According to the Hindu scriptures, Lord Shiva is considered immortal, but his lifespan is finite. The age of Lord Shiva is calculated based on the age of Brahma, which is considered to be 100 "Divine years". One Divine year is equal to 3110400000000 earth years, and one chaturyuga is equal to 43,20,000 years. Therefore, the age of Lord Shiva is 49 times the age of Brahma, which is equivalent to 15240960000000000 earth years or 15 quadrillion 240 trillion 960 billion years in the English numbering system. In the Indian numbering system, it is 15 Padma, 24 Neel, 9 Kharab, 60 Arab years.

As of October 24, 2023, there is no information available on the current age of Lord Shiva.