How Fast Do Trains Go? Live Train Speedometer

How fast do trains go? In the US, most passenger trains top out at 79 mph (127 km/h), the fastest, Amtrak’s NextGen Acela, reaches 160 mph (257 km/h), and freight trains are held to 60 mph or less. The rest of this page explains where those numbers come from, from federal track rules to the signals beside the line. The live GPS speedometer above shows how fast your own train is going right now.

Key terms on this page. FRA: the Federal Railroad Administration, the US rail safety regulator. Track class: the federal rating (Class 1 to Class 9) that sets a line’s maximum speed under 49 CFR Part 213. PTC (positive train control): an automatic system that can stop a train that is going too fast. Northeast Corridor (NEC): Amtrak’s Washington–New York–Boston main line. Speed over ground: the speed your phone’s GPS measures, the train’s true speed along the track.

How fast do trains go in the US?

US trains run from about 10 mph in yards to 160 mph on the best Northeast Corridor track, and the train type and the track decide where in that range a given train sits. Freight trains usually move at 40–60 mph, regional and long-distance passenger trains at up to 79–125 mph, and only the Acela goes faster.

The top speed is the number people quote, but you’ll only see it on short stretches. Curves, junctions, bridges, work zones, slower trains ahead and station approaches all hold a train back, so its average speed between cities is usually far below its top speed. A train that can do 160 mph may average well under 100 mph over a full trip.

How fast does Amtrak go?

Amtrak’s top speed is 160 mph on the NextGen Acela, but most Amtrak routes top out at 79 mph and a few corridors reach 110–125 mph. Which number applies depends on which train you’re on and whose track it runs on.

NextGen Acela (Washington–New York–Boston). The new Acela entered public service on August 28, 2025, with a top speed of 160 mph, 10 mph more than the first-generation Acela’s 150 mph, and 27% more seats per departure (WBUR). Amtrak calls it “the fastest train in the Western Hemisphere” (Amtrak, May 2026). By July 2026, 13 trainsets were in service and the schedule had grown to 32 weekday NextGen Acela trips, up from 26 (Amtrak, July 2026). At launch, Amtrak planned 28 NextGen trainsets in all by 2027 (WBUR).

The 160 mph figure applies only to short, upgraded sections of the Northeast Corridor. Much of the line south of New York uses older bridges and tunnels. Amtrak says the current Bush and Gunpowder River bridges in Maryland allow 125 mph today (Amtrak, Oct 2026), and trains slow sharply on the approaches to New York Penn Station, Baltimore and Washington.

Lincoln Service (Chicago–St. Louis). Amtrak and Illinois began 110 mph schedules on most of this corridor in 2023 (Amtrak, May 2023), making it one of the few places outside the Northeast where a passenger train runs faster than 79 mph.

Amtrak Airo. Amtrak’s new regional fleet is built for up to 125 mph (Amtrak, Oct 2023). As with every train, the track it runs on sets the real limit.

Long-distance trains. Routes such as the Empire Builder, Southwest Chief, California Zephyr and Coast Starlight run mostly on track owned by freight railroads. There the normal ceiling is 79 mph, and many sections are slower because of curves, grades and freight traffic. The next section explains why the number is 79 and not 80.

Brightline (not Amtrak). Florida’s private intercity line reaches 125 mph through central Florida farmland, 110 mph in less-populated areas and 79 mph in urban areas, covering 235 miles between Miami and Orlando in about 3.5 hours (AP via ClickOrlando). That works out to an average of about 67 mph (108 km/h), a good example of how far a trip’s average falls below its top speed.

Japan’s Shinkansen runs at up to 320 km/h (199 mph) every day; our bullet train speed page breaks it down by line, with the maglev record.

Why can’t US trains go faster? FRA track classes

A train can never go faster than the track it’s on, and federal rules give every section of US track a class with a maximum speed. The FRA’s Track Safety Standards (49 CFR Part 213) set those classes by how the track is built, inspected and maintained: alignment, gauge, ties, surface and inspection frequency.

Classes 1–5 come from 49 CFR 213.9 and Classes 6–9 from the high-speed rules in 49 CFR 213.307. Speeds above 125 mph (Classes 8 and 9) also need specific FRA approval. Under the high-speed rules, freight may run at passenger speeds only if it meets conditions such as equal dynamic performance. The km/h, seconds-per-mile and minutes-per-100-miles columns are our calculations (1 mph = 1.609344 km/h exactly; seconds per mile = 3,600 ÷ mph). If a section of track falls short of its class, the railroad must downgrade it to the class it does meet, so poor maintenance shows up directly as slower trains.

