The heart is a muscular organ, comprising cardiac muscle tissue, which contracts repeatedly and rhythmically to pump blood through blood arteries.
In a nutshell, it has been estimated that the heart weighs an average of 236 to 412 g, with a range of 90 to 672 g.
These studies' conclusions are in line with the data collected overall for this study, which indicated an average heart weight of 331 g and a range of 188 to 575 g.
The size of the human heart is equal to the clenched fist.