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SESK: Stuff Everyone Should Know · sesk.info/cat-microchip-size

About how big is a pet microchip, according to the AVMA?

About the size of a large grain of rice.

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  1. A large grain of rice ✔
  2. A golf ball
  3. A postage stamp

Why: The chip is tiny and goes under the skin, typically between the shoulder blades in the U.S. Unlike a collar, it cannot fall off.

Huh, didn't know that: iCatCare says microchipping is a legal requirement for all cats over 20 weeks old in England.

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References

Answer: A large grain of rice. The chip is tiny and goes under the skin, typically between the shoulder blades in the U.S. Unlike a collar, it cannot fall off.

  1. AVMA, Microchips www.avma.org/resources-tools/pet-owners/petcare/microchips-reunite-pets-families
    about the size of a large grain of rice
    Checked 2026-10-11.
  2. iCatCare, Should my cat wear a collar? icatcare.org/articles/should-my-cat-wear-a-collar
    a legal requirement for all cats over the age of 20 weeks in England
    Checked 2026-10-11.

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