The Paris metro, explained: how to read the map and find your way

Building a mental map of the network

Paris is dense, and its metro reflects that. Sixteen numbered lines, run by Île-de-France Mobilités, criss-cross the city and its immediate edge, each identified by a number and a colour on the map rather than a compass direction or a destination name printed on the line itself. Once that clicks, the rest of the system gets much easier to use on foot, from a phone screen, or from a paper map picked up at any station.

The first habit worth building is to stop thinking in north, south, east, and west and start thinking in termini. Every line runs between two end stations, and every train on the platform is signed with the name of whichever terminus it is heading toward, not with the direction it is travelling. A rider going from Montmartre toward Le Marais is not looking for an eastbound train; they are looking for the platform signed with the terminus at the far end of that line, in that direction. It takes one or two trips to get comfortable with this, and after that it stops being a decision at all.

Lines are colour-coded and numbered on every printed and digital version of the map, and most stations post a local extract of the map on the platform showing just that line, its stops in order, and its two termini. That local map is often more useful in the moment than the full network map, because it removes everything you don’t need and shows exactly which direction gets you where.

Correspondences: where lines meet, and what that costs in time

A correspondence is simply a station where two or more lines cross and let you change trains without leaving the paid zone. Correspondences are what make the network work as a grid rather than a set of separate lines, and a typical cross-city journey involves one, sometimes two.

What surprises first-time visitors is how much correspondences vary in length. Some are a short walk across a platform. Others, particularly at stations that were extended or joined together over different decades, involve genuinely long corridors, several minutes of walking underground, staircases, and sometimes a second ticket gate to pass through on the way. None of this is signposted as a warning, so the only way to plan for it is to expect that a “change here” on the map can mean anything from thirty seconds to five minutes, and to build a little slack into a schedule when a change is involved, especially if you are catching a show, a reserved museum slot, or a train at a station like Paris Charles de Gaulle (CDG).

Compared with many other capital city networks, Paris also has an unusually high density of stations. It is common to find two stations on different lines within a few hundred metres of each other but with no direct corridor between them, meaning the “correct” way to change lines is to exit onto the street and walk rather than following signage underground. This isn’t a flaw in the system so much as a reflection of how old and how tightly built the network is; it was extended piece by piece over more than a century, into a city that was already dense before the first line opened.

Reading a line: color, number, and the two ends that define it

Every line is defined by its two termini. Learning the name of the terminus in the direction you want to travel is the single most useful piece of information on the whole map, more useful in practice than the line’s colour or number, because that is what appears on the platform signage and on the front of the train itself.

A simple way to prepare before a trip: look up your destination station, trace the coloured line back toward where you are starting, and note the name of the station at the far end of the line in that direction. That’s the word you’re looking for on the platform. If the correct terminus in your direction isn’t posted anywhere near you, you’re very likely on the wrong platform, and it’s worth stepping back to check the local line map before boarding.

Because so many lines run the full width or length of the city, a single line will often pass close to several of the neighbourhoods covered on this site without ever leaving Paris intra-muros. A line linking areas near the Louvre and Tuileries can continue on toward the Champs-Elysees and Opera district, or toward the Latin Quarter and Saint-Germain, all on the same numbered line, all inside the same city boundary. Recognising this pattern early saves a lot of unnecessary line changes: check whether your start and end points sit on the same line before assuming you need a correspondence at all.

The spiral of arrondissements, and why it matters for reading the map

Paris is organised into 20 arrondissements, numbered from the 1st through the 20th and arranged in a clockwise spiral outward from the centre near the Ile de la Cite and Notre-Dame. Postal codes follow the same logic, running from 75001 in the centre to 75020 at the outer edge. The Seine splits the city into the Rive Droite to the north and the Rive Gauche to the south, and both sides carry arrondissements in the spiral sequence.

Understanding the spiral helps explain something that otherwise looks strange on the metro map: a single line frequently passes through three, four, or more arrondissements in one continuous run, all while staying entirely inside Paris. That isn’t the network stretching out to distant suburbs; it’s simply how compact and tightly wound the arrondissement layout is. A line connecting a station near the Eiffel Tower and Trocadero to one near Champs-Elysees and Opera can look, on paper, like a long haul between two different districts, when in practice it’s a short hop within the same city core. For more detail on how the numbering works and what each arrondissement covers, the dedicated guide on Paris arrondissements walks through the sequence in full.

What sets the Paris metro apart from other capital networks

Two things distinguish the Paris metro from equivalent systems in many other major cities. The first is station density: stops are close together, closer than in cities built more recently or over a larger footprint, which means less walking to reach a platform but also that short-looking hops on the map are sometimes genuinely faster covered on foot above ground, especially across a single arrondissement.

The second is the unevenness of correspondence walks described above. A rider used to a newer, more uniformly engineered system may expect every line change to take roughly the same amount of time. In Paris, that assumption doesn’t hold, because the network was assembled over more than a hundred years, station by station, rather than designed as a single grid from the outset. Neither trait makes the network hard to use, but both are worth knowing before your first ride, so a short-looking connection on the map doesn’t turn into an unplanned sprint.

a guided underground walk that explains the network’s history and hidden corners from the inside is one way to get comfortable with the system quickly, with someone else doing the navigating on the first pass while you watch how the correspondences and signage actually work in practice.

Pickpockets and line 1: what to actually watch for

The metro is used by millions of people a day and is not, on the whole, dangerous. But crowding attracts pickpockets, and line 1, which runs close to some of the busiest sightseeing stretches in the city, sees a disproportionate share of reported incidents during peak hours and in packed carriages. This isn’t a reason to avoid the line, since it’s one of the most useful for reaching central sights, but it is a reason to keep bags zipped and worn to the front, phones out of back pockets, and a bit of extra attention during rush hour or when a carriage is standing-room only. The same caution is worth applying near crowded platforms generally, not line 1 alone. A fuller rundown of common scams and how to avoid them, on the metro and elsewhere in the city, is covered on the scams and pickpockets guide, and general safety context is covered on the is Paris safe for tourists page.

What this page deliberately leaves out

This page is about reading the metro network and finding your way through it, nothing more. A few related topics are covered elsewhere on purpose, so this guide doesn’t repeat information that’s already handled properly on its own page:

• Buying a ticket or working out whether a Navigo Easy card or a weekly Navigo pass makes sense for your trip is covered on the metro tickets and Navigo guide, including how the current single-ticket system works.
• The RER and suburban trains, which look similar to the metro on the combined map but run on a different system with different rules, are covered on the RER and trains guide. If you’re heading toward the edge of the region or one of the airports, that’s the page to read next.
• Taxis and ride-hailing as an alternative or backup to the metro, including when they make more sense than a multi-line connection, are covered on the taxis and ride-hailing guide.

Reading the map before you travel

A few habits make the whole system click faster than any amount of reading:

Habit	Why it helps
Note the terminus name in your direction before you reach the platform	Platform signage uses terminus names, not compass directions
Check whether start and end points share a line	The spiral of arrondissements means one line often covers more ground than expected
Treat correspondences as variable in length	Some are a short crossing, others a genuine walk through connecting corridors
Keep bags zipped and visible in crowded carriages, especially on line 1	Crowding, not the network itself, is what pickpockets rely on
Compare a short hop on the map with walking above ground	Station density means some trips are faster on foot

None of this requires memorising the whole map. Most regular riders navigate the network by holding two or three termini in mind at a time and reading the local platform map for the rest. A first visit to central neighbourhoods like the Ile de la Cite and Notre-Dame or the Latin Quarter and Saint-Germain is a reasonable place to practise this, since several lines converge nearby and the walk between stations is short enough to double-check on foot if a platform doesn’t match what you expected.

If you’d rather have someone else handle the navigating on your first day, options range from a walking tour led by a local guide who can point out which line connects to which neighbourhood as you go, to a slower-paced guided tour of the city in a vintage Citroen 2CV that covers ground above street level while you get your bearings before relying on the metro alone.

Questions readers ask about the Paris metro

How many metro lines does Paris have?

Île-de-France Mobilités operates 16 numbered metro lines across Paris, each with its own color on the map, plus separate RER, tram, and bus networks that connect at many of the same stations.

How do I know which direction to take on the platform?

Paris platforms are signed by the line’s terminus station in that direction, not by a compass point. Find your destination on the map, follow the color to the end of the line, and take the platform marked with that terminus name.

Why are Paris metro stations so close together?

The network was built densely across a compact city, so many stations sit a few hundred metres apart. It means less walking to reach a platform, but it also means a short trip on the map can sometimes be faster to walk above ground.

Why do some line changes involve a long walk?

Several interchange stations were extended or connected after their original construction, so the corridors between platforms can run well beyond the length of the platforms themselves, sometimes several minutes on foot.

Does the metro reach the airports?

The metro network itself stays within Paris and its inner edge; getting to Paris Charles de Gaulle (CDG), Paris Orly (ORY), or Paris Beauvais (BVA) is covered separately, since it involves RER lines, a dedicated metro extension, or a shuttle bus rather than the core metro map.

Is the Paris metro safe to use?

The metro is used daily by millions of residents and is not inherently dangerous, but pickpockets do target crowded carriages and platforms, line 1 in particular during busy periods, so keeping bags closed and in sight is worth the habit.

Do metro lines follow the arrondissements?

No single line stays inside one arrondissement. Because the 20 arrondissements spiral outward from the centre, most lines cross several of them in a single run while staying entirely within Paris.

Where can I buy tickets or find out about the Navigo pass?

Ticket types, the Navigo Easy card, and the weekly Navigo pass are covered on a dedicated ticketing guide; this page focuses only on reading the network and finding your way through it.