How far is New Castle, IN from Decatur, IN?
The driving distance from New Castle, IN to Decatur, IN is about 77.1 miles (124 km), with a travel time of about 01h 37m by car.
- The straight-line flight distance is about 66.5 miles (107 km).
- For a round trip, plan for roughly 03h 15m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 37m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Jay County, Indiana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Isolated Showers And Thunderstorms
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between New Castle and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between New Castle and Decatur.
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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 · 58 sec · Broad Street
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3
Turn right onto North Memorial Drive
14.9 mi · 22 min · North Memorial Drive
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4
Take the ramp right toward SR 3 North, SR 67 North: Portland
1697 ft · 41 sec
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5
Merge slight left onto Muncie Bypass
6.8 mi · 9 min · Muncie Bypass
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6
Take the exit straight toward SR 67 North: Portland
1719 ft · 47 sec
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7
Keep slight right
7.5 mi · 9 min
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8
Turn straight onto West Walnut Street
18.2 mi · 21 min · West Walnut Street
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9
Turn left onto North Meridian Street
15.1 mi · 17 min · North Meridian Street
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10
Continue on South Church Avenue
12.6 mi · 14 min · South Church Avenue
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11
Turn right onto West Monroe Street
2422 ft · 41 sec · West Monroe Street
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12
Arrive at your destination
0 m · 1 sec · West Monroe Street
Car Route Details
A richer read on the saved driving route between New Castle and Decatur.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
West Walnut Street
Turn straight onto West Walnut Street
18.2 mi · 00h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Isolated Showers And Thunderstorms leaving New Castle and Slight Chance Rain Showers near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from New Castle to Decatur?
The road trip is about 77.1 miles (124 km) and usually takes 01h 37m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Redkey is a useful midpoint, sitting about 38.5 miles from New Castle and 38.6 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 66.5 miles (107 km), while the road route adds roughly 10.6 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:14 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.50 one way or $21.01 round trip. Estimated CO2 is about 24.2 kg one way.
What should you check before leaving?
Before you leave, expect Isolated Showers And Thunderstorms around New Castle and Slight Chance Rain Showers near Decatur.
Stop Ideas Near Redkey
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 Redkey.
Connersville station
Indianapolis Union Station
Flight Path Map
This map shows the direct air route between New Castle and Decatur. Straight-line distance: 66.49 mi (107 km).
#1 New Castle
City in Indiana
| Population | 17,106 |
| Coordinates | 39.9289400, -85.3702500 |
| Altitude | 324 |
| Country | United States |
#2 Decatur
City in Indiana, United States
| Population | 34,821 |
| Coordinates | 40.8306000, -84.9291300 |
| Altitude | 244 |
| Country | United States |
End: West Monroe Street (-84.929141, 40.83064)
Estimated Travel Time
Distance: 124 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 34m |
| 40 mph (64.37 km/h) | 01h 55m |
| 50 mph (80.47 km/h) | 01h 32m |
| 60 mph (96.56 km/h) | 01h 17m |
| 70 mph (112.65 km/h) | 01h 06m |
| 80 mph (129 km/h) | 00h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.86 | $10.50 | $21.01 |
| Mid-grade | $4.46 | $12.12 | $24.24 |
| Premium | $4.99 | $13.57 | $27.13 |
| Diesel | $6.62 | $18.01 | $36.02 |
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 · Oct 15, 2026