How to Determine Band Saw Blade Length
Bandsaw blades come in a wide variety of lengths, widths, thicknesses, and tooth configurations. In order to determine bandsaw blade length for your saw, please reference our Bandsaw Blade Lengths & Manufacturers page for a list of common saws and sizes. If you cannot find your saw model or are unable to locate a manual, Detroit Band Saw can teach you how to determine bandsaw blade length. You will need a tape measure, pencil/pen, and a clear path or floor space. Just follow these 5 steps.
![](https://www.detroitbandsaw.com/wp-content/uploads/2014/11/101_Band_Saw_Blade.jpg)
Step 1
Make a mark on the blade.
![](https://www.detroitbandsaw.com/wp-content/uploads/2014/11/102_Band_Saw_Blade.jpg)
Step 2
Place a piece of tape on the floor and make a mark to determine your starting point.
![](https://www.detroitbandsaw.com/wp-content/uploads/2014/11/103_Band_Saw_Blade.jpg)
Step 3
Roll the blade in a straight line until the mark you previously made comes back and hits the floor.
![](https://www.detroitbandsaw.com/wp-content/uploads/2014/11/104_Band_Saw_Blade.jpg)
Step 4
Make a second mark on a piece of tape.
![](https://www.detroitbandsaw.com/wp-content/uploads/2014/11/105_Band_Saw_Blade.jpg)
Step 5
Measure the distance between your two marks on the floor. You now know the length of your bandsaw blade!
Blade Finder: Find Your Bandsaw Blade Instantly
Blade Type:
Blade (Width):
Length(ft):
Length(in):
Length(frac/in):
Toothset:
![](/wp-content/uploads/2022/01/info.png)
If you do not have an existing blade,
there is a mathematical equation to help determine saw blade length in inches.
- Fix the pulleys or wheels into working position
- In inches, determine the distance from the center hub on the upper and lower band wheels (later referred to as “C”)
- In inches, determine the radius of each wheel. The radius is the measurement from the center hub to the outside of the wheel (later referred to as “R1 and R2”)
- Apply the following formula:
(R1 x 3.1416) + (R2 x 3.1416) + (2 x C) = Saw blade length
![saw_length_formula](https://www.detroitbandsaw.com/wp-content/uploads/2014/11/saw_length_formula.jpg)