How many miles between Amarillo TX and Springfield Mo?

543 miles taking this route:

1. Take I-40 EAST, from Amarillo, to the KILPATRICK TURNPIKE (toll) off EXIT 139 in Oklahoma.
2. Take the KILPATRICK TURNPIKE (toll), around Oklahoma City, to I-44 (turnpike) EAST to TULSA.
3. Take I-44 EAST to the CREEK TURNPIKE (toll) off EXIT 218.
4. Take the CREEK TURNPIKE, around Tulsa, to I-44 (turnpike) EAST.
5. Continue on I-44 EAST to Springfield.