Software & Apps Backup & Utilities Do Some Online Backup Plans Really Allow Unlimited Data? Unlimited Backup Plans Have Some Sort of Limit, Don't They? By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated June 24, 2019 ANDRZEJ WOJCICKI / Getty Images Backup & Utilities Design Cryptocurrency MS Office Windows Linux Google Drive Apps File Types Backup & Utilities View More Tweet Share Email If you sign up for an unlimited online backup plan, do you get to backup absolutely as much as want, or are you still bound by some upper limit? How do you know if an online backup service will really let you backup all the data you like? The following question is one of many you'll find in my Online Backup FAQ: "Do 'unlimited' online backup plans really allow an unlimited amount of data to be backed up? Surely I can't really backup every single thing I want, can I?" Yes, most online backup services that have plans with the word "unlimited" in them really do allow an unrestricted amount of data to be backed up. So, yes, in those cases, you really can backup every single thing you want. In my Online Backup Comparison Chart, which lists some of my favorite services with unlimited backup plans, you can check to see which ones feature No Fair Use Limits, meaning that their user agreements do not include any limits as to the total amount of data you can back up. See What are Fair Use Limits? for more on this type of restriction and why cloud backup services, even unlimited ones, sometimes include them. Please check the Fair Use or Acceptable Use section in the terms published by any unlimited online backup plan provider if you're planning on a truly massive backup (several TBs or more). While none of my favorites list any sort of "real world" limits and most even explicitly say that there are absolutely no storage space limits in their unlimited plan(s), most do allow for future "reasonable" changes to this policy. Here are a few more questions that I'm often asked during the search for the right backup service: How Do I Decide Which Online Backup Service to Pick?How Much Online Backup Space Will I Need?Why Would Anyone Choose a Limited Plan over an Unlimited One?Can I Back Up All My Devices Using One Backup Plan?Are Free Online Backup Plans Really Free or Just Free Trials?Are Online Backup Plans Priced by the Month or Year? Here are more questions I answer as part of my Online Backup FAQ: How Exactly Does Online Backup Work?Is Online Backup Better Than Local Backup?What's the Difference in Cloud Backup and Online Backup?Is It Safe to Send & Store My Private Data on the Internet?How Long Will the Initial Backup Take?Will My Internet Be Slow If I'm Backing Up All the Time?Can I Restore Old Versions of Files I Back Up?Do I Have to Back Up Everything on My Computer or Device?What Exactly Should I Back Up?Do Online Backup Services Limit File Formats or Sizes?If My Backed Up Files Are Online, Can I Access Them Anywhere?Where Exactly Are My Backed Up Files Stored on the Internet?How Do I Restore a Backed Up File?If My Entire Computer Dies, How Can I Get My Files Restored?Why Aren't Dropbox, Google Drive, SkyDrive, Etc. In Your List?How Do You Rank Online Backup Services in Your Reviews?Where Is JustCloud & ZipCloud in Your Online Backup List?What Online Backup Service Do YOU Use, Tim?