How far is Sumter, SC from Lamar, SC?
The driving distance from Sumter, SC to Lamar, SC is about 24.5 miles (39.5 km), with a travel time of about 00h 37m by car.
- The straight-line flight distance is about 23.4 miles (37.7 km).
- For a round trip, plan for roughly 01h 15m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 37m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Sumter County, South Carolina, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Sumter and Lamar.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sumter and Lamar.
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1
Start on East Liberty Street
1685 ft · 38 sec · East Liberty Street
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2
Turn left onto North Lafayette Drive
1432 ft · 30 sec · North Lafayette Drive
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3
Turn right onto East Calhoun Street
2077 ft · 35 sec · East Calhoun Street
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4
Continue on Oswego Highway
8.5 mi · 13 min · Oswego Highway
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5
Continue on Darlington Highway
10.2 mi · 15 min · Darlington Highway
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6
Continue on Davis Street
4.9 mi · 7 min · Davis Street
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7
Arrive at your destination
0 m · 1 sec · Boykin Avenue
Car Route Details
A richer read on the saved driving route between Sumter and Lamar.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Darlington Highway
Continue on Darlington Highway
10.2 mi · 00h 15m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Partly Sunny leaving Sumter and Mostly Cloudy near Lamar.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sumter to Lamar?
The road trip is about 24.5 miles (39.5 km) and usually takes 00h 37m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Mayesville is a useful midpoint, sitting about 12.2 miles from Sumter and 12.2 miles from Lamar.
How much longer is the road route than the straight-line distance?
The direct path is about 23.4 miles (37.7 km), while the road route adds roughly 1.1 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.22 one way or $6.44 round trip. Estimated CO2 is about 7.7 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Sumter and Mostly Cloudy near Lamar.
Stop Ideas Near Mayesville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Sumter City Hall
Lynchburg Municipal Building
Bishopville City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mayesville.
Florence
Camden
Kingstree
Columbia
Flight Path Map
This map shows the direct air route between Sumter and Lamar. Straight-line distance: 23.44 mi (37.72 km).
#1 Sumter
City in and county seat of Sumter County, South Carolina, United States
| Population | 39,439 |
| Coordinates | 33.9204400, -80.3414700 |
| Altitude | 52 |
| Country | United States |
#2 Lamar
Town in South Carolina
| Population | 930 |
| Coordinates | 34.1687700, -80.0625700 |
| Altitude | 52 |
| Country | United States |
End: Lamar (-80.06257, 34.16877)
Estimated Travel Time
Distance: 39 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 36m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $3.22 | $6.44 |
| Mid-grade | $4.17 | $3.63 | $7.25 |
| Premium | $4.57 | $3.98 | $7.95 |
| Diesel | $5.79 | $5.04 | $10.08 |
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 Carolina · Oct 31, 2026