On how many devices can I install Office?

Each user can install Office on 5 PC's or Macs, 5 tablets and 5 mobile phones. This means you can install Office on a maximum of 15 devices simultaneously.

Per user you also have 1TB of online storage on OneDrive. This helps you to easily access your files on all devices.

Related articles:

What is included in Office 365 Plus?
How much online storage space do I get with OneDrive?