Cat heart Size
Date: Spring 2011
What is the average size of a cat's heart?
That is a good question. The average weight of a cat's heart is about
2.5-3 grams, with male cats having slightly heavier hearts than
females. The larger the cat the larger the heart will be. In other
words, a 20 pound male Maine coon cat will have a larger and heavier
heart than a 10 pound female calico. To give you an idea of how big a
2.5-3 gram heart is, think about something the size of a walnut in its
shell. I hope this answers your question.
Louis m. Huzella, DVM, Diplomate, ACVP
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Update: June 2012