* Breed: Different pig breeds have different sizes. Some breeds are known for being smaller, while others are larger.
* Age: Piglets grow quickly. A newborn piglet will be much smaller than a piglet that's a few weeks old.
Here's a general idea:
* Newborn piglets: Can be anywhere from 10-15 inches long.
* Piglets a few weeks old: Might be closer to 18-24 inches long.
If you're looking for more specific information, you'll need to know the piglet's breed and age.