How far is McKinney, TX from Katy, TX?
The driving distance from McKinney, TX to Katy, TX is about 288.3 miles (463.9 km), with a travel time of about 05h 07m by car.
- The straight-line flight distance is about 240.3 miles (386.7 km).
- For a round trip, plan for roughly 10h 14m 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 05h 07m.
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 Leon County, Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between McKinney and Katy.
Turn-by-Turn Driving Directions
Step-by-step road directions between McKinney and Katy.
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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
Continue on Julius Schepps Freeway
3.4 mi · 4 min · Julius Schepps Freeway
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7
Keep slight left to continue on Julius Schepps Freeway
210.7 mi · 3 hr 37 min · Julius Schepps Freeway
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8
Take the exit slight right toward 99 Toll West: Grand Parkway
1 mi · 2 min
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9
Keep slight left
1266 ft · 31 sec
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10
Merge slight left onto North Grand Parkway West
37.8 mi · 41 min · North Grand Parkway West
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11
Take the exit slight right toward I 10 East, I 10 West: Houston, San Antonio
3149 ft · 1 min
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12
Keep slight right to continue on I 10 West: San Antonio
1.1 km · 1 min
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13
Merge slight left onto Katy Freeway
1.1 km · 43 sec · Katy Freeway
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14
Take the exit slight right toward US 90 West: Katy Mills Boulevard
2779 ft · 1 min
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15
Turn right onto Highway Boulevard
1 mi · 2 min · Highway Boulevard
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16
Arrive at your destination
0 m · 1 sec · Highway Boulevard
Car Route Details
A richer read on the saved driving route between McKinney and Katy.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Julius Schepps Freeway
Keep slight left to continue on Julius Schepps Freeway
211 mi · 03h 37m
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 Chance Showers And Thunderstorms then Showers And Thunderstorms near Katy.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from McKinney to Katy?
The road trip is about 288.3 miles (463.9 km) and usually takes 05h 07m 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?
Buffalo is a useful midpoint, sitting about 144.3 miles from McKinney and 143.9 miles from Katy.
How much longer is the road route than the straight-line distance?
The direct path is about 240.3 miles (386.7 km), while the road route adds roughly 48 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 6:46 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.43 one way or $76.86 round trip. Estimated CO2 is about 90.4 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Showers And Thunderstorms around McKinney and Chance Showers And Thunderstorms then Showers And Thunderstorms near Katy.
Stop Ideas Near Buffalo
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Buffalo.
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Flight Path Map
This map shows the direct air route between McKinney and Katy. Straight-line distance: 240.29 mi (386.71 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 Katy
City in Texas, United States; within the Houston–The Woodlands–Sugar Land metropolitan area
| Population | 23,889 |
| Coordinates | 29.7857900, -95.8244000 |
| Altitude | 42 |
| Country | United States |
End: Katy (-95.8244, 29.78579)
Estimated Travel Time
Distance: 464 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 36m |
| 40 mph (64.37 km/h) | 07h 12m |
| 50 mph (80.47 km/h) | 05h 45m |
| 60 mph (96.56 km/h) | 04h 48m |
| 70 mph (112.65 km/h) | 04h 07m |
| 80 mph (129 km/h) | 03h 35m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $38.43 | $76.86 |
| Mid-grade | $4.25 | $43.24 | $86.49 |
| Premium | $4.59 | $46.69 | $93.38 |
| Diesel | $3.99 | $40.61 | $81.22 |
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.