Distance from Taichung to Tainan
How far is it from Taichung to Tainan? About 85 mi in a straight line and 111 mi by road. Driving time, flight time, midpoint and route details.
Taichung and Tainan are about 85 mi (137 km) apart in a straight line. By road that works out to roughly 111 mi (178 km), a drive of about 1 hr 59 min. A nonstop flight covers the great-circle distance in approximately 39 min.
| Straight-line distance | 85 mi / 137 km |
| Road distance (est.) | 111 mi / 178 km |
| Driving time (est.) | 1 hr 59 min |
| Nonstop flight (est.) | 39 min |
| Driving fuel (est., 1-way) | $14 |
| Typical flight fare | $80–$250 |
| Geographic midpoint | 23.569, 120.448 |
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
Taichung to Tainan is about 85 mi (137 km) in a straight line, and roughly 111 mi (178 km) by road.