The 79 mph rule. Track class isn’t the only limit. Under 49 CFR 236.0, any train permitted to run at 80 mph or more needed an automatic cab signal, automatic train stop or automatic train control system before December 31, 2015; since then it needs a positive train control (PTC) system, unless the FRA approves continued use of the older equipment. Passenger trains at 60 mph or more and freight trains at 50 mph or more need a block signal system or PTC. Lines without the 80 mph equipment cap passenger trains at 79 mph, which is why that odd number shows up in so many Amtrak timetables.

The other brakes on US speed. Even where track and signals allow more, trains slow down for:

• Curves. A train’s safe speed on a curve depends on its radius and banking (superelevation). Old routes laid out in the 1800s follow rivers and valleys with tight curves.
• Shared track. Most US passenger trains outside the Northeast run on freight railroads’ track, where they share space with slower, heavier trains.
• Old bridges and tunnels. The Northeast Corridor’s Baltimore tunnels, its Hudson and East River tunnels and its movable bridges all carry lower speeds.
• Grade crossings. Thousands of road crossings make very high speeds impractical on most lines; true high-speed lines are fully separated.
• Stops. A train that stops every 20 miles spends much of its time speeding up and slowing down.

You can see all of this on the speedometer: the train holds a steady number for miles (the class limit or a posted speed restriction), drops for a curve or bridge, then climbs back.

How fast do freight trains go?

US freight trains are capped at 60 mph on Class 4 track and 40 mph on Class 3, the classes most freight main lines use, and in practice many run slower. On the best Class 5 track the federal limit for freight is 80 mph, but heavy trains rarely approach it.

Federal rules set the ceiling; the train sets the rest. A long, heavy freight train needs far more distance to stop than a passenger train, climbs grades slowly, and must slow for yards, junctions and sidings when it pulls over to let other trains pass. Railroads also set their own timetable speeds below the federal maximum for some trains and loads.

The signal rule matters for freight too. Under 49 CFR 236.0, a freight train may run at 50 mph or more only where a block signal system or PTC is in place. On “dark” territory without signals, freight trains stay below 50 mph.

The last column is a handy way to judge a freight train’s speed from a grade crossing: a one-mile train that takes a full minute to pass is doing 60 mph; one that takes six minutes is crawling at 10 mph. Values are computed from the exact definitions (1 mile = 5,280 ft, 1 mph = 1.609344 km/h).

How do US trains compare with the fastest trains in the world?

At 160 mph, the NextGen Acela is the fastest train in the Western Hemisphere, but high-speed lines in Asia and Europe run regular service considerably faster. The difference isn’t the trains so much as the track: those countries built dedicated, fenced lines with gentle curves and no road crossings, while US passenger trains mostly share old routes with freight.

Two structural differences explain most of the gap:

• Dedicated high-speed track. The fastest foreign services run on lines built only for high-speed passenger trains. In the US, Classes 8 and 9 exist in the rules (160 and 220 mph) but almost no track is built to them yet.
• Electrification. The Northeast Corridor is electrified; most other US routes are not, and the diesel trains that run there carry their own power plant.

Is high-speed rail coming to the US?

Two true high-speed lines are being planned or built, both designed for about 200–220 mph, but neither carries passengers yet. Until one opens, the 160 mph NextGen Acela stays the fastest US train.

Brightline West says its trains will reach 200 mph and link Las Vegas with Rancho Cucamonga in about 2 hours 10 minutes, an average of roughly 100 mph over 218 miles (our calculation). In January 2026 the company told FOX5 the project is scheduled for completion by late 2029. California’s system is described in federal environmental filings as capable of up to 220 mph on dedicated, grade-separated track, the same 220 mph ceiling as FRA Class 9. Both are built on new, fenced alignments with no road crossings, which is exactly what the existing US network lacks.

For a ranked list of today’s fastest trains, from Chinese and Japanese high-speed lines to maglev, with operator-sourced speeds, see the fastest trains in the world. For how airliners compare, see how fast do planes fly.

How long does a train trip take at each speed?

