Use this Pipe Volume Per Foot Chart to find the approximate volume of water contained in common pipe sizes. The chart provides values in gallons, liters, cubic feet, and cubic meters per foot of pipe length.
This reference is useful for plumbing, irrigation, HVAC, construction, water treatment, and engineering calculations.
For custom pipe dimensions, use the Pipe Volume Calculator.
Pipe Volume Per Foot Chart (Gallons)
| Pipe Diameter | Gallons Per Foot |
|---|---|
| 1 Inch | 0.0408 |
| 1.5 Inch | 0.0918 |
| 2 Inch | 0.163 |
| 2.5 Inch | 0.255 |
| 3 Inch | 0.367 |
| 4 Inch | 0.653 |
| 5 Inch | 1.019 |
| 6 Inch | 1.469 |
| 8 Inch | 2.610 |
| 10 Inch | 4.079 |
| 12 Inch | 5.875 |
Pipe Volume Per Foot Chart (Liters)
| Pipe Diameter | Liters Per Foot |
| 1 Inch | 0.154 |
| 1.5 Inch | 0.347 |
| 2 Inch | 0.617 |
| 2.5 Inch | 0.965 |
| 3 Inch | 1.389 |
| 4 Inch | 2.472 |
| 5 Inch | 3.857 |
| 6 Inch | 5.561 |
| 8 Inch | 9.883 |
| 10 Inch | 15.438 |
| 12 Inch | 22.242 |
Pipe Volume Per Foot Chart (Cubic Feet)
| Pipe Diameter | Cubic Feet Per Foot |
| 1 Inch | 0.00545 |
| 1.5 Inch | 0.01227 |
| 2 Inch | 0.02182 |
| 2.5 Inch | 0.03409 |
| 3 Inch | 0.04909 |
| 4 Inch | 0.08727 |
| 5 Inch | 0.13635 |
| 6 Inch | 0.19635 |
| 8 Inch | 0.34909 |
| 10 Inch | 0.54545 |
| 12 Inch | 0.78540 |
Pipe Volume Per Foot Chart (m³)
| Pipe Diameter | Cubic Meters Per Foot |
| 1 Inch | 0.000154 |
| 1.5 Inch | 0.000347 |
| 2 Inch | 0.000617 |
| 2.5 Inch | 0.000965 |
| 3 Inch | 0.001389 |
| 4 Inch | 0.002472 |
| 5 Inch | 0.003857 |
| 6 Inch | 0.005561 |
| 8 Inch | 0.009883 |
| 10 Inch | 0.015438 |
| 12 Inch | 0.022242 |
How to Calculate Pipe Volume Per Foot
Pipe volume is calculated using the volume formula for a cylinder.
Pipe Volume Formula
V = π × r² × L
Where:
- V = Pipe volume
- π = 3.1416
- r = Pipe radius
- L = Pipe length
When calculating volume per foot, the pipe length is set to one foot.
The formula can also be written as:
V = π × (D² ÷ 4) × L
Where:
- D = Internal pipe diameter
A detailed explanation of the equation is available in Pipe Volume Formula.
If you want a step-by-step breakdown, see How to Calculate Pipe Volume.
Common Pipe Size Capacities
1 Inch Pipe Volume Per Foot
A 1-inch pipe holds approximately 0.0408 gallons of water per foot. This size is commonly used in residential plumbing systems and irrigation applications.
2 Inch Pipe Volume Per Foot
A 2-inch pipe holds approximately 0.163 gallons or 0.617 liters of water per foot.
4 Inch Pipe Volume Per Foot
A 4-inch pipe holds approximately 0.653 gallons or 2.472 liters of water per foot.
6 Inch Pipe Volume Per Foot
A 6-inch pipe holds approximately 1.469 gallons or 5.561 liters of water per foot.
8 Inch Pipe Volume Per Foot
An 8-inch pipe holds approximately 2.610 gallons or 9.883 liters of water per foot.
12 Inch Pipe Volume Per Foot
A 12-inch pipe holds approximately 5.875 gallons or 22.242 liters of water per foot.
Volume of Water in a Pipe
The amount of water contained inside a pipe depends on:
- Pipe diameter
- Pipe length
- Measurement unit
Larger diameters increase pipe capacity significantly because volume increases with the square of the radius.
For exact calculations based on your pipe dimensions, use the Pipe Volume Calculator.
A detailed explanation is available in Volume of Water in a Pipe.
Pipe Volume by Material
The calculation method is the same for all round pipes because pipe volume is determined by the internal diameter.
Common pipe materials include:
- PVC pipe
- Steel pipe
- HDPE pipe
- Copper pipe
Material-specific examples are available in:
- PVC Pipe Volume Calculator
- Steel Pipe Volume Calculator
- HDPE Pipe Volume Calculator
Frequently Asked Questions
How much water does a pipe hold per foot?
The amount of water a pipe holds per foot depends on its internal diameter. A larger diameter pipe has a greater volume and can hold more water per foot of length.
How much water is in a 2-inch pipe per foot?
A 2-inch pipe holds approximately 0.163 gallons or 0.617 liters of water per foot.
How much water is in a 4-inch pipe per foot?
A 4-inch pipe holds approximately 0.653 gallons or 2.472 liters of water per foot.
How much water is in a 6-inch pipe per foot?
A 6-inch pipe holds approximately 1.469 gallons or 5.561 liters of water per foot.
How do you calculate volume per foot of pipe?
Pipe volume per foot is calculated using the cylinder volume formula with the pipe length set to one foot. The result can then be converted into gallons, liters, cubic feet, or cubic meters.
Is this chart accurate for PVC pipe?
Yes. The chart can be used for PVC pipe as long as the internal diameter matches the values shown.
Is this chart accurate for steel pipe?
Yes. Pipe material does not change the volume calculation. The internal diameter is the factor that determines pipe capacity.
What units are included in this chart?
The chart provides values in:
- Gallons
- Liters
- Cubic feet
- Cubic meters (m³)
Why is pipe volume important?
Pipe volume is used to estimate water capacity, size plumbing systems, calculate chemical dosing, design irrigation networks, and determine the amount of fluid stored inside pipelines.
Related Pipe Calculations
You may also find these resources useful:
- Pipe Volume Calculator
- Pipe Volume Formula
- How to Calculate Pipe Volume
- Volume of Water in a Pipe
- Pipe Volume Calculator Gallons
- Pipe Volume Calculator Liters
- Pipe Volume Calculator m³
- Pipe Volume Calculator Cubic Feet
- PVC Pipe Volume Calculator
- Steel Pipe Volume Calculator
- HDPE Pipe Volume Calculator
About This Pipe Volume Per Foot Chart
This chart provides quick-reference pipe capacity values for common pipe sizes used in plumbing, irrigation, construction, engineering, and industrial applications.
Use the tables above for fast estimates or the Pipe Volume Calculator for exact calculations based on your own pipe dimensions.
