Travel time by mode
Real road routing between Iwakuni and Osaka.
| Mode | Distance | Time |
|---|---|---|
| 🚗 Car | 370 km | 4h 21min |
| 🚲 Bike | 370 km | 24h 41min |
| 🚶 On foot | 353 km | 73h 27min |
Road distance, driving time and the route below are computed by our routing engine. Fuel cost assumes ~8.3 L/100 km at ¥179/L (regular gasoline, e-Stat national average 2025).
About this route
The distance from Iwakuni (Yamaguchi) to Osaka (Ōsaka) is 307 km in a straight line, or 370 km by road. A car trip takes about 4h 21min for an estimated fuel cost of around ¥5,500. The full driving directions are shown below. Summers are hot (warmest month around 28.2°C); spring and autumn are the most comfortable seasons for this drive.
Driving directions · Iwakuni → Osaka
- ↑Continue
- ←Turn left onto 国道188号188, 189
- ↰Keep left
- ↱Keep right
- ↰Keep left onto 山陽自動車道E2
- ↱Keep right onto 神戸JCTE2
- ↰Keep left and drive toward 池田, 豊中, 大阪空港
- ↰Keep left
- ↑Continue onto 大阪池田線10
- ↱Keep right onto 大阪池田線10
- ↱Keep right onto 1111
- ↰Keep left onto 1111
- ↰Keep left onto 大阪池田線10
- ←Turn left onto 名神栄町線
- ↱Keep right onto 名神栄町線
- →Turn right onto 名神栄町線
- →Turn right onto 阪急西側南線
- ←Turn left onto 庄本牛立線152
- →Turn right onto 国道176号176
- ←Turn left onto 国道176号176
- ↖Turn slight left onto 御堂筋25, 26, 165
- ←Turn left onto 中之島通
- 🏁Arrive at destination
Roadside stations (michi-no-eki) along the route
Rest stops with local food and products near this itinerary.
Source: MLIT — National Land Numerical Information (P35, 2018)
Distances from Iwakuni
Distances from Osaka
Frequently asked questions
How far is it from Iwakuni to Osaka?
About 370 km by road (307 km in a straight line).
How long does it take to drive from Iwakuni to Osaka?
About 4h 21min by car under normal conditions.
How much fuel does the trip cost?
Roughly ¥5,500 one way (≈8.3 L/100 km at ¥179/L).