Driving Time from Decatur to Memphis
Driving from Decatur to Memphis is about 402 mi and takes roughly 6 hr 49 min. See the fuel-cost estimate, distance and route tips.
Decatur and Memphis are about 330 mi (530 km) apart in a straight line. By road that works out to roughly 402 mi (647 km), a drive of about 6 hr 49 min. A nonstop flight covers the great-circle distance in approximately 1 hr 6 min.
| Straight-line distance | 330 mi / 530 km |
| Road distance (est.) | 402 mi / 647 km |
| Driving time (est.) | 6 hr 49 min |
| Nonstop flight (est.) | 1 hr 6 min |
| Driving fuel (est., 1-way) | $50 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 37.496, -89.519 |
How these estimates work
Straight-line distance uses the haversine formula on each city's coordinates. Road distance applies a circuity factor (~1.2–1.4×) and driving time a blended average speed. Flight time uses typical jet cruise speed plus ~30 minutes for taxi, climb and descent. Treat all figures as planning estimates.
Frequently asked questions
Decatur to Memphis is about 330 mi (530 km) in a straight line, and roughly 402 mi (647 km) by road.