How to Calculate the Area of a Pipe

How to Calculate the Area of a Pipe
••• vchal/iStock/GettyImages

The surface area of a pipe represents the area of the pipe material that is exposed. You may want to find the surface area if you are painting a pipe so you can estimate how much paint you will need. To find the surface area of a pipe, you need to know the length of the pipe and the radius.

    Measure the length of the pipe with the ruler and call the result L.

    Measure the diameter of the pipe and call the result D. The diameter is the distance from one side of the pipe, through the center, to the other side of the pipe.

    Plug in L and D into the following equation to calculate the surface area of the pipe: 3.14 x L x D. For example, if you had a pipe with a length of 20 feet and a diameter of 2 feet, you would get 3.14 x 20 x 2 and find that the surface area of the pipe equals 125.6 square feet.

    Things You'll Need

    • Ruler or measuring tape
    • Calculator


    • Make sure you are using the same units to measure the length and the diameter. For example, if you measure the diameter in inches, you must also measure the length in inches.

Related Articles

How to Calculate the Beta Ratio of a Flow Orifice
How to Measure a Pipe Bend Radius
How to Calculate Surface Area From Volume
How to Calculate the Diameter of a Circle From a Linear...
Characteristics of Aquatic Plants
How to Calculate Diameter to Square Feet
How to Calculate Volume From Centimeters
How to Find the Area of Squares
How to Calculate the Volume and Circumference of a...
How to Calculate Wheel Circumference
How to Find the Lateral Area of a Square Pyramid
How to Figure the Cubic Yards in a Circle
How to Find the Cross Sectional Area of a Pipe
How to Convert Metric Tons to Cubic Meters
How to Calculate Hydraulic Cylinder Tonnage
How to Find the Area of Triangles & Trapezoids
How to Convert Centimeters to Centimeters Squared
How to Calculate Sides of a Triangle
How to Calculate Sphere Size
How to Calculate Perimeter and Area Ratio

Dont Go!

We Have More Great Sciencing Articles!