An average adult human heart weighs between 0.5 to 0.8 pounds (230 to 350 grams), serving as a remarkably lightweight yet powerful engine that circulates nearly 2,000 gallons of blood daily. A healthy adult human heart typically weighs between 230 and 350 grams (8 to 12 ounces). While individual mass varies based on sex, age, and physical stature, the heart generally maintains a weight proportional to the body’s total circulatory demands. For an average adult, the heart typically weighs between 250 and 350 grams (about 9 to 12 ounces). This weight can vary depending on several factors such as gender, body size, age, and overall health. Men generally have heavier hearts than women. The heart averages around 365 grams in males and 312 grams in females. This mass is subject to considerable variation, with recorded weights spanning from as low as 90 grams up to 630 grams in healthy adults. The mass of a human heart is between 200–450 g, however approximately 300 g. However, this number can be extremely varied when the heart is diseased. A diseased heart can sometimes weigh as much as 1000 g; more than two pounds! On average, an adult’s heart weighs about 10 ounces (280-340 grams) in men and between 8-10 ounces (230-280 grams) in women. Your heart may weigh a little more or a little less, depending on your body size and sex. The average adult human heart weighs between 250 and 350 grams, which is about 9 to 12 ounces. This range varies depending on factors like age, sex, body size, and overall health. Most internal organs are surprisingly light. Your brain weighs roughly 1,300 grams (about 3 pounds), your liver comes in around 1,300 to 1,500 grams, and your heart sits at roughly 270 to 310 grams, or about the weight of a can of soup. The average human heart weighs between 250 to 350 grams (about 9 to 12 ounces). That’s roughly the weight of a large apple or a small grapefruit. But that number isn’t the same for everyone. The weight of the heart can change based on age, sex, body size, fitness level, and even health conditions. An average adult human heart weighs between 230 and 340 grams (8 to 12 ounces), typically measuring the size of a large clenched fist. While heart mass varies based on gender, age, and physical conditioning, this relatively small muscular organ is responsible for pumping approximately 2,000 gallons of blood through the body every single day.