Table of content
Introduction
Calculating the weight of steel pipe per foot is a good way to calculate the weight of the entire pipe, making it easier to install and transport. There’s a formula to refer to for calculating the weight of steel pipe. This article will explain how to calculate the weight of steel pipe.
What is the Weight of Steel Pipe Per Foot?
The weight of steel pipe refers to its load-bearing capacity. That is, the amount of weight per foot of steel pipe it can bear (usually expressed in pounds or kilograms).
That is: Weight = 10.69 × (Outer Diameter – Wall Thickness) × Wall Thickness
Outer diameter and wall thickness vary depending on the pipe’s specifications.
How to Calculate Weight Per Foot of Steel Pipe?
There are two ways to calculate the weight per foot of steel pipe:
1. Use a calculator using the formula.
2. Use an online calculator.
Take a 4-inch Schedule 40 steel pipe as an example: it has an outer diameter of 4.5 inches and a wall thickness of 0.237 inches.
Weight = 10.69 × (4.5 – 0.237) × 0.237 = 10.78 lbs/ft
How Much Does Schedule 40 Steel Pipe Weigh Per Foot?
Different sizes of Schedule 40 steel pipe have different weights. Below is a table of different sizes of Schedule 40 steel pipe:
| Pipe Size (NPS) | Outside Diameter (in) | Wall Thickness (in) | Weight (lbs/ft) |
|---|---|---|---|
| 1/2″ | 0.84 | 0.109 | 0.85 |
| 1″ | 1.315 | 0.133 | 1.68 |
| 2″ | 2.375 | 0.154 | 3.66 |
| 4″ | 4.5 | 0.237 | 10.79 |
| 6″ | 6.625 | 0.280 | 18.97 |
Use the table above to calculate the weight using a formula or an online calculator.

What is the Weight of a Pipe by Foot?
The following data is used to calculate the weight of a pipe:
- Outer diameter of the pipe
- Wall thickness
- Material density
It is important to use consistent units.
Let’s look at unit conversions using the following examples:
- 1/2-inch pipe** = ~0.85 lbs/ft
- 1-inch pipe** = ~1.68 lbs/ft
- 4-inch pipe** = ~10.8 lbs/ft
How Much Does 4-inch Steel Pipe Weigh Per Foot?
4-inch Schedule 40 steel pipe has an outer diameter of 4.5 inches and a wall thickness of 0.237 inches. Using the above formula, we can calculate its weight to be approximately 10.75 lbs.
If a pipe is 20 feet long, the total weight is: 10.79 lbs x 20 feet = 215.8 lbs.
Knowing the weight is helpful for shipping, handling, and installing tools.
Summary
If you need to calculate the weight of a steel pipe, this article hopefully helps.
Here’s a summary of the essential information for calculating steel pipe weight:
Formula: Weight = 10.69 × (Outer Diameter – Wall Thickness) × Wall Thickness. Be sure to use consistent units.
Also, be aware of the specifications and material of the steel pipe being calculated.
You can also use an online calculator.
I hope this article helps you solve your steel pipe weight calculation problems.



