How far is Round Rock, TX from McKinney, TX?
The driving distance from Round Rock, TX to McKinney, TX is about 209.8 miles (337.6 km), with a travel time of about 03h 11m by car.
- The straight-line flight distance is about 196 miles (315.5 km).
- For a round trip, plan for roughly 06h 23m 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 11m.
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.
City in Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Round Rock and McKinney.
Turn-by-Turn Driving Directions
Step-by-step road directions between Round Rock and McKinney.
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1
Start on South Mays Street
142 m · 19 sec · South Mays Street
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2
Turn left onto West Liberty Avenue
573 ft · 17 sec · West Liberty Avenue
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3
At the end of the road, turn right onto Round Rock Avenue
1498 ft · 37 sec · Round Rock Avenue
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4
Turn right onto North Interstate 35
1544 ft · 24 sec · North Interstate 35
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5
Take the ramp slight left toward I 35 North
1143 ft · 28 sec
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6
Merge slight left onto Purple Heart Trail
78.1 mi · 1 hr 20 min · Purple Heart Trail
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7
Continue on South Jack Kultgen Expressway
6.6 mi · 8 min · South Jack Kultgen Expressway
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8
Continue on Purple Heart Trail
33 mi · 33 min · Purple Heart Trail
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9
Keep slight right to continue on I 35E: Dallas
56.2 mi · 58 min
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10
Take the exit slight right toward I 30 East: Texarkana, Riverfront Boulevard, Griffin Street
2094 ft · 42 sec
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11
Keep slight left to continue on I 35E North, I 30 West: Denton, Fort Worth, Texarkana
129 m · 6 sec
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12
Keep slight right to continue on I 30 East: Texarkana, Convention Center
2206 ft · 33 sec
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13
Keep slight left to continue on I 30 East: Texarkana
117 m · 6 sec
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14
Continue on East R L Thornton Freeway
1.2 km · 1 min · East R L Thornton Freeway
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15
Take the exit slight right toward I 45, US 75: Houston, McKinney
2421 ft · 46 sec
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16
Keep slight left to continue on US 75 North: McKinney
2512 ft · 1 min
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17
Keep slight right to continue on US 75 North: McKinney, Bryan Street East
1697 ft · 27 sec
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18
Merge slight left onto Julius Schepps Freeway
1.2 km · 49 sec · Julius Schepps Freeway
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19
Continue on North Central Expressway
26.6 mi · 29 min · North Central Expressway
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20
Take the exit slight right toward SRT South, TX 5: Sam Rayburn Tollway
1776 ft · 22 sec
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21
Keep slight right
1.2 km · 1 min
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22
Merge slight left
1.5 km · 1 min
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23
Continue on South McDonald Street
1.6 km · 2 min · South McDonald Street
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24
Turn slight left
86 m · 10 sec
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25
Continue on South Tennessee Street
1.1 mi · 3 min · South Tennessee Street
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26
Arrive at your destination
0 m · 1 sec · North Tennessee Street
Car Route Details
A richer read on the saved driving route between Round Rock and McKinney.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Purple Heart Trail
Merge slight left onto Purple Heart Trail
78.1 mi · 01h 20m
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 then Chance Showers And Thunderstorms leaving Round Rock and Slight Chance Showers And Thunderstorms near McKinney.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Round Rock to McKinney?
The road trip is about 209.8 miles (337.6 km) and usually takes 03h 11m 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 104.9 miles from Round Rock and 104.9 miles from McKinney.
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 13.8 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 10:36 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 then Chance Showers And Thunderstorms around Round Rock and Slight Chance Showers And Thunderstorms near McKinney.
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 Round Rock and McKinney. Straight-line distance: 196.02 mi (315.46 km).
#1 Round Rock
The fourth most populous city in Williamson County, Texas.
| Population | 137,575 |
| Coordinates | 30.5082600, -97.6789000 |
| Altitude | 224 |
| Country | United States |
#2 McKinney
The third most populous city in Collin County, Texas.
| Population | 208,272 |
| Coordinates | 33.1976200, -96.6152700 |
| Altitude | 192 |
| Country | United States |
End: North Tennessee Street (-96.61506, 33.19762)
Estimated Travel Time
Distance: 338 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 37m |
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.