Divide the distance by the average speed, not the top speed: a 225-mile trip takes about 2 h 51 min at a 79 mph average and 1 h 24 min at a 160 mph average. Real trips are slower because of stops, starts and slow zones.

Times are computed as distance ÷ speed and rounded to the minute. 225 miles is roughly the rail distance between New York and Washington. Compare it with the actual timetable and you can work out a train’s real average speed: if a train is scheduled at 2 h 50 min for 225 miles, it averages about 79 mph even though it touches far higher numbers along the way.

The same logic explains Brightline’s 3.5-hour Miami–Orlando time despite 125 mph running: 235 miles ÷ 3.5 h is about 67 mph. To work out your own trip, use the speed, distance and time calculator; its multi-leg mode gives the true average speed when one segment is fast and another slow.

How do I check how fast my train is going?

Open this page, sit by a window and tap Start: your phone’s GPS shows the train’s live speed in mph or km/h, plus top speed, average and distance. Railroads rarely show speed in the cabin, so a GPS speedometer is the only real-time number most passengers have.

1. Open the page in the station while you still have signal. Once it’s loaded, the speedometer keeps working with no data or Wi-Fi.
2. Tap Start and allow location. Inside a coach the first fix can take 10–60 seconds. Hold the phone near the window.
3. Watch the accuracy line. Once it reads “good” or better, the speed is reliable.
4. Keep the tab open and the screen on. Top speed, average, distance and time keep updating.
5. At the end, note your top speed or export the trip as a GPX file to see on a map where the train was fastest.

Sit by a window. Readings pause in tunnels and resume within seconds of open sky. Steel car bodies block much of the satellite signal, so a phone in a bag or deep in your lap may never get a fix. The upper level of a double-deck car and the café car’s big windows are often the best spots.

What the readings mean. Speed updates about once a second. Max is the fastest moment since you tapped Start (reset it when you change trains). Average is distance ÷ moving time, so station stops don’t drag it down. Distance counts only movement above 1.1 mph. On mountain routes such as the California Zephyr over the Rockies, the altitude view lets you watch the climb.

Is GPS accurate enough on a train? Yes. Phones measure speed from the Doppler shift of satellite signals, not from position changes alone. GPS.gov puts typical smartphone position accuracy at 4.9 m (16 ft) under open sky, and the GPS signal’s speed-error commitment is 0.006 m/s over any 3-second interval. On open track at a steady speed a phone is usually within about 1 mph; the weak link is the metal car around you.

For why phone GPS and a car dashboard often disagree, see GPS vs car speedometer. To switch units, tap km/h under the gauge or use the mph to km/h converter: 79 mph = 127.1 km/h, 110 mph = 177.0 km/h, 160 mph = 257.5 km/h.

How can you tell a train’s speed without GPS?

Time the mileposts: 3,600 divided by the seconds between two mileposts gives the speed in mph. Railfans used this long before smartphones, and it’s a good check on the GPS reading.

US railroads mark every mile with a small numbered sign beside the track. Start a stopwatch as one passes your window and stop it at the next.

speed (mph) = 3,600 ÷ seconds between mileposts

Rail joints. On older jointed track, rails come in 39-foot lengths and each joint makes the “clickety-clack”. Count the clicks for 26.6 seconds and the count equals your speed in mph (39 ft × 3,600 ÷ 5,280 = 26.6). Most main lines now use continuous welded rail with no joints, so on Amtrak’s busiest routes you’ll rarely hear them.

Timetable distance. Divide the distance between two stations by the scheduled time for an average speed. It’s always below the top speed because it includes acceleration and braking, but it shows how fast the trip really is.

All three methods give one number for one stretch. GPS gives a continuous reading, so you can see exactly where the train speeds up and slows down.

Safety and privacy

Using a speedometer as a passenger is safe and legal; just don’t lean out of windows or doors or stand in vestibules for a better signal. Keep the screen dim at night and the sound off in Quiet Cars. GPS plus a screen that stays on uses more battery than browsing, so plug in on long trips if your seat has an outlet.

Your location never leaves your phone. Speed and distance are calculated in your browser, kept only while the page is open, and nothing is sent to our servers. GPS speed is an estimate that depends on signal and sky view, so it can lag or jump in tunnels and stations; it’s for information, not official records. See the privacy policy, or use the main online speedometer for cars, bikes and walking.