How old was Gautama Buddha when he died?

Gautama Buddha (c. 563/480 – c. 483/400 BCE), also known as Siddhārtha Gautama Buddha, or simply the Buddha, after the title of Buddha, was a monk (śramaṇa), mendicant, sage, philosopher, teacher and religious leader on whose teachings Buddhism was founded. He is believed to have lived and taught mostly in the northeastern part of ancient India sometime between the 6th and 4th centuries BCE.

According to the Mahaparinibbana Sutta of the Pali canon, at the age of 80, the Buddha announced that he would soon reach parinirvana, or the final deathless state, and abandon his earthly body. After this, the Buddha ate his last meal, which he had received as an offering from a blacksmith named Cunda. Falling violently ill, Buddha instructed his attendant Ānanda to convince Cunda that the meal eaten at his place had nothing to do with his passing. Mettanando and von Hinüber argue that the Buddha died of mesenteric infarction, a symptom of old age, rather than food poisoning.

The precise contents of the Buddha's final meal are not clear, due to variant scriptural traditions and ambiguity over the translation of certain significant terms; the Theravada tradition generally believes that the Buddha was offered some kind of pork, while the Mahayana tradition believes that the Buddha consumed some sort of truffle or other mushroom. These may reflect the different traditional views on Buddhist vegetarianism and the precepts for monks and nuns.