The driving distance from Amarillo, Texas to Milwaukee, Wisconsin is approximately 1,040 miles (1,675 kilometers) via the most direct interstate route (typically I-27 N → I-40 E → I-44 E → I-55 N → I-39 N / I-90 E).
Estimated driving time: 15–16 hours without extended stops. Major waypoints: Oklahoma City, Tulsa, St. Louis, Springfield (IL), Rockford, Madison.
Consider breaking the trip into two days for safety and comfort.