JapanRoutesSignposts of Japan
English日本語 Travel Japan,
more deeply.
Japan › Shimonoseki › Shimonoseki → Iwakuni

Shimonoseki → Iwakuni

Yamaguchi → Yamaguchi
Straight line119 km
By road271 km
Driving time31h 47min
Fuel cost¥4,020
Plan another route
Type a city name and pick it from the list

Travel time by mode

Real road routing between Shimonoseki and Iwakuni.

ModeDistanceTime
🚗 Car271 km31h 47min
🚲 Bike271 km18h 2min
🚶 On foot137 km28h 35min

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 Shimonoseki (Yamaguchi) to Iwakuni (Yamaguchi) is 119 km in a straight line, or 271 km by road. A car trip takes about 31h 47min for an estimated fuel cost of around ¥4,020. The full driving directions are shown below. Spring and autumn offer the most comfortable driving conditions.

⇄ Return route: Iwakuni → Shimonoseki →

Driving directions · Shimonoseki → Iwakuni

  1. ↑Continue onto 松山小倉フェリー（松山―小倉）174.6 km29h 6min
  2. ↗Turn slight right217 m1min
  3. ↱Keep right19 m0min
  4. ↗Turn slight right onto 松山港内宮線39114 m0min
  5. ←Turn left onto 松山港線192.3 km4min
  6. →Turn right onto 辰巳伊予和気停車場線183526 m1min
  7. ←Turn left onto 松山港線19402 m0min
  8. →Turn right onto 松山東部環状線4026 m0min
  9. →Turn right onto 松山東部環状線40523 m0min
  10. →Turn right onto 松山東部環状線40225 m0min
  11. →Turn right onto 国道437号437213 m0min
  12. ↱Turn sharp right11 m0min
  13. ↖Turn slight left47 m0min
  14. ↰Keep left onto オレンジライン(柳井-伊保田-三津浜)28.0 km1h 33min
  15. ↖Turn slight left48 m0min
  16. →Turn right onto 油田港線35136.1 km31min
  17. →Turn right onto 国道437号4371.3 km1min
  18. →Turn right onto 国道437号437577 m0min
  19. →Turn right236 m0min
  20. ←Turn left onto 国道188号18817.2 km19min
  21. ↰Keep left232 m0min
  22. ↗Turn slight right onto 上久原藤生停車場線136484 m0min
  23. ←Turn left onto 国道188号188458 m1min
  24. ←Turn left onto 藤生停車場錦帯橋線112507 m1min
  25. →Turn right onto 国道188号1884.7 km4min
  26. ↱Turn sharp right onto 岩国玖珂線15848 m1min
  27. ↱Turn sharp right221 m0min
  28. ←Turn left377 m1min
  29. 🏁Arrive at destination0 m0min

Roadside stations (michi-no-eki) along the route

Rest stops with local food and products near this itinerary.

サザンセトとうわ山口県

Source: MLIT — National Land Numerical Information (P35, 2018)

Distances from Shimonoseki

Ube Ube28 kmYamaguchi Yamaguchi54 kmHōfu Hōfu58 kmTokuyama Tokuyama81 kmKudamatsu Kudamatsu85 kmHikari Hikari92 kmOnoda Onoda22 kmHagi Hagi66 kmYanai Yanai108 kmOgōri-shimogō Ogōri-shimogō45 kmNagato Nagato53 kmShimonoseki Shimonoseki25 kmMine Mine36 kmSanyōonoda Sanyōonoda21 kmShūnan Shūnan82 km

Distances from Iwakuni

Yanai Yanai24 kmHikari Hikari34 kmKudamatsu Kudamatsu37 kmShūnan Shūnan37 kmTokuyama Tokuyama39 kmHōfu Hōfu62 kmYamaguchi Yamaguchi69 kmOgōri-shimogō Ogōri-shimogō76 kmHagi Hagi78 kmMine Mine92 kmUbe Ube93 kmNagato Nagato97 kmOnoda Onoda97 kmSanyōonoda Sanyōonoda99 kmShimonoseki Shimonoseki112 km

Frequently asked questions

How far is it from Shimonoseki to Iwakuni?

About 271 km by road (119 km in a straight line).

How long does it take to drive from Shimonoseki to Iwakuni?

About 31h 47min by car under normal conditions.

How much fuel does the trip cost?

Roughly ¥4,020 one way (≈8.3 L/100 km at ¥179/L).