How far is New Castle, IN from Knox, IN?
The driving distance from New Castle, IN to Knox, IN is about 15.9 miles (25.6 km), with a travel time of about 00h 21m by car.
- The straight-line flight distance is about 11.7 miles (18.8 km).
- For a round trip, plan for roughly 00h 42m 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 21m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Township in Henry County, Indiana
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 New Castle and Knox.
Turn-by-Turn Driving Directions
Step-by-step road directions between New Castle and Knox.
-
1
Start on South Main Street
828 ft · 28 sec · South Main Street
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2
Turn left onto Broad Street
3155 ft · 1 min · Broad Street
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3
Turn left onto South Memorial Drive
5.8 mi · 9 min · South Memorial Drive
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4
Take the ramp slight right
2368 ft · 58 sec
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5
Merge slight left
7.3 mi · 8 min
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6
Take the exit slight right toward SR 109: Wilkinson, Knightstown
1612 ft · 57 sec
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7
Turn right onto McCullum
1.2 mi · 2 min · McCullum
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8
Turn right onto South Grant City Road
2047 ft · 1 min · South Grant City Road
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9
Arrive at your destination
0 m · 1 sec · South Grant City Road
Car Route Details
A richer read on the saved driving route between New Castle and Knox.
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.
South Memorial Drive
Merge slight left
7.34 mi · 00h 08m
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.
Mostly Sunny leaving New Castle and Mostly Sunny near Knox.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from New Castle to Knox?
The road trip is about 15.9 miles (25.6 km) and usually takes 00h 21m 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?
Spiceland is a useful midpoint, sitting about 8.1 miles from New Castle and 7.8 miles from Knox.
How much longer is the road route than the straight-line distance?
The direct path is about 11.7 miles (18.8 km), while the road route adds roughly 4.2 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 7:48 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.11 one way or $4.22 round trip. Estimated CO2 is about 5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around New Castle and Mostly Sunny near Knox.
Stop Ideas Near Spiceland
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 Spiceland.
Connersville station
Indianapolis Union Station
Cincinnati Museum Center at Union Terminal
Cincinnati, OH
Flight Path Map
This map shows the direct air route between New Castle and Knox. Straight-line distance: 11.68 mi (18.79 km).
#1 New Castle
City in Indiana
| Population | 17,106 |
| Coordinates | 39.9289400, -85.3702500 |
| Altitude | 324 |
| Country | United States |
#2 Knox
City in Center Township, Starke County, Indiana, United States
| Population | 3,552 |
| Coordinates | 39.8231000, -85.5419200 |
| Altitude | 300 |
| Country | United States |
End: South Grant City Road (-85.541923, 39.8231)
Estimated Travel Time
Distance: 26 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 31m |
| 40 mph (64.37 km/h) | 00h 23m |
| 50 mph (80.47 km/h) | 00h 19m |
| 60 mph (96.56 km/h) | 00h 15m |
| 70 mph (112.65 km/h) | 00h 13m |
| 80 mph (129 km/h) | 00h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $2.11 | $4.22 |
| Mid-grade | $4.25 | $2.38 | $4.76 |
| Premium | $4.65 | $2.61 | $5.21 |
| Diesel | $5.30 | $2.97 | $5.94 |
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 Indiana · 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.