How to Tell the Difference Between Mice & Rats

House Mouse vs. Rat Identification

Mice

  • Size: House mice measure 12 to 20 cm in length, including the tail, and weigh 12 to 30 grams.

  • Color: They may be white, brown or grey in color.

  • Head: Their snouts are triangular and feature long whiskers.

  • Tails: Mice have large, floppy ears and long, thin, hairy tails.

These rodents can be found throughout the world in a variety of climates and environments. They can live up to six years in captivity though most naturally live less than a year. Mice are nocturnal, timid, social and territorial in nature. Read all about mice.

House Mouse

Rats

  • Size: Rats are medium-sized to large rodents. However, rats may grow to be as long as 40 cm or more and weigh considerably more than mice.

  • Color: Their coats are white, gray, brown or black in color and are often soiled enough to leave grease marks on touched surfaces.

  • Head: The snout of the rat is more blunt than that of the mouse.

  • Tails: Long tails that are commonly hairless and scaly.

Like mice, these rodents are also found throughout the world, in varying environments. They are also nocturnal in nature. Read all about rats.

Roof Rat Illustration

Resources

Dig Deeper on Mice

Black Mice

How do I stop mice from getting inside the house?

Q

I have children and I'm curious how effective your services are for getting rid of mice once and for all.

How much will it cost to get rid of a mouse infestation?

Q

How much does it cost to get rid of an infestation of mice in an apartment? It has already been inspected, but they didn't give me any price quotes.

Does Riddex really work for mice?

Q

Does Riddex really work for mice? How much would it be to tent the house?

I have a dead animal or mouse in my wall

Q

How long will it take to decompose? What can I do about it?

How do I get rid of mice in the house?

Q

How do I get rid of mice in my house and keep them out?

What Can Mice Chew Through?

Types of Rodents

Does brodifacoum and warfrin rat and mouse poison make rodents thirsty?

Q

I've heard that rat and mouse poisons such as brodifacoum and warfrin make these pests thirsty. Thus, the pest will more likely die outside rather inside a house or building. Is this true?

How do I keep mice out of my RV or camper?

Q

Why are mice attracted to campers? How do I mouse proof a camper?

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