Distance between cities › USA › Maryland › Poolesville, MD › Distance from Poolesville to Union Book Hotels

Distance from Poolesville, MD to Union, IA

Distance

991 mi

Time

18 hours 36 mins

Gas Cost

$92 - $180

There are 845.86 miles from Poolesville to Union in northwest direction and 991 miles (1,594.86 kilometers) by car, following the I-80 route.

Poolesville and Union are 18 hours 36 mins far apart, if you drive non-stop .

This is the fastest route from Poolesville, MD to Union, IA.

Please note the time difference between Poolesville, MD and Union, IA is 1 hour. The current time in Poolesville is 11:15 am and the current time in Union is 10:15 am.

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Lowest Price Rental Cars in Poolesville, MD

Planning on renting a car to go from Poolesville, MD to Union, IA? Here there are some offers to rent a car in Poolesville, MD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Poolesville »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 39.81 gallons of gas to cover the route between Poolesville, MD and Union, IA.

The estimated cost of gas to go from Poolesville to Union is $129.88.

During the route, an average car will release 780.05 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 Poolesville, MD and Union, IA

If you want to meet halfway between Poolesville, MD and Union, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.66479 and -84.850606, or 41º 39' 53.244" N, 84º 51' 2.1816" W. This location is 495.70 miles away from Poolesville, MD and Union, IA and it would take approximately 9 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Fremont, IN, situated 519 miles from Poolesville, MD and 481 miles from Union, IA. It would take 9 hours 42 mins to go from Poolesville to Fremont and 9 hours 10 mins to go from Union to Fremont.