How far is McKinney, TX from Round Rock, TX?
The driving distance from McKinney, TX to Round Rock, TX is about 209.6 miles (337.3 km), with a travel time of about 03h 43m by car.
- The straight-line flight distance is about 196 miles (315.5 km).
- For a round trip, plan for roughly 07h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 43m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between McKinney and Round Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between McKinney and Round Rock.
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1
Start on North Tennessee Street
36 m · 12 sec · North Tennessee Street
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2
Turn left onto East Virginia Street
1.4 mi · 3 min · East Virginia Street
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3
Turn left onto South Central Expressway
3105 ft · 53 sec · South Central Expressway
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4
Take the ramp slight left toward US 75 South, TX 121 South
1722 ft · 42 sec
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5
Merge slight left onto Central Expressway
29.2 mi · 31 min · Central Expressway
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6
Take the exit slight left toward Downtown, Good-Latimer Expressway
153 m · 12 sec
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7
Continue on North Central Expressway
1.2 km · 1 min · North Central Expressway
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8
Turn right onto Elm Street
93 m · 11 sec · Elm Street
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9
Turn left onto North Pearl Expressway
1086 ft · 29 sec · North Pearl Expressway
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10
Turn right onto Young Street
572 ft · 20 sec · Young Street
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11
Turn left onto South Harwood Street
96 m · 8 sec · South Harwood Street
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12
Turn right onto Canton Street
2105 ft · 48 sec · Canton Street
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13
Take the ramp slight left toward I 30 West
1773 ft · 38 sec
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14
Keep slight left to continue on I 35E South, I 35E North: Waco, Denton
607 ft · 15 sec
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15
Keep slight left to continue on I 35E North, I 35E South: Denton, Waco
67 m · 5 sec
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16
Keep slight left to continue on I 35E South: Waco
1915 ft · 30 sec
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17
Continue on South R L Thornton Freeway
2866 ft · 44 sec · South R L Thornton Freeway
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18
Continue on South R L Thornton Freeway
89.3 mi · 1 hr 32 min · South R L Thornton Freeway
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19
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
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20
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
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21
Keep slight left
40.2 mi · 41 min
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22
Take the exit slight right toward RM 620: McNeil Road
1111 ft · 27 sec
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23
Turn straight onto North Interstate 35
1387 ft · 21 sec · North Interstate 35
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24
Turn left onto Round Rock Avenue
2128 ft · 53 sec · Round Rock Avenue
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25
Enter the roundabout and take exit 1 toward North Blair Street
13 m · 1 sec · North Blair Street
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26
Exit the roundabout onto North Blair Street
58 m · 10 sec · North Blair Street
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27
Turn left onto West Main Street
107 m · 16 sec · West Main Street
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28
Turn right onto South Mays Street
33 m · 3 sec · South Mays Street
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29
Arrive at your destination
0 m · 1 sec · South Mays Street
Car Route Details
A richer read on the saved driving route between McKinney and Round Rock.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
South R L Thornton Freeway
Continue on South R L Thornton Freeway
89.3 mi · 01h 32m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Showers And Thunderstorms leaving McKinney and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Round Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from McKinney to Round Rock?
The road trip is about 209.6 miles (337.3 km) and usually takes 03h 43m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Abbott is a useful midpoint, sitting about 105 miles from McKinney and 104.6 miles from Round Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 196 miles (315.5 km), while the road route adds roughly 13.6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 9:32 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.96 one way or $55.93 round trip. Estimated CO2 is about 65.8 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around McKinney and Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms near Round Rock.
Stop Ideas Near Abbott
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Historic City Hall
West City Hall
Town Hall Estates Hillsboro
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Abbott.
Waco, TX
Cleburne
McGregor
Temple
Flight Path Map
This map shows the direct air route between McKinney and Round Rock. Straight-line distance: 196.02 mi (315.46 km).
#1 McKinney
The third most populous city in Collin County, Texas.
| Population | 208,272 |
| Coordinates | 33.1976200, -96.6152700 |
| Altitude | 192 |
| Country | United States |
#2 Round Rock
The fourth most populous city in Williamson County, Texas.
| Population | 137,575 |
| Coordinates | 30.5082600, -97.6789000 |
| Altitude | 224 |
| Country | United States |
End: Round Rock (-97.6789, 30.50826)
Estimated Travel Time
Distance: 337 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 59m |
| 40 mph (64.37 km/h) | 05h 14m |
| 50 mph (80.47 km/h) | 04h 11m |
| 60 mph (96.56 km/h) | 03h 29m |
| 70 mph (112.65 km/h) | 02h 59m |
| 80 mph (129 km/h) | 02h 36m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $27.96 | $55.93 |
| Mid-grade | $4.25 | $31.46 | $62.93 |
| Premium | $4.59 | $33.97 | $67.95 |
| Diesel | $3.99 | $29.55 | $59.10 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.