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Koga → Iwai

Ibaraki → Ibaraki
Straight line22 km
By road25 km
Driving time27min
Fuel cost¥370
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Travel time by mode

Real road routing between Koga and Iwai.

ModeDistanceTime
🚗 Car25 km27min
🚲 Bike25 km1h 40min
🚶 On foot25 km5h 18min

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 Koga (Ibaraki) to Iwai (Ibaraki) is 22 km in a straight line, or 25 km by road. A car trip takes about 27min for an estimated fuel cost of around ¥370. The full driving directions are shown below.

⇄ Return route: Iwai → Koga →

Driving directions · Koga → Iwai

  1. ↑Continue100 m0min
  2. ↱Turn sharp right onto 古河バイパス4, 125730 m1min
  3. ←Turn left onto 国道354号3547.2 km8min
  4. ↑Continue onto 境間々田線1901.7 km2min
  5. ↑Continue onto 国道354号3543.7 km3min
  6. →Turn right onto 国道354号3547.3 km8min
  7. ↑Continue onto 岩井バイパス354712 m1min
  8. →Turn right1.0 km1min
  9. →Turn right onto 中里坂東線125729 m1min
  10. →Turn right onto 結城坂東線208 m0min
  11. ↰Keep left91 m0min
  12. ←Turn left581 m1min
  13. ←Turn left onto 土浦坂東線123585 m1min
  14. ↱Turn sharp right317 m1min
  15. ←Turn left123 m0min
  16. ←Turn left53 m0min
  17. 🏁Arrive at destination0 m0min

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

Rest stops with local food and products near this itinerary.

ごか茨城県
さかい茨城県

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

Distances from Koga

Mito Mito68 kmHitachi Hitachi96 kmTsukuba Tsukuba34 kmHitachi-Naka Hitachi-Naka77 kmKatsuta Katsuta77 kmRyūgasaki Ryūgasaki53 kmToride Toride46 kmUshiku Ushiku45 kmKashima-shi Kashima-shi87 kmShimodate Shimodate27 kmMoriya Moriya38 kmIshioka Ishioka49 kmYūki Yūki20 kmKitaibaraki Kitaibaraki114 kmAmi Ami47 km

Distances from Iwai

Bandō Bandō4 kmJōsō Jōsō6 kmMitsukaidō Mitsukaidō8 kmIshige Ishige10 kmSakai Sakai11 kmTsukubamirai Tsukubamirai12 kmMoriya Moriya16 kmShimo-tsuma Shimo-tsuma16 kmUshiku Ushiku23 kmToride Toride23 kmNaka Naka24 kmFujishiro Fujishiro25 kmTsukuba Tsukuba25 kmAmi Ami27 kmYūki Yūki28 km

Frequently asked questions

How far is it from Koga to Iwai?

About 25 km by road (22 km in a straight line).

How long does it take to drive from Koga to Iwai?

About 27min by car under normal conditions.

How much fuel does the trip cost?

Roughly ¥370 one way (≈8.3 L/100 km at ¥179/L).