Distance between cities › USA › Maryland › McHenry, MD › Distance from McHenry to Baltimore–Washington International Airport Book Hotels

Distance from McHenry, MD to BWI Airport

Distance

183 mi

Time

3 hours 34 mins

Gas Cost

$18 - $36

Helpful Inaccurate

There are 145.26 miles from McHenry to Baltimore–Washington International Airport (BWI) in east direction and 183 miles (294.51 kilometers) by car, following the I-68 and US-40 and US-219 route.

McHenry and BWI Airport are 3 hours 34 mins far apart, if you drive non-stop .

This is the fastest route from McHenry, MD to BWI Airport. The halfway point is Big Pool, MD.

McHenry, MD and BWI Airport are in the same time zone (EDT). Current time in both locations is 8:37 am.

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Lowest Price Rental Cars in McHenry, MD

Planning on renting a car to go from McHenry, MD to BWI Airport? Here there are some offers to rent a car in McHenry, MD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in McHenry »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 7.33 gallons of gas to cover the route between McHenry, MD and BWI Airport.

The estimated cost of gas to go from McHenry to BWI Airport is $25.80.

During the route, an average car will release 143.68 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 $3.52 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between McHenry, MD and BWI Airport

If you want to meet halfway between McHenry, MD and BWI Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.630634 and -78.018959, or 39º 37' 50.2824" N, 78º 1' 8.2524" W. This location is 91.30 miles away from McHenry, MD and BWI Airport and it would take approximately 1 hour 47 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Big Pool, MD, situated 92 miles from McHenry, MD and 91 miles from BWI Airport. It would take 1 hour 33 mins to go from McHenry to Big Pool and 1 hour 25 mins to go from BWI to Big Pool.