Origin
Jennings, MO
Late night in Jennings on Sunday
Local time
2:31 AM
CDT
Current temp
83°F
Unavailable
Live forecast
Trip from Jennings, MO to Saint Peters, MO
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
28m
Distance
22.1 mi
35 km
Drive Score
4/10
Practical drive
Same Day?
Yes, doable
Fuel Cost
$3
one way
EV Charging
Fair
3 stations
Best Time to Leave
4 AM
0h 26m
★
6 AM
0h 29m
8 AM
0h 34m
10 AM
0h 31m
12 PM
0h 30m
3 PM
0h 31m
5 PM
0h 34m
8 PM
0h 27m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Jennings, MO
Mikhail Nilov
Saint Peters, MO
Wikimedia Commons
Trip Overview
Jennings, MO to Saint Peters, MO is 22.1 miles and takes about 28m via I 70, with a fuel budget near $3 and enough daylight to finish in a day. This short drive stays within the Midwest region, taking you from one part of Missouri to another. It's a straightforward trip that's ideal for a quick hop, whether you're moving between areas or just need to get from point A to point B efficiently. You'll find this route to be primarily highway, making it a quick and predictable journey.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 70 | 20.7 mi | 26m |
| Jennings Station Road | 1.1 mi | 2m |
Longest stretch:
I 70
— 20.7 mi, about 26m
Turn-by-Turn Driving Directions
Step-by-step road directions between Jennings, MO and Saint Peters, MO.
1
Start on Jennings Station Road
1.1 mi
·
2 min
·
Jennings Station Road
2
Take the ramp
0.3 mi
·
21 sec
Toward I 70 West: Wentzville
3
Merge onto I 70
21 mi
·
26 min
·
I 70
Use the straight / slight right lanes.
4
Arrive at destination
I 70
Heads-up: tricky spots
2 of 22 decision points cluster between mile 1.1 and 1.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
3
1.1 mi into trip
|
~2m in
Take the ramp toward I 70 West: Wentzville
Navigation decision point
Toward I 70 West: Wentzville
5
1.4 mi into trip
|
~2m in
|
I 70
Merge onto I 70
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
Fuel & Cost
Regular Gas
$3.46 one way
$6.91 round trip
$3.97/gal
25.4 MPG avg
8 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.36 | $3.79 | $7.59 |
| premium | $4.89 | $4.25 | $8.51 |
| diesel | $5.61 | $4.88 | $9.76 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$3
Estimated CO2 emission: 7.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $2 in charging · 0 stops · 63% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 6.6 | 0 | $2.32 | $1.06 |
| Efficient EV | 5.5 | 0 | $1.93 | $0.88 |
| EV Truck/SUV | 8.8 | 0 | $3.09 | $1.41 |
Gas CO2
8 kg
EV CO2
3 kg (63% 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.
Destination
Saint Peters, MO
Late night in Saint Peters on Sunday
Local time
2:31 AM
CDT
Current temp
57°F
Unavailable
Live forecast
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
26 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
28m 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 drive is almost entirely highway-focused, with a 94% share on major roads. You'll spend the majority of your time on I 70, experiencing a consistent stretch of 20.7 miles on this interstate. The character of the drive is direct and efficient, designed for covering ground quickly rather than leisurely exploration. Expect smooth sailing on well-maintained highways for nearly the entire duration of your trip.
94% highway — fuel and pacing are the main things to plan.
4 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 20.7 mi on I 70.
How Hard Is This Drive?
1/10
This is a straightforward highway drive that stays mostly on I 70 and Jennings Station Road. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 1.1 miles in.
Driving Effort
1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Jennings, MO to Saint Peters, MO is easy. At 28m with 94% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 1.1 miles: Navigation decision point; at 1.4 miles (I 70): Merge point - match speed before joining. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 28m. Total distance: 22.1 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
28m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (94%). Straightforward navigation.
Frequently Asked Questions
The longest stretch is about 20.7 miles on I 70. 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 1.1 miles: Navigation decision point; at 1.4 miles (I 70): Merge point - match speed before joining. Lane positioning matters here.
Yes — Gateway Arch National Park. See the National Parks section for detour distances and tips on detours.
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, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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