Distance between cities › USA › Virginia › Onemo, VA › Distance from Onemo to Cornwall Book Hotels

Distance from Onemo, VA to Cornwall, PA

Distance

277 mi

Time

6 hours 28 mins

Gas Cost

$26 - $50

There are 198.98 miles from Onemo to Cornwall in north direction and 277 miles (445.79 kilometers) by car, following the I-83 route.

Onemo and Cornwall are 6 hours 28 mins far apart, if you drive non-stop .

This is the fastest route from Onemo, VA to Cornwall, PA. The halfway point is Upper Marlboro, MD.

Onemo, VA and Cornwall, PA are in the same time zone (EDT). Current time in both locations is 2:58 pm.

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Lowest Price Rental Cars in Onemo, VA

Planning on renting a car to go from Onemo, VA to Cornwall, PA? Here there are some offers to rent a car in Onemo, VA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Onemo »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 11.12 gallons of gas to cover the route between Onemo, VA and Cornwall, PA.

The estimated cost of gas to go from Onemo to Cornwall is $36.27.

During the route, an average car will release 217.83 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Onemo, VA and Cornwall, PA

If you want to meet halfway between Onemo, VA and Cornwall, PA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.804401 and -76.745537, or 38º 48' 15.8436" N, 76º 44' 43.9332" W. This location is 138.42 miles away from Onemo, VA and Cornwall, PA and it would take approximately 3 hours 14 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Upper Marlboro, MD, situated 146 miles from Onemo, VA and 143 miles from Cornwall, PA. It would take 3 hours 1 min to go from Onemo to Upper Marlboro and 2 hours 29 mins to go from Cornwall to Upper Marlboro.

Major City Closest to Halfway Point

The major city closest to the halfway point between Onemo, VA and Cornwall, PA is Washington, DC, situated 152 miles from Onemo, VA and 139 miles from Cornwall, PA. It would take 3 hours 12 mins to go from Onemo to and 2 hours 30 mins to go from Cornwall to Washington.