freesewing/sites/dev/docs/reference/api/utils/cbqc

---
title: utils.cbqc
---

The `utils.cbqc` value holds `0.55191502449351`.
This is the value to best approximate a (quarter) circle with cubic Bézier curves,
as explained in the [Approximate a circle with cubic Bézier curves
](https://spencermortensen.com/articles/bezier-circle/) article by Spencer Mortensen.

:::tip
cbqc stands for Cubic Bezier Quarter Circle
:::

## Signature

```js
Number utils.cbqc
```