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Trip from Mexico, MO to Saint Peters, MO

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

1h 48m

Distance

92.1 mi

148 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$14

one way

EV Charging

Unknown

Best Time to Leave

Save up to 24 min
4 AM
1h 41m ★
6 AM
1h 49m
8 AM
2h 5m
10 AM
1h 54m
12 PM
1h 53m
3 PM
1h 55m
5 PM
2h 4m
8 PM
1h 44m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

city in and county seat of Audrain County, Missouri, United States

Mexico, MO

Wikimedia Commons

city in Missouri

Saint Peters, MO

Wikimedia Commons

Trip Overview

Mexico, MO to Saint Peters, MO is 92.1 miles and takes about 1h 48m via Dwight D. Eisenhower Highway and US 54, with a fuel budget near $14 and enough daylight to finish in a day. This drive stays within Missouri, moving from the Midwest region to another part of the Midwest. It's a relatively short trip, making it ideal for a single-day excursion. Expect a local feel for much of the journey, with a good portion on main highways. This route is straightforward for anyone looking to travel between these two Missouri points without a lengthy commitment.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Midpoint

46 miles from Mexico, MO

A natural place for your longest stop of the day , about 55m into the drive .

Main Roads

Road Distance Duration
Dwight D. Eisenhower Highway 73.7 mi 1h 25m
US 54 13.5 mi 14m
South Clark Street 3.6 mi 5m
High Street 0.1 mi <1m
I 70 <0.1 mi <1m
Mid Rivers Mall Drive <0.1 mi <1m
South Jefferson Street <0.1 mi <1m
Longest stretch: Dwight D. Eisenhower Highway — 73.7 mi, about 1h 25m

Turn-by-Turn Driving Directions

Step-by-step road directions between Mexico, MO and Saint Peters, MO.

1

Start on South Jefferson Street

167 ft · 8 sec · South Jefferson Street
2

Turn right onto High Street

0.1 mi · 34 sec · High Street
3

Turn left onto South Clark Street

3.6 mi · 5 min · South Clark Street
4

Take the ramp

0.2 mi · 32 sec
Toward US 54 West: Jefferson City
5

Merge onto US 54

13 mi · 14 min · US 54
6

Take the exit

0.2 mi · 18 sec
Toward I 70 East, US 40 East: Saint Louis
7

Merge onto I 70; US 40

74 mi · 1 hr 25 min · Dwight D. Eisenhower Highway
Use the straight / slight right lanes.
8

Take the exit

0.2 mi · 19 sec
Exit 222A Toward Mid Rivers Mall Drive Use the straight / slight right lanes.
9

Keep slight left at fork

205 ft · 4 sec
Toward Mid Rivers Mall Drive Use the slight left lane.
10

Turn straight onto Mid Rivers Mall Drive

198 ft · 5 sec · Mid Rivers Mall Drive
11

Take the ramp

0.3 mi · 20 sec
Toward I 70 West: Wentzville Use the slight left lane.
12

Merge onto I 70

479 ft · 6 sec · I 70
13

Arrive at destination

I 70

Trip Plan

Given the 1h 48m duration, this is easily a same-day trip. You could depart in the morning and arrive with plenty of time to spare. Since it's a shorter drive with a low fuel cost of around $14, you have flexibility in your departure time. Keep an eye on local road conditions, especially if you encounter construction on US 54. The longest stretch is over 73 miles, so ensure you're comfortable before you set off on that segment. There are no listed stops, so plan your own breaks as needed.

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 46 miles from Mexico, MO, or about 55m into the drive.
The longest continuous stretch on this route runs about 73.7 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 20 miles or 24m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 46 miles or 55m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 1h 29m

Traffic, exits, and arrival timing usually matter more near Saint Peters, MO than in the middle of the route.

Before You Leave

+

Open the route before leaving Mexico, MO so your first major turns are already loaded.

Day 1

Settle into the route from Mexico, MO

This is one driving day of about 92.1 miles and 1h 48m.

Your first comfortable stop window is around 20 miles from Mexico, MO.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Dwight D. Eisenhower Highway for about 73.7 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Downtown Hermann, MO, MO

Mid-route town

Meal stop

Hermann, MO

46 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Fulton, MO

Fuel and coffee

A short stop after about 20 miles helps settle the day before fatigue starts building.

