How to do estimation in Agile?

To do estimation in Agile, start by identifying all relevant user stories. Engage in discussions to thoroughly understand the requirements for each user story. Then, create an estimation matrix to assist with evaluating the workload.

It's crucial to select an appropriate Agile estimation technique such as planning poker or T-shirt sizing. During sprint planning, ensure that the estimates align internally and consistently with the user stories as the process develops.