Distance between cities › USA › California › Lathrop, CA › Distance from Lathrop to Roy Book Hotels

Distance from Lathrop, CA to Roy, MT

Distance

1,194 mi

Time

22 hours 16 mins

Gas Cost

$111 - $216

There are 905.92 miles from Lathrop to Roy in northeast direction and 1,194 miles (1,921.56 kilometers) by car, following the I-80 route.

Lathrop and Roy are 22 hours 16 mins far apart, if you drive non-stop .

This is the fastest route from Lathrop, CA to Roy, MT. The halfway point is Rogerson, ID.

Please note the time difference between Lathrop, CA and Roy, MT is 1 hour. The current time in Lathrop is 4:24 pm and the current time in Roy is 5:24 pm.

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Lowest Price Rental Cars in Lathrop, CA

Planning on renting a car to go from Lathrop, CA to Roy, MT? Here there are some offers to rent a car in Lathrop, CA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Lathrop »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 47.96 gallons of gas to cover the route between Lathrop, CA and Roy, MT.

The estimated cost of gas to go from Lathrop to Roy is $156.43.

During the route, an average car will release 939.56 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 Lathrop, CA and Roy, MT

If you want to meet halfway between Lathrop, CA and Roy, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.129353 and -114.682426, or 42º 7' 45.6708" N, 114º 40' 56.7336" W. This location is 597.06 miles away from Lathrop, CA and Roy, MT and it would take approximately 11 hours 8 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rogerson, ID, situated 613 miles from Lathrop, CA and 589 miles from Roy, MT. It would take 9 hours 38 mins to go from Lathrop to Rogerson and 10 hours 50 mins to go from Roy to Rogerson.