Best Online Taper Degree Calculator

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Taper Degree Calculator

Taper Degree Calculation Result

Name Result
Large End Diameter (D1):
Small End Diameter (D2):
Taper Length (L):
Taper Degree (θ):
Discliamer: Don’t Rely On The Calculator Do It Manually Too

Are you tired of trying to measure the angle of a taper by eye? Introducing the Taper Degree Calculator, your new best friend in the workshop. 

Whether you’re working on metalwork, woodworking, or any other project that requires precise taper angles, this handy tool will save you time and frustration. 

With just a few simple measurements, the Taper Degree Calculator will give you the exact degree of your taper, ensuring your project comes out perfectly every time. 

The Formula Of The Taper Degree Calculator

Certainly, the formula used in the above Calculator can be expressed in a manual calculation form as follows:


Taper Degree (θ) = atan((D1 – D2) / (2 * L)) * (180 / π)


  • D1 = Large End Diameter in millimeters (mm)
  • D2 = Small End Diameter in millimeters (mm)
  • L = Taper Length in millimeters (mm)
  • π (Pi) is approximately equal to 3.14159

Basic Example To Perform Calculation

Certainly! Let’s work through a basic example using the above Calculator. 

In this example, we’ll calculate the taper degree (θ) for a tapered object with the following measurements:

  • Large End Diameter (D1): 20 mm
  • Small End Diameter (D2): 10 mm
  • Taper Length (L): 50 mm

Substitute the values:

  • D1 = 20 mm
  • D2 = 10 mm
  • L = 50 mm
  • π (Pi) is approximately equal to 3.14159

Manual Calculation:

  1. Calculate the difference between D1 and D2: 20 mm – 10 mm = 10 mm
  2. Divide the result by twice the Taper Length: (10 mm) / (2 * 50 mm) = 0.1
  3. Take the arctangent (inverse tangent) of the result: atan(0.1) ≈ 5.71 degrees

So, in this example, the Taper Degree (θ) is approximately 5.71 degrees.

Now, you can use the Taper Degree Calculator with these values to verify the result:

  • Large End Diameter (D1): 20 mm
  • Small End Diameter (D2): 10 mm
  • Taper Length (L): 50 mm

Click the “Calculate Taper Degree” button, and the calculator should display a result close to 5.71 degrees.

Final Thoughts

The Taper Degree Calculator is a valuable tool for anyone working with tapered objects or surfaces.

It simplifies the process of calculating taper angles and degrees, saving time and effort.

Whether you are a machinist, engineer, or hobbyist, this calculator can help ensure precision in your work.

With its user-friendly interface and accurate results, it is an essential addition to any toolbox or workshop.

So why waste time and risk errors manually calculating taper degrees when you can use this convenient and reliable online tool?

Try the Taper Degree Calculator today and experience the ease and accuracy it offers in measuring tapers.