Start with three numbers
Enter total capacity, used storage, and the amount your used storage normally grows each month. GB and TB can be mixed.
Storage Full Date Calculator
Mix GB + TB freelyThe full size of your phone, drive, or cloud plan.
Your average increase in used storage each month.
Not sure about monthly growth?
Try an example
Your runway
77% used58 GB free
At your current pace, you'll fill up around
—
About 4.8 months from now.How much room should you plan for?
Projected usage at the same monthly growth1 year
342 GBplan for 512 GB
2 years
486 GBplan for 512 GB
3 years
630 GBplan for 1 TB
Estimate only — a large install or unusual month can move the date.
About the estimate
What is Storage ETA?
Storage ETA turns the storage you have, the storage you use today, and your average monthly growth into a simple runway. It helps you decide when to clean up, upgrade a drive, or move to a larger cloud plan before space becomes urgent.
We calculate your runway
Remaining space is divided by monthly growth. That gives an estimated number of months left and an approximate full date.
Plan beyond the warning
The 1-, 2-, and 3-year rows project the same growth rate forward so you can compare likely needs with common storage sizes.
Monthly growth, made practical
Not sure what to enter?
Compare used storage today with roughly one month ago. If it grew from 186 GB to 198 GB, your working rate is about 12 GB/month. Avoid using a month dominated by a one-time cleanup or unusually large install when you want a representative estimate.
Phone256 GB198 GB used · +12 GB/month · about 4.8 months left
Laptop512 GB378 GB used · +18 GB/month · about 7.4 months left
Photo archive2 TB1.46 TB used · +55 GB/month · about 9.8 months left
Worth knowing
How accurate is the full date?
It is as good as your growth estimate. If your storage use is fairly steady, it is useful for planning. If it jumps around a lot, treat the result as a rough runway.
Can I mix GB and TB?
Yes. Choose the unit beside each field. Phones, drives, and cloud plans all work.
Do you save my storage information?
No. The calculation happens in your browser. This tool does not send or save the numbers you enter.
What does “growth per month” mean?
It is the average amount your used storage increases in a month. A simple estimate is today's used storage minus what you were using about one month ago.
What if my storage use changes a lot?
Use a representative monthly average and treat the result as a planning range. Large installs, backups, photo imports, or cleanups can move the full date substantially.