SSD Lifespan (TBW & DWPD)
Estimate how many years an SSD will last from its TBW rating and your daily writes, and convert TBW to DWPD, free online.
About this calculator
The endurance rating TBW (terabytes written) is the total data the SSD is warrantied to absorb. Lifespan = TBW ÷ (daily writes × 365). DWPD (drive writes per day) = TBW ÷ (capacity × warranty years × 365). Typical consumers write 10–40 GB/day, so a 600 TBW drive lasts decades.