Welcome to Android Central! Which Blackberry do you have, running which version of the Blackberry OS? And which version of the Blackberry Desktop software do you have?
The best thing to do would be to export your calendar events from the Blackberry calendar to a csv file, then import that file into your Google Calendar in the cloud.
https://support.google.com/calendar/answer/37118?hl=en. The events will sync automatically with any Android device that you log into with that account. Going forward, you should use the Google Calendar app (or 3rd party calendar apps that sync with Google Calendar) to add, delete, or edit events.
Are you saying you have a Google account that has contacts stored on it? Go to contacts.google.com on your computer browser to see. If so, then those will also sync automatically with your Android phone.
This guide might be helpful in general:
http://forums.androidcentral.com/ge...ng-started-android-updated-2015-lollipop.html