Crown Molding Angle Calculator
Compound miter and bevel saw settings for crown molding at any spring angle and corner angle.
Corner type:
Common Crown Molding Settings
| Spring° | Corner° | Miter° | Bevel° |
|---|---|---|---|
| 38 | 90 | 31.6° | 33.9° |
| 45 | 90 | 35.3° | 30.0° |
| 52 | 90 | 38.8° | 25.2° |
| 38 | 135 | 16.5° | 18.4° |
| 45 | 135 | 18.4° | 16.1° |
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How Crown Molding Compound Angles Work
Crown molding sits at an angle between the wall and ceiling, called the spring angle. Because the molding is tilted, a simple 45-degree miter cut won't create a tight joint at corners. Instead, you need compound angles — a miter setting and a bevel (blade tilt) setting used together.
The spring angle is measured from the wall to the back of the molding. Most standard crown molding has a 38-degree spring angle (also called 38/52, meaning 38° from the wall, 52° from the ceiling). Larger crown profiles often use 45 degrees.
For a standard 90-degree inside corner with 38° spring angle, set your miter saw to 31.6° miter and 33.9° bevel. For outside corners at the same settings, the miter direction reverses but the angles stay the same.
This calculator handles any combination of spring angle and corner angle, including non-90° corners found in bay windows, angled walls, and custom trim work.