SSD Lifespan Calculator – TBW and Endurance
Calculate estimated SSD lifespan from TBW rating and daily write usage.
About This Calculator
Calculate estimated SSD lifespan from TBW rating and daily write usage. Use the calculator above for instant results.
Worked Examples
- 600 × 1024 / 30 = 20,480 days = 56 years
- Far exceeds warranty period
Answer: 56 years — excellent
- 150 × 1024 / 100 = 1,536 days = 4.2 years
Answer: 4.2 years
- 800 × 1024 / 200 = 4,096 days = 11.2 years
Answer: 11.2 years
Who Uses This Calculator?
Evaluate SSD endurance for workload.
SSD selection for write-heavy workloads.
Monitor and plan SSD replacement.
Endurance planning for data center SSDs.
Common Mistakes to Avoid
❌ TBW exceeds realistic wear-out
Most users never approach TBW limits. SSDs usually fail from other causes (controller, firmware) before NAND wear.
❌ Monitor with SMART
Use CrystalDiskInfo (Windows) or smartctl (Linux) to monitor SSD wear level and health in real time.
Frequently Asked Questions
What is TBW?
Terabytes Written — manufacturer's endurance rating for total NAND writes before expected wear out. Backed by warranty.
How much do I write per day?
Use CrystalDiskInfo or smartctl to check total bytes written divided by days of use. Most desktop users: 5-30 GB/day.
SSD vs HDD longevity?
SSDs have no mechanical failure modes but finite write cycles. Quality SSDs now outlast HDDs in most scenarios.