Miter and Bevel Angle Chart
The miter setting is never the corner angle. For an N degree corner you set (180 − N) ÷ 2. This table gives the settings directly.
| Inside corner | Miter gauge setting | Slip saw bevel |
|---|---|---|
| 30° | 75° | 15° |
| 45° | 67.5° | 22.5° |
| 60° | 60° | 30° |
| 75° | 52.5° | 37.5° |
| 90° (right angle) | 45° | 45° |
| 105° | 37.5° | 52.5° |
| 120° | 30° | 60° |
| 135° | 22.5° | 67.5° |
| 150° | 15° | 75° |
The two settings always add to 90°. A miter gauge reads from the saw fence; a slip saw bevel reads from the miter saw base. On a two-axis saw you set the miter on the gauge and the bevel on the saw — they are the same two numbers in different places.
Common corners
- Picture frame, four sides — all four corners are 90° inside, so four cuts at 45°.
- Hexagon — all 120° inside, so 30° miter, six cuts.
- Octagon — 135° inside, so 22.5° miter, eight cuts.
- Crown molding, inside corner — the joint angle varies; measure the actual wall angle.
When the joint won't close
A joint that gaps on the backside means the angle is off by a fraction, the stock is out of square, or the blade is dull. Cut test pieces from scrap first. Mitered joints magnify any error: a half degree error leaves a visible gap at 24 inches.
Where to buy
Compare current pricing across major suppliers — prices vary by region and season.
Related tools
WoodCalc is a free independent tool. We may earn a commission when you buy through links on this page. Our recommendations are not influenced by any manufacturer or retailer. See our affiliate disclosure.