HomeClinical Pathology Life span of red blood cells in the circulation (body).. 120 day Life span of red blood cells in the circulation (body): 1- 80 days 2- 120 day*** 3- 130 day 4- 20 day 5- 7 days. Facebook Twitter Share:Life span of red blood cells in the circulation (body).. 120 day Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email