It would take approximately 1 year to walk around the Earth if you walked nonstop at a pace of 3 miles per hour, which is a moderate pace. This is based on the circumference of the Earth, which is approximately 24,901 miles.

However, it is important to note that this calculation assumes a few things:

1. You are able to walk nonstop for 24 hours per day, 7 days per week, and 365 days per year.
2. You are able to walk on all types of terrain, including mountains, deserts, and bodies of water.
3. You are able to secure food, water, and shelter along the way.

In reality, it would be nearly impossible to walk around the Earth in 1 year due to the logistical challenges and physical demands of such a journey.