Skip to main content
VolumeCalcKit
Shipping & Freight

Cubic Feet Calculator

Calculate volume in cubic feet (ft³) from inches, feet, yards, or metric dimensions with optional material pricing estimation.

Instant results
Real-time calculation
Accurate & reliable
Standard SI formulas
Free to use
No sign up required
Height (H)Width (W)Length (L)
Technical Dimension Schematic100% Vector
$
Cubic Feet Results
Decimals:
Total Cubic FootageLive Output
24ft³ (cu ft)
Equivalent Standard Volume Units
Cubic Inches (in³)
41,472 in3
Cubic Yards (yd³)
0.89 yd3
Cubic Meters (m³)
0.68 m3
Liters (L)
679.6 l
US Gallons (gal)
179.53 us_gal

Mathematical Formula & Step-by-Step Derivation

SI Standard Math
General Formula:
Volume (ft³) = Length(ft) × Width(ft) × Height(ft) × Quantity
Live Calculation With Your Input Values:
11. Cubic Feet Formula
Formula: Volume (ft³) = Length(ft) × Width(ft) × Height(ft) × Quantity
Substituted: V = (4 ft) × (3 ft) × (2 ft)
Step Result: V = 24 ft³

Equal to 0.68 m³ or 0.89 cubic yards.

Cubic Feet Formula Reference
Dimensions in Feet:

Volume (ft³) = Length(ft) × Width(ft) × Height(ft) × Quantity

Dimensions in Inches:(Length in × Width in × Height in × Qty) ÷ 1,728
Worked Example: Storage Unit & Refrigerator Space

A standard storage unit measures 10 feet Long × 10 feet Wide × 8 feet High:

• Volume = 10 ft × 10 ft × 8 ft = 800.00 cu ft (ft³)

• In Cubic Yards (yd³): 800 ÷ 27 = 29.63 cu yd

• In Cubic Meters (m³): 800 ÷ 35.3147 = 22.65 m³

• In US Liquid Gallons: 800 × 7.4805 = 5,984.42 Gallons

Common Use Cases

Common Practical Applications:

  • Landscaping & Soil: Bagged soil and mulch are sold by the cubic foot (typically 1.5 or 2.0 cu ft bags), while bulk deliveries are measured in Cubic Yards (1 yd³ = 27 ft³).
  • Ocean & Air Freight: For international cargo CBM conversion, use our CFT to CBM Calculator or the general CBM Calculator.
  • Storage & Rooms: Moving trucks, storage units, and refrigerators are all rated by internal cubic feet of usable space.

How to Calculate Cubic Feet (cu ft / ft³)

A cubic foot (ft³ / cu ft) is an imperial and US customary unit of three-dimensional volume representing the space enclosed by a cube measuring 1 foot (12 inches) on all sides.

  1. Measure Dimensions in Feet: Measure the length, width, and height in feet.
  2. If Measured in Inches: Convert inches to feet by dividing by 12, or multiply length × width × height in inches and divide the product by 1,728 (since 12 × 12 × 12 = 1,728).
  3. Multiply Dimensions: Volume (ft³) = Length (ft) × Width (ft) × Height (ft).
  4. Calculate Material Cost: Multiply total cubic feet by price per cubic foot.

Frequently Asked Questions

How do you calculate cubic feet?
Multiply Length (in feet) × Width (in feet) × Height (in feet). If dimensions are in inches, multiply Length × Width × Height in inches and divide the product by 1,728.
How many inches are in a cubic foot?
There are 1,728 cubic inches (in³) in 1 cubic foot (ft³). This is because 12 inches × 12 inches × 12 inches = 1,728.
How many cubic feet are in a cubic yard?
There are exactly 27 cubic feet in 1 cubic yard (3 ft × 3 ft × 3 ft = 27 ft³). To convert cubic feet to cubic yards, divide by 27.
How do I convert cubic feet to cubic meters (CFT to CBM)?
Divide total cubic feet by 35.3147 (or multiply by 0.0283168) to obtain cubic meters (CBM).
How many gallons of water are in one cubic foot?
One cubic foot contains approximately 7.4805 US liquid gallons of water (6.2288 Imperial gallons). One cubic foot of water weighs approximately 62.4 pounds (28.3 kg).
How many bags of mulch or soil make a cubic yard?
Since 1 cubic yard equals 27 cubic feet, it takes 13.5 bags of 2.0 cu ft mulch (or 18 bags of 1.5 cu ft mulch) to equal one cubic yard.
Custom Solutions

Need a branded Cubic Feet calculator for your business?

Get a custom calculator with your branding, units, formulas, and custom workflows. Perfect for logistics, manufacturing, and ecommerce.

Tailored dimensions & conversion units
Seamless website or ERP embed
Request a Custom CalculatorContact Us

Related Volume & Capacity Calculators

All Calculators
shipping

CFT to CBM Calculator

Convert cubic feet (CFT) to cubic meters (CBM) or CBM to CFT instantly with standard SI conversion factors.

Open calculator
shipping

CBM Calculator

Calculate shipment CBM from carton length, width, height and quantity. Enter dimensions in cm, mm, meters, inches or feet and get total cubic meters and cubic feet instantly.

Open calculator
shipping

Cubic Yard Calculator

Calculate cubic yards (yd³) from length, width, and depth in feet, inches, or meters. Includes material pricing estimation.

Open calculator
shipping

Cubic Meter & Cubic Metre Calculator

Calculate volume in cubic meters (m³) and cubic metres from mm, cm, meters, inches, or feet with instant conversions to litres, gallons, and cubic feet.

Open calculator