How far is Harvard, IL from Marengo, IL?

The driving distance from Harvard, IL to Marengo, IL is about 12.2 miles (19.7 km), with a travel time of about 00h 18m by car.

  • The straight-line flight distance is about 12 miles (19.3 km).
  • For a round trip, plan for roughly 00h 37m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
12.22 mi
00h 18m
Flight
12 mi
19.31 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Harvard.

Flight Distance

Direct air line
12 mi
Kilometers
19.31 km
Flight Time
00h 01m

Driving Distance

Road route
12.22 mi
Kilometers
19.66 km
Drive Time
00h 18m

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 18m.

Arrival Snapshot
Arrive in Marengo
Thu, Oct 15, 1:40 PM CDT
Return by in Harvard
Thu, Oct 15, 1:59 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Harvard
2026-10-15T13:21
Arrive Marengo
Thu, Oct 15, 1:40 PM CDT
Route Timing
00h 18m
One way by road
Best Departure Window
7:00 AM to 7:00 PM CDT
Leave when it suits your day
Arrive between
7:19 AM to 7:19 PM CDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:52 PM CDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Harvard
10:00 PM CDT
Flexible departure

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Hartland
IL

Human settlement in Illinois, United States of America

From Harvard
6.1 mi
00h 09m
To Marengo
6.1 mi
00h 09m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
61°F
Thursday

Rain Showers

Starts
Thu, Oct 15 6:00 AM CDT
Wind
5 to 10 mph E
Destination
61°F
Thursday

Rain Showers

Starts
Thu, Oct 15 6:00 AM CDT
Wind
5 to 10 mph E

Driving Route Map

The map below follows the saved road route between Harvard and Marengo.

Turn-by-Turn Driving Directions

Step-by-step road directions between Harvard and Marengo.

  1. 1

    Start on North Division Street

    1.6 mi · 3 min · North Division Street

  2. 2

    Turn right onto State Route 23

    10.6 mi · 16 min · State Route 23

  3. 3

    Arrive at your destination

    0 m · 1 sec · South State Street

Car Route Details

A richer read on the saved driving route between Harvard and Marengo.

OSRM road route
Drive Character

Straightforward drive

The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.

Directions
3 steps
1 turns on the saved route
Ramps & Exits
0
0 merges, 0 ramps or exits
Navigation Density
24.6 / 100 mi
Decision points by distance
Main Roads
State Route 23
10.6 mi · 87%
North Division Street
1.61 mi · 13%
Longest Stretch

State Route 23

Turn right onto State Route 23

10.6 mi · 00h 16m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
00h 18m
Quick drive
Same-Day Return
00h 38m
Round-trip wheel time
Road vs Air
+0.2 mi
12 mi direct line
Halfway Stop
Hartland
00h 09m from Harvard
Leave By
7:52 PM CDT
Flexible departure
Weather Watch

Rain Showers leaving Harvard and Rain Showers near Marengo.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Harvard to Marengo?

The road trip is about 12.2 miles (19.7 km) and usually takes 00h 18m 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?

Hartland is a useful midpoint, sitting about 6.1 miles from Harvard and 6.1 miles from Marengo.

How much longer is the road route than the straight-line distance?

The direct path is about 12 miles (19.3 km), while the road route adds roughly 0.2 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 CDT. If you want a more comfortable same-day return, try to leave by 7:52 PM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $2.01 one way or $4.01 round trip. Estimated CO2 is about 3.8 kg one way.

What should you check before leaving?

Before you leave, expect Rain Showers around Harvard and Rain Showers near Marengo.

Stop Ideas Near Hartland

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Hartland, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Hartland.

BUS

Rockford, Illinois

40 mi away
7559 Walton St.
BUS

South Beloit, Illinois

42 mi away
15766 Manchester Road
BUS

Janesville, Wisconsin

56 mi away
3120 North Pontiac Drive
RAIL

Sturtevant station

63 mi away
9900 East Exploration Court

Flight Path Map

This map shows the direct air route between Harvard and Marengo. Straight-line distance: 12 mi (19.31 km).

Harvard

#1 Harvard

Private research university in Cambridge, Massachusetts, United States

Population8,979
Coordinates42.4222400, -88.6137100
Altitude292
CountryUnited States
Marengo

#2 Marengo

City in McHenry County, Illinois, United States

Population7,377
Coordinates42.2486300, -88.6084300
Altitude254
CountryUnited States
Start: Harvard (-88.61371, 42.42224)
End: Marengo (-88.60843, 42.24863)

Estimated Travel Time

Distance: 20 km by road

SpeedTime
30 mph (48.3 km/h)00h 24m
40 mph (64.37 km/h)00h 18m
50 mph (80.47 km/h)00h 14m
60 mph (96.56 km/h)00h 12m
70 mph (112.65 km/h)00h 10m
80 mph (129 km/h)00h 09m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
0.43 gal
1.63 L · about $2.01
Round trip
$4.01
0.86 gal · 3.26 L
Estimated CO2
3.8 kg one way
Round trip: 7.6 kg / 17 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.67 $2.01 $4.01
Mid-grade $5.29 $2.28 $4.55
Premium $5.84 $2.51 $5.02
Diesel $6.57 $2.83 $5.65

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 Illinois · Oct 15, 2026

There is no time difference between Harvard and Marengo. The current time is 13:21:49.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.