Triangle Incenter Calculator

What is Triangle Incenter?

The incenter is the centre of the largest circle that fits inside a triangle — the point where the angle bisectors meet, weighted toward the longer sides.

How it works

We compute the side lengths, form the side-weighted average of the vertices for the incenter, then use r = K/s for the inradius and draw the incircle.

1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Realistic sample

Type or paste any realistic input — the tool computes the result locally and instantly.

Common mistakes

Expecting a server round-trip

Nothing is uploaded — every tool in this category runs entirely in your browser.