Here's a general idea:
* Average weight: 1.5 to 2.5 pounds (0.7 to 1.1 kilograms)
* Smaller breeds: 1 to 1.5 pounds (0.45 to 0.7 kilograms)
* Larger breeds: 2 to 3 pounds (0.9 to 1.4 kilograms)
It's important to note that these are just estimates. If you're concerned about your guinea pig's weight, it's best to consult with a veterinarian. They can help you determine if your guinea pig is at a healthy weight and advise you on how to adjust its diet or exercise routine if needed.