Distance between cities › USA › Missouri › Union, MO › Distance from Union to Gray Summit Book Hotels

Distance from Union, MO to Gray Summit, MO

Distance

13 mi

Time

18 minutes

Gas Cost

$1 - $2

There are 10.73 miles from Union to Gray Summit in northeast direction and 13 miles (20.92 kilometers) by car, following the US-50 route.

Union and Gray Summit are 18 minutes far apart, if you drive non-stop .

This is the fastest route from Union, MO to Gray Summit, MO.

Union, MO and Gray Summit, MO are in the same time zone (CDT). Current time in both locations is 9:37 am.

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Lowest Price Rental Cars in Union, MO

Planning on renting a car to go from Union, MO to Gray Summit, MO? Here there are some offers to rent a car in Union, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Union »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 0.51 gallons of gas to cover the route between Union, MO and Gray Summit, MO.

The estimated cost of gas to go from Union to Gray Summit is $1.58.

During the route, an average car will release 10 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 $3.09 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Union, MO and Gray Summit, MO

If you want to meet halfway between Union, MO and Gray Summit, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.439445 and -90.908783, or 38º 26' 22.002" N, 90º 54' 31.6188" W. This location is 6.35 miles away from Union, MO and Gray Summit, MO and it would take approximately 9 minutes to reach the halfway point from both locations.