FREE · NETWORK & IT INFRASTRUCTURE
SSD Endurance Calculator (TBW & DWPD).
Convert SSD endurance between TBW and DWPD and estimate how many years a drive lasts at your daily write volume.
Read it from SMART (data units written) over a few weeks, or from the OS.
- TBW
- 3,504 TB
- DWPD over the warranty
- 1
- Your writes per day
- 300 GB (0.156 DWPD)
- Endurance used per year
- 3.1 %
- Ratings are measured with standard JEDEC workloads (JESD218/219); small random writes wear drives faster than large sequential ones.
- Reaching the rating does not mean immediate failure, but the warranty ends there. Monitor SMART “percentage used”.
How to use SSD Endurance Calculator (TBW & DWPD)
Enter capacity, the rating in DWPD or TBW, the warranty period and the data written per day (from SMART data).
How it works
TBW = DWPD × capacity × 365 × years. Life = TBW ÷ (daily writes × extra write amplification × 365).
Example
A 1.92 TB drive rated 1 DWPD for 5 years = 3,504 TBW; writing 300 GB a day uses it up in 32 years.
Questions about SSD Endurance Calculator (TBW & DWPD)
Is SSD Endurance Calculator (TBW & DWPD) free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Ratings follow JEDEC workloads; your write amplification may differ. Reaching the rating ends the warranty rather than the drive. Everything is calculated in your browser; nothing is sent or probed on the network. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.