Warrenton, MO

Meal break

The midpoint is around 46 miles from Mexico, MO, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before Dwight D. Eisenhower Highway if your tank is already low. That segment runs about 73.7 miles.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Heads-up: tricky spots

5 of 10

5 decision points cluster between mile 17.5 and 91.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

6
17.5 mi into trip | ~21m in

Take the exit toward I 70 East, US 40 East: Saint Louis

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Toward I 70 East, US 40 East: Saint Louis
5
17.7 mi into trip | ~22m in | I 70; US 40 / Dwight D. Eisenhower Highway

Merge onto I 70; US 40 / Dwight D. Eisenhower Highway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
7
91.4 mi into trip | ~1h 47m in

Take the exit toward Mid Rivers Mall Drive

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Exit 222A Toward Mid Rivers Mall Drive
8
91.6 mi into trip | ~1h 48m in

Keep slight left at fork toward Mid Rivers Mall Drive

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight left lane. Toward Mid Rivers Mall Drive
6
91.7 mi into trip | ~1h 48m in

Take the ramp toward I 70 West: Wentzville

Lane positioning matters here

Use the slight left lane. Toward I 70 West: Wentzville

Fuel & Cost

Regular Gas

$14.40 one way

$28.80 round trip

$3.97/gal 25.4 MPG avg 32 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.36 $15.81 $31.62
premium $4.89 $17.72 $35.45
diesel $5.61 $20.33 $40.67

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$14

Meals

$25–$50

Total

$39–$64

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 32.2 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $10 in charging · 0 stops · 66% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 27.6 0 $9.67 $4.42
Efficient EV 23 0 $8.06 $3.68
EV Truck/SUV 36.8 0 $12.89 $5.89

Gas CO2

32 kg

EV CO2

11 kg (66% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 20, 2026

Origin

Mexico, MO

Late night in Mexico on Tuesday

Local time

3:10 AM

CDT

Current temp

66°F

Unavailable

Live forecast

Destination

Saint Peters, MO

Late night in Saint Peters on Tuesday

Local time

3:10 AM

CDT

Current temp

71°F

Unavailable

Live forecast

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

5 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

1h 48m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

This route offers a turn-heavy local drive experience, with only 15% of the journey on highways. You'll spend most of your time on roads like South Clark Street and US 54, giving you a more intimate feel for the landscape. The longest uninterrupted stretch you'll encounter is 73.7 miles on the Dwight D. Eisenhower Highway. While it's not a constant interstate cruise, the mix of highway and local roads provides a varied driving experience that keeps things interesting without being overly demanding.

Only 15% highway — the rest is turn-by-turn surface driving.
13 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 73.7 mi on Dwight D. Eisenhower Highway.

How Hard Is This Drive?

5/10

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 10 points where you need to pay attention to lane position or signs. The trickiest moment comes around 17.5 miles in.

Driving Effort 5/10

Moderate - straightforward overall, but long enough or busy enough to require pacing

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 92.1 miles you will encounter 10 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: at 17.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 17.7 miles (I 70; US 40 / Dwight D. Eisenhower Highway): Merge point - match speed before joining. Lane positioning matters here; at 91.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.

About the Cities

Starting in Mexico, MO

Full guide →

Mexico is a city in Audrain County, Missouri, United States. The population was 11,320 at the 2000 census. It is the county seat of Audrain CountyGR6. The Mexico Micropolitan Statistical Area consists of Audrain County. Citizens of Mexico, Missouri are known as "Mexicoans" and not "Mexicans".

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 48m. Total distance: 92.1 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 48m drive, comfortable solo distance.

First-Time Driver

Mostly highway driving (15%). Some complex stretches to watch for.

Scenic Drive

Mostly surface roads route profile.

Frequently Asked Questions

The longest stretch is about 73.7 miles on Dwight D. Eisenhower Highway. The full list of main roads is in the Roads section above.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: at 17.5 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 17.7 miles (I 70; US 40 / Dwight D. Eisenhower Highway): Merge point - match speed before joining. Lane positioning matters here; at 91.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.

Yes. A round trip is manageable in a single day if you plan a break at Saint Peters, MO before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.

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