Miter Angle Calculator
Find the miter saw angle for a frame or trim with a given number of sides.
Compare Your Options And Get Clear Answers
Find the miter saw angle for a frame or trim with a given number of sides.
Miter Angle Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Miter Quick Guide
Typical values for reference.
| Number of sides | Wall angle correction (deg) | Board width (mm) | Miter angle |
|---|---|---|---|
| 4 | 0 | 70 | 45.0 deg |
| 6 | 0 | 70 | 30.0 deg |
| 8 | 0 | 70 | 22.5 deg |
| 5 | 0 | 70 | 36.0 deg |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Miter Angle Calculator FAQ
Answers to common questions about this calculator.
It uses the formula shown with your inputs. Real conditions vary, so treat it as a guide.
Test on offcuts first.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.
Yes. Replace each input with your own figures and the result updates instantly.