That's correct! The average adult human brain weighs approximately 1.3 to 1.4 kilograms (or about 2.8 to 3 pounds). Here are a few additional interesting facts about the human brain:

1. Size: The brain is about the size of two fists placed together.

2. Composition: About 75-80% of the brain's weight comes from water.

3. Neurons: It contains around 86 billion neurons (nerve cells).

4. Folding: The brain's surface area is increased by folds called gyri and sulci.

5. Energy consumption: Despite its relatively small size, the brain uses about 20% of the body's total energy.

6. Development: The brain reaches its maximum size around age 25-30.

7. Protection: It's encased in three layers of protective membrane called meninges, and cushioned by cerebrospinal fluid.

These characteristics make the human brain one of the most complex and fascinating organs in the body.