-direction converter accepts input in six different volume units and outputs results in cubic feet, cubic meters, gallons, liters, cubic yards, cubic inches, quarts, and CCF (hundred cubic feet, the standard water billing unit). Preset buttons cover common volumes from 1 ft³ to 1 MCF (1,000 ft³).

Whether you are sizing a moving truck, calculating water usage from your utility bill, comparing refrigerator capacities, or converting between metric and imperial volume units, the page keeps the surrounding volume scales visible alongside comparisons to everyday objects like shoeboxes, fridges, and shipping containers. It is also helpful for estimating storage, utility, and logistics requirements with consistent units.

When This Page Helps

Cubic feet appear in US appliance specs, HVAC ratings, water bills, and natural gas statements, but many people think in gallons or liters. Keeping those units together with CCF makes it easier to reconcile appliance specs, utility usage, and storage estimates without switching between separate references.

How to Use the Inputs

1. Select the input unit from six options (ft³, m³, gallons, liters, yd³, in³).
2. Enter the volume value or click a preset for common reference volumes.
3. Choose your decimal precision.
4. Read all eight output cards showing conversions in every unit.
5. Use the comparison bars to visualize the volume against everyday objects.
6. Expand the reference table for a detailed volume lookup.

Example Calculation

Tips & Best Practices

• Your water bill likely uses CCF (100 cubic feet). 1 CCF = 748 gallons.
• Natural gas is billed in MCF (1,000 cubic feet) or therms (1 therm ≈ 100 ft³ of gas).
• Refrigerator capacity in ft³: compact = 3–5 ft³, standard = 18–22 ft³, side-by-side = 22–28 ft³.
• A standard 20-ft shipping container holds about 1,170 ft³.
• For cubic yards, divide cubic feet by 27 (3 × 3 × 3).
• HVAC airflow (CFM) is cubic feet per minute — multiply by runtime minutes for total volume.

Cubic Feet in Everyday Life

The cubic foot is the go-to volume unit for US consumers. Refrigerators, freezers, ovens, and microwaves all list their interior capacity in cubic feet. Moving companies estimate truck sizes in cubic feet, and storage units are often described by their floor area plus an assumed height.

Cubic Feet in Utilities

Water utilities bill in CCF (100 ft³) or thousands of gallons. Natural gas is metered in cubic feet and billed in therms or MCF. Understanding these units helps you audit your utility bills and compare usage over time. For example, the average US household uses about 80–100 gallons per person per day, or roughly 10.7–13.4 ft³ per person per day.

Converting Dimensions to Volume

To find the volume of a rectangular space in cubic feet, measure length, width, and height in feet and multiply them together. For irregular shapes, break the space into rectangles. For cylinders (like tanks), use V = π × r² × h where r and h are in feet. This gives volume directly in cubic feet.

Frequently Asked Questions

• How many gallons in a cubic foot?

  1 cubic foot = 7.48052 US gallons. For imperial gallons, 1 ft³ = 6.22884 imp gal.

• How many liters in a cubic foot?

  1 cubic foot = 28.3168 liters. That is the same as about 7.48 US gallons.

• What is CCF on my water bill?

  CCF stands for Centum Cubic Feet, meaning 100 cubic feet. 1 CCF = 748.05 gallons. It is the standard billing unit for most US water utilities.

• How do I convert cubic feet to cubic meters?

  Divide by 35.3147. For example, 100 ft³ = 2.832 m³.

• How many cubic feet in a cubic yard?

  Exactly 27. A cubic yard is 3 ft × 3 ft × 3 ft.

• How do I calculate the cubic feet of a room?

  Multiply length × width × height, all in feet. A 12 × 10 × 8 room = 960 cubic feet.