How to Measure a Band Saw for Blade Size

A band saw is a saw with a blade that is made up of a solid strip of metal with cutting teeth that moves around two wheels at very high speeds.

Band saws function best with a sharp blade.Band saws function best with a sharp blade.
Just like any other saw blade, band saw blades become dull over time and need to be replaced with the correct sized blade. In order to determine the blade size for a band saw, you simply make a few measurements, insert the measurements into a formula and solve.

Move the band saw's wheels to the middle of their tension-adjustment range.

Measure the distance between the center points of each wheel. Write down the value as "D."

Measure the radius of each wheel. Write down the values as "R1" and "R2."

Insert the values into the following equation: (R1π) + (R2π) + (2D).

Use a calculator to solve the equation. The resulting answer is the band saw blade length.

Things You Will Need

  • Measuring tape
  • Pen/pencil
  • Paper
  • Calculator

Tip

  • Most band saws have the correct blade size for the saw printed somewhere on the machine itself. If you cannot locate the blade size on the machine, however, these steps can help you calculate the proper size.

About the Author

Alexander Poirier began writing professionally in 2005. He worked as the editor-in-chief of the literary magazine "Calliope," garnering the magazine two APEX Awards for excellence in publication. Poirer graduated from the University of the Pacific with a Bachelor of Arts in English.