Do not attempt to "download Calibri for free" from shady websites. Use or simply use Microsoft Office Online or a Windows PC that already has the license. Calibri’s license does not permit redistribution, so any direct download of the original files is piracy.

If you need a font that looks and behaves like Calibri but is free for commercial redistribution, consider these or similar options: Calibri font family - Typography | Microsoft Learn

If you need Calibri on your system, here are the :

If you need a true free alternative, is your answer. Google commissioned this font specifically to be a metric-compatible substitute for Calibri. This means:

The honest answer is:

However, a common question persists among designers, students, and small business owners: