---
title: "Miter Angle Calculator"
description: "Perfect miter cuts for corners and multi-sided frames — free."
image: "https://nestingcalc.com/og-default.png"
url: "https://nestingcalc.com/miter-calculator/"
locale: "en"
---

# Miter Angle Calculator

Perfect miter cuts for corners and multi-sided frames — free.

Enter the corner angle and get the miter setting for each piece, or enter the number of sides for polygon frames. The calculator also shows the miter-gauge complement so you can set up either the saw or the gauge.

Interactive calculator (open in browser): [https://nestingcalc.com/miter-calculator/](https://nestingcalc.com/miter-calculator/)

## FAQ

How do I cut an odd corner that is not 90°?

Measure the actual corner angle with a protractor or angle finder, enter it, and cut each piece at half the difference from 180°. The calculator gives the exact setting — a 92° corner needs 44° cuts, not 45°.

Why is my miter joint open on the inside?

Usually the corner angle was measured wrong or the pieces were cut at complementary-but-opposite settings. Recut one piece with the saw a hair steeper; test on scrap before cutting stock.

What about crown molding?

Crown molding sits at a spring angle against wall and ceiling, so the cut is compound (miter + bevel). This calculator covers flat miters; for crown, use the wall-corner mode with the measured angle and your saw's crown-nesting method.

## Related calculators

-   [Baluster Spacing Calculator](https://nestingcalc.com/baluster-spacing-calculator/)

    Equal baluster and spindle spacing that passes the 4-inch rule — with a visual layout. Free.

-   [Linear Cutting Calculator](https://nestingcalc.com/linear-cutting-calculator/)

    Optimize cuts for bars, pipes and profiles — minimize waste, free.

-   [Flooring Calculator — Laminate & Vinyl Plank](https://nestingcalc.com/flooring-calculator/)

    Planks, boxes and cost for laminate or vinyl floors — with offcut reuse between rows. Free.

## Related guides

-   [Crown Molding Angles: 38°, 45° and 52° Spring Angle Charts](https://nestingcalc.com/guides/crown-molding-angles/)

    Miter and bevel settings for flat-cutting crown molding — charts for the three standard spring angles and for corners that are not 90°.

-   [Baluster Spacing: Code Rules and Equal Layout](https://nestingcalc.com/guides/baluster-spacing-code/)

    The 4-inch sphere rule, how many balusters you really need, and how to mark equal spacing without drift.

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