A computer-optimized route posted by a community member estimates about 113 hours of driving to pass through all 48 contiguous states. That is wheel-turning time, not a realistic door-to-door trip: the estimate excludes rest stops, traffic and sightseeing, and it is not an official or universally applicable itinerary. In practice, your total depends on what counts as visiting each state, your route and how much time you set aside to sleep and stop.
What does “drive through the Lower 48” mean?
There is no single route implied by the phrase. It might mean touching every contiguous state, driving across each state, visiting a chosen city in each, or making a loop that starts and ends at home. Those choices change the route, distance and time.
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The roughly 113-hour figure comes from a Reddit community post describing a computer-optimized path through all 48 states. The post does not establish a universal official route or provide a mileage total and independently reproducible route calculation. Treat it as an illustrative estimate for one interpretation of “through all states,” not a guaranteed trip time.
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Why 113 hours is not a realistic trip schedule
The estimate expressly excludes rest stops, traffic and sightseeing. It therefore should not be read as a safe or practical plan for one driver to complete in roughly five days. A real trip also needs time for sleep, meals, fuel, road conditions and unexpected delays; sightseeing adds more time still. The total can only be estimated once the route and stops are specified.
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The scale of the road network helps explain why route choice matters: the Federal Highway Administration’s Our Nation’s Highways 2026 reports 4.2 million miles of public roads in the United States. That national figure provides context; it does not validate or prescribe an all-state route.
Driving across the country is a different trip
A coast-to-coast crossing does not visit every contiguous state. The U.S. Census Bureau said in May 2023 that drivers can cross the United States using Interstate highways in 43 hours. That comparison is also a driving-time figure, not a promise of elapsed trip time with stops.
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| Route example | Endpoints | Length |
|---|---|---|
| I-80 | Teaneck, New Jersey, to San Francisco | 2,901 miles |
| I-90 | Seattle to Boston | 3,021 miles |
| U.S. Route 20 | Newport, Oregon, to Boston | 3,365 miles |
| I-10 | Santa Monica to Jacksonville | 2,460 miles |
These route lengths are examples listed by the Census Bureau in its 2023 explainer. None is an all-48-states itinerary, so their mileage and the 43-hour crossing figure should not be substituted for the 113-hour estimate.
How to estimate your own all-state drive
- Define the visit rule. Decide whether merely entering each state counts or whether you want to cross it, reach a landmark or stop in a city.
- Set endpoints. Choose a start and finish, and decide whether the trip is a loop. A home-to-home route may differ substantially from an open-ended route.
- Choose roads and destinations. Compare candidate routes by states included, endpoints, miles and estimated driving hours. The 113-hour post does not supply a verified mileage total, so it cannot serve as a mileage-based planning baseline.
- Add non-driving time. Reserve time for sleep, meals, fuel, breaks and sightseeing rather than treating estimated wheel-turning hours as the full trip duration.
- Allow for conditions. Traffic and road conditions affect actual travel time; neither is accounted for in the community estimate.
A road atlas can be useful for a broad overview or offline reference, but it is optional. The FHWA’s national road statistics do not identify the best route for a personal itinerary.
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A historical contrast, not a modern benchmark
H. Nelson Jackson’s 1903 transcontinental automobile journey illustrates how different road travel once was. The FHWA says detours to avoid impassable trails and flooded areas added nearly 3,000 miles. The Census Bureau describes Jackson’s San Francisco-to-New York trip as lasting 63½ days, from May 23 to July 26. That historical crossing is not a comparable measure of driving through all 48 states today.
Quick Recap
Sources
- Community-posted computer-optimized 48-state route estimate (Reddit).
- U.S. Census Bureau, automobile history and cross-country routes (May 2023).
- Federal Highway Administration, Our Nation’s Highways 2026.
- Federal Highway Administration, H. Nelson Jackson’s 1903 trip.
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