How far is Gregory, SD from Watertown, SD?
The driving distance from Gregory, SD to Watertown, SD is about 240 miles (386.3 km), with a travel time of about 03h 58m by car.
- The straight-line flight distance is about 162.7 miles (261.9 km).
- For a round trip, plan for roughly 07h 56m 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 58m.
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 and the county seat of Hanson County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Gregory and Watertown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gregory and Watertown.
-
1
Start on East 6th Street
1291 ft · 59 sec · East 6th Street
-
2
At the end of the road, turn right onto Park Avenue
10.6 mi · 19 min · Park Avenue
-
3
Turn right onto State Highway 44
16 mi · 24 min · State Highway 44
-
4
Continue on SD Highway 44
14.9 mi · 22 min · SD Highway 44
-
5
Continue on West 7th Street
2086 ft · 41 sec · West 7th Street
-
6
Turn left onto South Main Avenue
1.2 km · 1 min · South Main Avenue
-
7
Continue on SD Highway 45
23.7 mi · 35 min · SD Highway 45
-
8
Take the ramp right
1563 ft · 38 sec
-
9
Merge slight left
60.2 mi · 56 min
-
10
Take the exit slight right toward SD 25: Emery, Farmer
1688 ft · 48 sec
-
11
Turn left onto SD Highway 25
23.8 mi · 28 min · SD Highway 25
-
12
Turn right onto SD Highway 34
6 mi · 7 min · SD Highway 34
-
13
Turn left onto SD Highway 25
60 mi · 1 hr 11 min · SD Highway 25
-
14
At the end of the road, turn right onto US Highway 212
3.9 mi · 6 min · US Highway 212
-
15
Continue on 4th Street
1 mi · 2 min · 4th Street
-
16
Continue on US Highway 212
10.6 mi · 12 min · US Highway 212
-
17
Continue on 9th Avenue Southwest
6.4 mi · 9 min · 9th Avenue Southwest
-
18
Turn left onto South Broadway
1.1 km · 2 min · South Broadway
-
19
Arrive at your destination
0 m · 1 sec · South Broadway
Car Route Details
A richer read on the saved driving route between Gregory and Watertown.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
SD Highway 45
Merge slight left
60.2 mi · 00h 56m
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.
Mostly Sunny leaving Gregory and Mostly Sunny near Watertown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gregory to Watertown?
The road trip is about 240 miles (386.3 km) and usually takes 03h 58m 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?
Alexandria is a useful midpoint, sitting about 119.9 miles from Gregory and 120.2 miles from Watertown.
How much longer is the road route than the straight-line distance?
The direct path is about 162.7 miles (261.9 km), while the road route adds roughly 77.3 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 9:04 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.94 one way or $63.88 round trip. Estimated CO2 is about 75.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Gregory and Mostly Sunny near Watertown.
Flight Path Map
This map shows the direct air route between Gregory and Watertown. Straight-line distance: 162.72 mi (261.87 km).
#1 Gregory
City in Gregory County, South Dakota, United States
| Population | 1,250 |
| Coordinates | 43.2322200, -99.4303800 |
| Altitude | 661 |
| Country | United States |
#2 Watertown
City in and county seat of Codington County, South Dakota, United States
| Population | 22,303 |
| Coordinates | 44.8994100, -97.1150700 |
| Altitude | 528 |
| Country | United States |
End: South Broadway (-97.115008, 44.899398)
Estimated Travel Time
Distance: 386 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 59m |
| 40 mph (64.37 km/h) | 06h 00m |
| 50 mph (80.47 km/h) | 04h 48m |
| 60 mph (96.56 km/h) | 04h 00m |
| 70 mph (112.65 km/h) | 03h 25m |
| 80 mph (129 km/h) | 02h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $31.94 | $63.88 |
| Mid-grade | $4.25 | $36.02 | $72.05 |
| Premium | $4.65 | $39.42 | $78.84 |
| Diesel | $5.30 | $44.92 | $89.85 |
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 South Dakota · 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.