How far is Union, OH from Hamilton, OH?
The driving distance from Union, OH to Hamilton, OH is about 46.5 miles (74.8 km), with a travel time of about 01h 04m by car.
- The straight-line flight distance is about 37 miles (59.6 km).
- For a round trip, plan for roughly 02h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 04m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Delaware County, Ohio, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Union and Hamilton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union and Hamilton.
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1
Start on North Main Street
1.4 mi · 2 min · North Main Street
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2
Turn right onto National Road
2675 ft · 49 sec · National Road
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3
Turn left onto Union Boulevard
2885 ft · 58 sec · Union Boulevard
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4
Continue on Union Road
1.9 mi · 3 min · Union Road
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5
Turn left onto Salem Avenue
2 mi · 3 min · Salem Avenue
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6
Turn right
67 m · 3 sec
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7
Continue on Northwest Connector
5.2 mi · 7 min · Northwest Connector
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8
Continue on C.J Mclin Jr. Expressway
1.2 km · 1 min · C.J Mclin Jr. Expressway
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9
Turn right onto Infirmary Road
2.1 mi · 5 min · Infirmary Road
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10
Turn right onto Germantown Street
4.3 mi · 6 min · Germantown Street
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11
Continue on Dayton Germantown Pike
2.3 mi · 3 min · Dayton Germantown Pike
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12
Continue straight
7.7 mi · 12 min
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13
Turn right onto North Verity Parkway
1.1 mi · 2 min · North Verity Parkway
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14
Continue on North Canal Street
1621 ft · 33 sec · North Canal Street
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15
Continue on South Verity Parkway
2.1 mi · 3 min · South Verity Parkway
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16
Continue on Hamilton Middletown Road
9.5 mi · 12 min · Hamilton Middletown Road
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17
Continue on Fairgrove Avenue
3235 ft · 44 sec · Fairgrove Avenue
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18
Continue on North Erie Boulevard
3253 ft · 51 sec · North Erie Boulevard
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19
Turn right onto High Street
1.2 km · 1 min · High Street
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20
Continue on High Street
69 m · 15 sec · High Street
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21
Arrive at your destination
0 m · 1 sec · High Street
Car Route Details
A richer read on the saved driving route between Union and Hamilton.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Hamilton Middletown Road
Continue on Hamilton Middletown Road
9.54 mi · 00h 12m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Chance Showers And Thunderstorms leaving Union and Chance Showers And Thunderstorms near Hamilton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union to Hamilton?
The road trip is about 46.5 miles (74.8 km) and usually takes 01h 04m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Sunbury is a useful midpoint, sitting about 22 miles from Union and 24.5 miles from Hamilton.
How much longer is the road route than the straight-line distance?
The direct path is about 37 miles (59.6 km), while the road route adds roughly 9.5 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.08 one way or $12.15 round trip. Estimated CO2 is about 14.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Union and Chance Showers And Thunderstorms near Hamilton.
Stop Ideas Near Sunbury
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 Sunbury.
Cincinnati, OH
Cincinnati Museum Center at Union Terminal
Connersville station
Maysville
Flight Path Map
This map shows the direct air route between Union and Hamilton. Straight-line distance: 37.01 mi (59.56 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 Hamilton
The most populous city in Butler County, Ohio.
| Population | 62,148 |
| Coordinates | 39.3995000, -84.5613400 |
| Altitude | 181 |
| Country | United States |
End: High Street (-84.56131, 39.399555)
Estimated Travel Time
Distance: 75 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 32m |
| 40 mph (64.37 km/h) | 01h 09m |
| 50 mph (80.47 km/h) | 00h 55m |
| 60 mph (96.56 km/h) | 00h 46m |
| 70 mph (112.65 km/h) | 00h 39m |
| 80 mph (129 km/h) | 00h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $6.08 | $12.15 |
| Mid-grade | $4.24 | $6.96 | $13.91 |
| Premium | $4.79 | $7.86 | $15.71 |
| Diesel | $4.30 | $7.06 | $14.12 |
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 · Apr 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.