Here's How Android Users Can Backup Contacts On Phone

Losing or breaking your phone doesn't mean that you will lose all your contacts and photos too. Before it gets too late, here is a quick tutorial on how to back up all the contacts from Android phone to a safe location on the cloud, on your PC, your memory card.
On the Cloud
It is known to everyone that Android is a Google product. The operating system has tight and excellent integration with all Google services, such as Gmail and Google Contacts. Thus, Android phone users are advised to synchronise their contacts with Google Contacts. This means that you are saving contacts on Google’s server/on the cloud and can access contacts from any PC or browser. However, it's highly recommended that Google Contacts should be organised before syncing. This is because Gmail automatically adds all the e-mail addresses you have ever exchanged mails with as a contact in your Google Contacts.
Step 1
Go to Settings > Privacy, and make sure that 'Back up my settings' and 'Automatic restore' are checked off.
Step 2
Go to Settings > Accounts and sync, open your Gmail account, and check off all options. With these settings in place, your contacts, system settings, applications, calendar, and e-mail will be restored whenever you set up a new Android phone with that same Gmail account.

On SD card or Hard Drive
Another option is to export contacts as a CSV file on your phone’s SD card. Most Android phones come with an option to 'Export your contacts to SD card.' If this option is missing from your Android phone, you can download and use Backup Contacts for the same purpose.
Step 1
Download the application for free from the Android Market.
Step 2
After starting the application, simply select the ‘Backup To SD card’ option. The application will then backup your contacts to the root of your SD card.
Step 3
Backup can now be transferred to PC. Connect the phone to your computer, select 'USB Storage Mode' and find the file. You can then copy-paste it to your hard drive and you are done.
Also, users can use the application to backup their contacts to their Dropbox folder, or export them in a common format like CSV by selecting the desired option.