How heavier is a pig?

You need to give me more information! "Heavier" than what?

To answer your question, tell me:

* What are you comparing the pig to? (Another animal? A person? A car?)

* How much does the other thing weigh?

For example, you could ask:

* "How much heavier is a pig than a dog?"

* "How much heavier is a pig than a 10-year-old child?"

* "How much heavier is a pig than a 50-pound bag of potatoes?"

Once you give me more context, I can help you figure out the difference in weight!