How much is 1 purva
1 purva is a very large Jain time unit. It is defined as 84,00,000 purvāṅga. Since 1 purvāṅga equals 84,00,000 years, 1 purva = 84,00,000 × 84,00,000 years = 7.056 × 10^13 years (70,560,000,000,000 years). This is the traditional Jain cosmological scale; its exact numerical interpretation remains symbolic in most contexts. In both Śvetāmbara and Digambara traditions, this large-scale unit is used similarly, with minor variant ways of presenting the same idea in texts.