How far is Union, OH from Colerain, OH?
The driving distance from Union, OH to Colerain, OH is about 200.4 miles (322.5 km), with a travel time of about 03h 15m by car.
- The straight-line flight distance is about 185.7 miles (298.9 km).
- For a round trip, plan for roughly 06h 31m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 15m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in Licking County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Widespread Frost then Sunny
Driving Route Map
The map below follows the saved road route between Union and Colerain.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Colerain.
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1
Start on North Main Street
3.2 mi · 5 min · North Main Street
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2
Take the ramp left toward I 70 East: Columbus
917 ft · 22 sec
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3
Merge slight left
17.5 mi · 20 min
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4
Keep slight left
49.2 mi · 53 min
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5
Keep slight right to continue on West Freeway
3.2 mi · 4 min · West Freeway
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6
Continue on South Innerbelt
1.5 mi · 2 min · South Innerbelt
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7
Keep slight left to continue on South Innerbelt
2008 ft · 31 sec · South Innerbelt
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8
Continue on East Freeway
114 mi · 2 hr 4 min · East Freeway
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9
Take the exit slight right toward US 40: National Road
1178 ft · 30 sec
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10
Turn left onto National Road West
1.5 km · 1 min · National Road West
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11
Continue on West Main Street
1.5 mi · 2 min · West Main Street
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12
Turn left onto Barton Road
3.5 mi · 8 min · Barton Road
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13
Continue on Main Street
736 ft · 25 sec · Main Street
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14
Turn left onto Barton Road
116 m · 12 sec · Barton Road
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15
At the end of the road, turn right onto Barton Crescent Road
54 m · 5 sec · Barton Crescent Road
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16
Continue on Barton Colerain Road
2.3 mi · 6 min · Barton Colerain Road
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17
At the end of the road, turn right onto Colerain Road
1.4 km · 1 min · Colerain Road
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18
Arrive at your destination
0 m · 1 sec · Colerain Road
Car Route Details
A richer read on the saved driving route between Union and Colerain.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
East Freeway
Continue on East Freeway
114 mi · 02h 04m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Widespread Frost leaving Union and Widespread Frost then Sunny near Colerain.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Colerain?
The road trip is about 200.4 miles (322.5 km) and usually takes 03h 15m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Kirkersville is a useful midpoint, sitting about 99.1 miles from Union and 101.2 miles from Colerain.
How much longer is the road route than the straight-line distance?
The direct path is about 185.7 miles (298.9 km), while the road route adds roughly 14.7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:28 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $26.19 one way or $52.39 round trip. Estimated CO2 is about 62.8 kg one way.
What should you check before leaving?
Before you leave, expect Widespread Frost around Union and Widespread Frost then Sunny near Colerain.
Stop Ideas Near Kirkersville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Kirkersville.
Columbus, OH
Flight Path Map
This map shows the direct air route between Union and Colerain. Straight-line distance: 185.75 mi (298.94 km).
#1 Union
City in Montgomery and Miami Counties in the U.
| Population | 6,909 |
| Coordinates | 39.8978300, -84.3063300 |
| Altitude | 281 |
| Country | United States |
#2 Colerain
The most populous city in Hamilton County, Ohio.
| Population | 59,145 |
| Coordinates | 40.1259000, -80.8087000 |
| Altitude | 384 |
| Country | United States |
End: South Colerain Road (-80.808758, 40.125865)
Estimated Travel Time
Distance: 322 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 40m |
| 40 mph (64.37 km/h) | 05h 00m |
| 50 mph (80.47 km/h) | 04h 00m |
| 60 mph (96.56 km/h) | 03h 20m |
| 70 mph (112.65 km/h) | 02h 51m |
| 80 mph (129 km/h) | 02h 29m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $26.19 | $52.39 |
| Mid-grade | $4.24 | $29.99 | $59.98 |
| Premium | $4.79 | $33.87 | $67.73 |
| Diesel | $4.30 | $30.43 | $60.86 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Ohio · May 03, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.