How far is Parma, OH from Saint Marys, OH?
The driving distance from Parma, OH to Saint Marys, OH is about 187.8 miles (302.2 km), with a travel time of about 03h 38m by car.
- The straight-line flight distance is about 151.3 miles (243.5 km).
- For a round trip, plan for roughly 07h 17m 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 38m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Parma and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Parma and Saint Marys.
-
1
Start on West 54th Street
14 m · 9 sec · West 54th Street
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2
Turn left onto Snow Road
3235 ft · 1 min · Snow Road
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3
Turn left onto Ridge Road
14.8 mi · 24 min · Ridge Road
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4
Take the ramp right toward I 271 South: Wadsworth
1521 ft · 37 sec
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5
Merge slight left
3.5 mi · 4 min
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6
Merge slight left
43.1 mi · 46 min
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7
Take the exit slight right toward US 30: Wooster, Mansfield
1339 ft · 36 sec
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8
Keep slight left to continue on US 30 West: Mansfield
1983 ft · 38 sec
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9
Merge slight left
7.6 mi · 10 min
-
10
Keep slight left to continue on Martin Luther King Jr. Freeway
37.8 mi · 41 min · Martin Luther King Jr. Freeway
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11
Keep slight right
6.3 mi · 8 min
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12
Keep slight left
34.8 mi · 37 min
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13
Take the exit slight right toward SR 696: Dayton, Toledo
2927 ft · 1 min · US 30 West to East Lincoln Highway
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14
At the end of the road, turn left onto East Lincoln Highway
2371 ft · 54 sec · East Lincoln Highway
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15
Take the exit left
2841 ft · 1 min
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16
Merge slight left
24.1 mi · 26 min
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17
Take the exit slight right toward US 33: Bellefontaine, Saint Marys
784 ft · 22 sec
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18
Keep slight left to continue on US 33 East: Bellefontaine
38 m · 5 sec
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19
Turn right
10.6 mi · 11 min
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20
Take the exit slight right toward SR 66: Saint Marys, Spencerville
555 ft · 14 sec
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21
Keep slight left
1.3 km · 2 min
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22
Turn straight
1.3 km · 2 min
-
23
Turn right onto East Spring Street
1705 ft · 48 sec · East Spring Street
-
24
Turn left onto South Front Street
32 m · 5 sec · South Front Street
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25
Arrive at your destination
0 m · 1 sec · South Front Street
Car Route Details
A richer read on the saved driving route between Parma and Saint Marys.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 271 South
Merge slight left
43.1 mi · 00h 46m
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.
Showers And Thunderstorms Likely leaving Parma and Chance Showers And Thunderstorms then Showers And Thunderstorms near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Parma to Saint Marys?
The road trip is about 187.8 miles (302.2 km) and usually takes 03h 38m 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?
Bucyrus is a useful midpoint, sitting about 93.8 miles from Parma and 94 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 151.3 miles (243.5 km), while the road route adds roughly 36.5 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 9:42 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.56 one way or $49.13 round trip. Estimated CO2 is about 58.9 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Parma and Chance Showers And Thunderstorms then Showers And Thunderstorms near Saint Marys.
Stop Ideas Near Bucyrus
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 Bucyrus.
Sandusky
Columbus, OH
Elyria
Martin Luther King, Jr. Plaza
Flight Path Map
This map shows the direct air route between Parma and Saint Marys. Straight-line distance: 151.32 mi (243.53 km).
#1 Parma
The most populous city in Cuyahoga County, Ohio.
| Population | 77,558 |
| Coordinates | 41.4047700, -81.7229100 |
| Altitude | 264 |
| Country | United States |
#2 Saint Marys
City in Ohio, United States
| Population | 8,113 |
| Coordinates | 40.5422700, -84.3894000 |
| Altitude | 264 |
| Country | United States |
End: Saint Marys (-84.3894, 40.54227)
Estimated Travel Time
Distance: 302 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 15m |
| 40 mph (64.37 km/h) | 04h 41m |
| 50 mph (80.47 km/h) | 03h 45m |
| 60 mph (96.56 km/h) | 03h 07m |
| 70 mph (112.65 km/h) | 02h 40m |
| 80 mph (129 km/h) | 02h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.71 | $24.56 | $49.13 |
| Mid-grade | $4.24 | $28.12 | $56.25 |
| Premium | $4.79 | $31.76 | $63.52 |
| Diesel | $4.30 | $28.54 | $57.07 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.