How to change acres to hectares

How to change acres to hectares?

We are working with both units, acres and hectares. The user can easily switch the units on his account. 

Log in to your account on Agremo Web App.

Click on the SETTINGS button which is located in the upright corner.

Click on PROFILE - USER PREFERENCES 

Click on field METRIC SYSTEM

And chose the METRIC for Hectares or IMPERIAL for Acres and click on SAVE.