How long does Genesis say Noah was when the floodwaters came upon the earth?

Genesis says Noah was 600 years old when the floodwaters came upon the earth.

Genesis 7:6 gives Noah's age as 600 years when the flood occurred. The same chapter later records that Noah lived 350 years after the flood and died at the age of 950, according to Genesis 9:28–29.

The age belongs to the chronology of the biblical narrative, which presents extremely long lifespans for several figures in the generations before and after the flood. These numbers are part of the text's genealogical and narrative framework.

A frequent error is to use Noah's age of 500, mentioned earlier in Genesis 5:32 when his sons are introduced. That is the age associated with the birth-period description, not the flood itself. The flood account specifically places Noah at 600.