Urinary System


How big is a human kidney?

The human kidney is about the size of a human fist and weighs about 5 ounces (150 grams). Its average dimensions are 5 inches (12 centimeters) long, 3 inches (6 centimeters) wide, and 1 inch (2.5 centimeters) thick.


This is a web preview of the "The Handy Anatomy Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App