Calculate the volume of water or fluid in a pipe based on its diameter and length. Results are provided in gallons, liters, and cubic feet. Useful for plumbing, irrigation, and industrial piping projects to determine water capacity and drainage requirements.
Enter Your Measurements
Results
Volume
16.32
gallons
Volume
61.78
liters
Volume
2.182
cubic feet
Water Weight
136.1
lbs
Formula
How to Use This Calculator
How to Use
- 1
Enter the inner diameter of the pipe in inches (not the outer diameter).
- 2
Enter the total pipe length in feet.
- 3
Results show the volume in gallons, liters, and cubic feet, plus the weight of water.
Frequently Asked Questions
Frequently Asked Questions
How many gallons of water in 100 feet of 1-inch pipe?
What is the inside diameter vs nominal pipe size?
How much does water in a pipe weigh?
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About This Calculator
This calculator uses the formula: Volume = π × (Diameter ÷ 2)² × Length × 12 | Gallons = Volume in³ ÷ 231. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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