Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Miter Saw - Calculate Sawing Angle

Calculate miter saw protractor angles for skirting and decorative mouldings work.

Miter saw protractor angle

The miter saw angles for cross cuts and decorative mouldings in corners or other locations can often be hard to measure correctly.

With this tool you measure the three lengths a, b and c as indicated in the drawing below. The miter saw cutting angles are easily calculated by inputting the values in the miter saw calculator below.

  • Angle A (deg):
  • Angle B (deg):
  • Angle C (deg):
  • Miter Saw Angle (deg):
  • Skirting (Decorative Moulding) Saw Angle (deg):

The Skirting Saw Angle can be useful when cutting decorative mouldings, skirting boards and similar where the angle between the pieces are not 90 degrees and the cross cuts are not 45 degrees.


(enable pop-up)

Tip! - Distance c can be difficult to measure in corners. It may be helpful to use a stick or something similar with a known length for c. Position the stick somewhere in the corner as indicated in the drawings below. Measure the lengths a and b from the bottom of the corner to the ends of the stick.

Skirting panel decorative moulding miter saw angle cut calculation

Examples - Miter Saw Angle Calculator

The first example below with the default values used in the calculator above calculates the miter saw angle to 26.4 degrees for length a = 33.5, b = 40 and c = 39.1.

Miter saw angle calculation

The second example calculates the miter saw angle to -26.5 degrees (miter saw opposite side compared to the first example) for lengths a = 33.5, b = 4 and c = 62.6.

Related Topics

  • Miscellaneous

    Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

Related Documents


Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .


This page can be cited as

  • The Engineering ToolBox (2004). Miter Saw - Calculate Sawing Angle. [online] Available at: [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter