Road course · Selangor, Malaysia

Sepang International Circuit

Sepang International Circuit is a road course in Selangor, Malaysia. OpenStreetMap maps 4 layouts here, the longest 3.44 mi (5.54 km). Below: the map, every corner with a computed line, the elevation, and where to stay and eat.

5.54
Kilometres
13
Corners
—
Ft of elevation

01Track map

Sepang track map

C1C2C3C4C5C6C7C8C9C10C11C12C13S/FN250 m
LayoutOther loopsPit laneS/F Mapped · unverified

© OpenStreetMap contributorsODbL 1.0

Full circuit

Name inferred by TRACK from the mapped loops, not an official layout name.

Mapped length
3.44mi
5.54 km
Direction
Clockwise
From OSM one-way tagging.
Start/finish line
Mapped · unverified
Placed by OpenStreetMap mappers and not verified on site. TRACK asks you to confirm or move it before timing laps here, when you’re stopped.
Published length (cross-check)
3.44 mi · mapped loop agrees within 3%
Corners
13
Inferred from curvature, not official turn numbers
Sectors
3
Estimated, near each third of the lap

Source geometry: OpenStreetMap ↗. Something wrong? Fixing it in OpenStreetMap improves it for everyone.

02Overview

What Sepang is like to drive.

The full circuit layout at Sepang is 3.45 miles with 13 corners worth setting up for. A generic track-day car in our model brakes hard 12 times a lap and is at full throttle for about 46% of the distance; the longest straight runs roughly 2133 ft.

6 of the corners are slow (under 50 mph in the model), 1 are fast (over 75 mph). There are hairpins where exit speed matters more than entry. The corner notes below come from the mapped geometry, not from local knowledge; we’ll add a researched guide for Sepang later.

03Lap at a glance

Where the speed is, and where the hills are.

Length
3.45mi
Elevation range
—
Steepest grade
—
Braking zones
12model
Full throttle
46% model
Longest straight
2133ft
C1C2C3C4C5C6C7C8C9C10C11C12C13MPH13535S/F0.5 mi1.0 mi1.5 mi2.0 mi2.5 mi3.0 mi
Model speed (generic track-day car)

The speed trace is a model, not a real lap: a generic track-day car (about 1.1 g of cornering grip, 1 g braking, 150 W/kg) driven on the computed line through an assumed 12 m wide track. Use it to see where the braking zones and flat-out sections are, not to predict your speeds. Elevation data for this track isn’t loaded yet.

04Corner by corner

The corners at Sepang.

TRACK’s own corner numbering (C1, C2…), found from the curvature of the mapped centerline. It isn’t the official turn numbering. Each diagram shows the computed line: the minimum-curvature path through an assumed 12 m wide track. It’s a geometric starting point. Your instructor’s line comes first.

  1. APEXEXITBRAKE
    C1

    Pangkor Laut Chicane

    ↰ LeftmediumchicaneTRACK numbering

    A medium left-hand chicane that turns about 265°, tightening to a radius of roughly 19 m (62 ft). The model car brakes for about 180 m (591 ft), from 135 to 49 mph. The computed line turns in from the right side, takes an early apex, about 140 m before the geometric apex, and lets the car run out to the right on exit.

    Turns
    265° left
    Tightest radius
    19 m
    Model speed
    135 → 49 mph
    Braking (model)
    180 m
    Grade
    —
  2. APEXTURN-INEXITBRAKE
    C2

    Pangkor Laut Chicane

    ↰ LeftslowchicaneTRACK numbering

    A slow left-hand chicane that turns about 112°, tightening to a radius of roughly 19 m (62 ft). The model car brakes for about 40 m (131 ft), from 59 to 36 mph. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.

    Turns
    112° left
    Tightest radius
    19 m
    Model speed
    59 → 36 mph
    Braking (model)
    40 m
    Grade
    —
  3. APEXTURN-INEXIT
    C3

    3

    ↱ RightslowchicaneTRACK numbering

    A slow right-hand chicane that turns about 92°, tightening to a radius of roughly 53 m (174 ft). The model car barely brakes here, carrying about 36 mph: a lift or a confident throttle balance. The computed line turns in from the left side, takes an early apex, about 35 m before the geometric apex, and lets the car run out to the left on exit.

    Turns
    92° right
    Tightest radius
    53 m
    Model speed
    ≈ 36 mph
    Braking (model)
    Lift / none
    Grade
    —
  4. APEXTURN-INEXITBRAKE
    C4

    Langkawi Curve

    ↱ RightslowcornerTRACK numbering

    A slow right-hand corner that turns about 106°, tightening to a radius of roughly 17 m (56 ft). The model car brakes for about 160 m (525 ft), from 122 to 40 mph. The computed line turns in from the left side, takes an apex close to the geometric apex, and lets the car run out to the left on exit.

    Turns
    106° right
    Tightest radius
    17 m
    Model speed
    122 → 40 mph
    Braking (model)
    160 m
    Grade
    —
  5. APEXTURN-INEXITBRAKE
    C5

    Genting Curve

    ↰ LeftfastessesTRACK numbering

    A fast left-hand esses that turns about 114°, tightening to a radius of roughly 43 m (141 ft). The model car brakes for about 30 m (98 ft), from 89 to 77 mph. The computed line turns in from the right side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the right on exit.

    Turns
    114° left
    Tightest radius
    43 m
    Model speed
    89 → 77 mph
    Braking (model)
    30 m
    Grade
    —
  6. APEXTURN-INEXITBRAKE
    C6

    Genting Curve

    ↱ RightmediumessesTRACK numbering

    A medium right-hand esses that turns about 82°, tightening to a radius of roughly 46 m (151 ft). The model car brakes for about 100 m (328 ft), from 89 to 71 mph. The computed line turns in from the left side, takes an early apex, about 70 m before the geometric apex, and lets the car run out to the left on exit.

    Turns
    82° right
    Tightest radius
    46 m
    Model speed
    89 → 71 mph
    Braking (model)
    100 m
    Grade
    —
  7. APEXTURN-INEXITBRAKE
    C7

    KLIA Curve

    ↱ RightmediumcornerTRACK numbering

    A medium right-hand corner that turns about 63°, tightening to a radius of roughly 23 m (75 ft). The model car brakes for about 110 m (361 ft), from 108 to 55 mph. The computed line turns in from the left side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the left on exit.

    Turns
    63° right
    Tightest radius
    23 m
    Model speed
    108 → 55 mph
    Braking (model)
    110 m
    Grade
    —
  8. APEXTURN-INEXITBRAKE
    C8

    KLIA Curve

    ↱ RightmediumcornerTRACK numbering

    A medium right-hand corner that turns about 64°, tightening to a radius of roughly 25 m (82 ft). The model car brakes for about 45 m (148 ft), from 74 to 55 mph. The computed line turns in from the left side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the left on exit.

    Turns
    64° right
    Tightest radius
    25 m
    Model speed
    74 → 55 mph
    Braking (model)
    45 m
    Grade
    —
  9. APEXTURN-INEXITBRAKE
    C9

    Berjaya Tioman Corner

    ↰ LeftslowhairpinTRACK numbering

    A slow left-hand hairpin that turns about 141°, tightening to a radius of roughly 16 m (52 ft). The model car brakes for about 145 m (476 ft), from 113 to 35 mph. The computed line turns in from the right side, takes an apex close to the geometric apex, and lets the car run out to the right on exit.

    Turns
    141° left
    Tightest radius
    16 m
    Model speed
    113 → 35 mph
    Braking (model)
    145 m
    Grade
    —
  10. APEXTURN-INEXITBRAKE
    C10

    Kenyir Lake Corner

    ↱ RightmediumhairpinTRACK numbering

    A medium right-hand hairpin that turns about 188°, tightening to a radius of roughly 29 m (95 ft). The model car brakes for about 95 m (312 ft), from 90 to 51 mph. The computed line turns in from the left side, takes an early apex, about 5 m before the geometric apex, and lets the car run out to the left on exit.

    Turns
    188° right
    Tightest radius
    29 m
    Model speed
    90 → 51 mph
    Braking (model)
    95 m
    Grade
    —
  11. APEXTURN-INEXITBRAKE
    C11

    12

    ↰ LeftmediumcornerTRACK numbering

    A medium left-hand corner that turns about 67°, tightening to a radius of roughly 33 m (108 ft). The model car brakes for about 100 m (328 ft), from 101 to 62 mph. The computed line turns in from the right side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the right on exit.

    Turns
    67° left
    Tightest radius
    33 m
    Model speed
    101 → 62 mph
    Braking (model)
    100 m
    Grade
    —
  12. APEXTURN-INEXITBRAKE
    C12

    Sunway Lagoon Corner

    ↱ RightslowhairpinTRACK numbering

    A slow right-hand hairpin that turns about 197°, tightening to a radius of roughly 27 m (89 ft). The model car brakes for about 160 m (525 ft), from 92 to 47 mph. The computed line turns in from the left side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the left on exit.

    Turns
    197° right
    Tightest radius
    27 m
    Model speed
    92 → 47 mph
    Braking (model)
    160 m
    Grade
    —
  13. APEXTURN-INEXITBRAKE
    C13

    15

    ↰ LeftslowhairpinTRACK numbering

    A slow left-hand hairpin that turns about 173°, tightening to a radius of roughly 23 m (75 ft). The model car brakes for about 200 m (656 ft), from 133 to 44 mph. The computed line turns in from the right side, takes a late apex, about 5 m after the corner’s geometric apex, and lets the car run out to the right on exit.

    Turns
    173° left
    Tightest radius
    23 m
    Model speed
    133 → 44 mph
    Braking (model)
    200 m
    Grade
    —

05Configurations

Every mapped loop at Sepang.

TRACK finds each closed loop in the OpenStreetMap raceway network. Named layouts come from OSM circuit relations; the rest are named by length, and some may be combinations the venue never runs. Your first session confirms which one you drove.

  • N250 m

    Full circuit

    3.44 mi

    5.54 kmClockwiseS/F Mapped · unverifiedName inferred

  • N250 m

    North Track

    1.73 mi

    2.79 kmClockwiseS/F Mapped · unverified

  • N250 m

    Layout C · 2.6 km

    1.62 mi

    2.61 kmClockwiseS/F EstimatedName inferred

  • N100 m

    Layout D · 1.5 km

    0.93 mi

    1.50 kmDirection unknownS/F EstimatedName inferred

© OpenStreetMap contributorsODbL 1.0

06Time it with TRACK

Drive Sepang. TRACK knows where you are.

No setup and no transponder. Start a session in the paddock and TRACK recognises Sepang and the layout from your GPS trace, then times every lap and sector with a live delta to your best.

iPhone · betaAndroid · planned
  1. 1DetectTRACK matches your first few hundred metres against every mapped layout at Sepang, including shared pavement between configurations.
  2. 2Confirm the lineThe start/finish line here is mapped · unverified. When you’re stopped, TRACK shows it on the map: accept it or tap to move it. You’re never asked while driving.
  3. 3Laps, timed retroactivelyLaps you drove before confirming are timed from the recorded trace, so you don’t lose your first session.
  4. 4Go furtherSync a GoPro for video with telemetry and let TRACK Engineer point out where the time is. External 10–25 Hz GPS receivers for tighter sectors are awaiting hardware validation.
  5. Venue and layout detection is tested on simulated drives over real OpenStreetMap circuits, not yet in a real car. Compatible GPS receivers

07Plan your trip

Getting there, staying, eating.

Nearby places for Sepang haven’t been loaded yet.

FAQ

Sepang, answered.

How long is Sepang?

OpenStreetMap maps 4 closed loops at Sepang International Circuit, from 0.93 mi to 3.44 mi (5.54 km). These are mapped centerline lengths; the venue’s published figures can differ slightly. The published length we cross-check against is 3.44 mi.

Which direction does Sepang run?

The main mapped layout runs clockwise, from one-way tagging in OpenStreetMap. Check the event’s driver briefing: some venues run reverse-direction days.

Can I time laps at Sepang with my phone?

Yes, with the TRACK iPhone app (beta). It recognises Sepang and the layout you’re driving from GPS, then times laps and sectors. A phone’s GPS is good for lap times; an external 10–25 Hz receiver tightens sector splits.

Where is the start/finish line at Sepang?

The line TRACK uses comes from a start/finish point placed in OpenStreetMap. It isn’t verified on site, so the app asks you to confirm or move it before timing your first session here.

How do I find track days at Sepang?

Clubs and organizers list HPDE, track days and club races on MotorsportReg. The venue’s own calendar (also linked) lists its events too. TRACK doesn’t list events itself.

Where can I stay near Sepang?

This page lists hotels, campgrounds, restaurants, fuel and parts stores near Sepang from OpenStreetMap, with straight-line distances. Book early for big event weekends.

Track geometry and nearby places: © OpenStreetMap contributors, available under the Open Database License 1.0 (via the TRACK Atlas, snapshot 2026-10-17). Elevation: USGS 3DEP (public domain). Lengths are mapped centerlines, not official figures. The computed line and speed trace are a model. No start/finish line has been verified on site.

TRACK is not affiliated with or endorsed by Sepang International Circuit, MotorsportReg or any business listed here. The venue name identifies the location only and belongs to its owner. TRACK shows no lap records or official results for this venue. Driving advice is general: your instructor, the event’s rules and the venue’s rules come first.