Travel time by mode
Real road routing between Isumi and Sanmu.
| Mode | Distance | Time |
|---|---|---|
| 🚗 Car | 51 km | 55min |
| 🚲 Bike | 51 km | 3h 23min |
| 🚶 On foot | 51 km | 10h 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 Isumi (Chiba) to Sanmu (Chiba) is 44 km in a straight line, or 51 km by road. A car trip takes about 55min for an estimated fuel cost of around ¥750. The full driving directions are shown below.
Driving directions · Isumi → Sanmu
- ↑Continue
- ↖Turn slight left
- ↗Turn slight right
- ←Turn left onto 小浜街道175
- →Turn right
- ↖Turn slight left
- →Turn right onto 外房黒潮ライン128
- ←Turn left onto 一宮椎木長者線152
- →Turn right onto 一宮椎木長者線152
- →Turn right onto 一宮椎木長者線152
- ←Turn left onto 房総横断道路128, 465
- →Turn right
- ↱Keep right onto 能登路
- ↑Continue
- →Turn right onto 正気茂原線138
- ↱Turn sharp right onto 山田台大網白里線83
- ←Turn left onto 正気茂原線138
- ←Turn left onto 東金豊海線75
- →Turn right onto 国道126号126
- ↑Continue onto 国道126号126
- ←Turn left onto 成東山武線118
- →Turn right
- ←Turn left
- ←Turn left
- →Turn right
- ↗Turn slight right
- ←Turn left
- →Turn right
- →Turn right
- 🏁Arrive at destination
Roadside stations (michi-no-eki) along the route
Rest stops with local food and products near this itinerary.
みのりの郷東金千葉県
Source: MLIT — National Land Numerical Information (P35, 2018)
Distances from Isumi
Distances from Sanmu
Frequently asked questions
How far is it from Isumi to Sanmu?
About 51 km by road (44 km in a straight line).
How long does it take to drive from Isumi to Sanmu?
About 55min by car under normal conditions.
How much fuel does the trip cost?
Roughly ¥750 one way (≈8.3 L/100 km at ¥179/L).