Free Parallel Parking Trainer & Spot Size Checker

To parallel park, pull up beside the car in front of the space, reverse with the wheel turned fully toward the curb to about 45 degrees, then turn fully away from the curb as your car swings in, and stop within 12 in of the curb. This parallel parking trainer shows those steps for your car, checks whether a space is big enough, and lets you practice in a simulator.

Pick your car size, measure or pace off the gap, and follow the animated walkthrough. Everything runs privately in your browser. Nothing is uploaded or stored on a server.

1. Pick your car

Every section below uses this car's size and turning circle.

Typical values for this size class. Edit any field to enter your own car.

Units
Rear overhang
3 ft 8 in
Turning radius (rear axle)
14 ft
Max steering angle
33°
Track width (est.)
5 ft 3 in

Type feet and inches like 16 ft 1 in, decimal feet like 16.1, or inches like 193 in.

2. Will my car fit? Parallel parking space checker

Measure the gap between the two parked cars' bumpers, or estimate it in car lengths or steps. Rule of thumb: look for a space about 1.5 car lengths (24 ft 2 in for your car) when you are learning.

How do you want to enter the gap?

Like 20 ft or 19 ft 6 in.

Doable

Enough room with care, but shorter than one smooth reverse maneuver, so plan on a correction or two.

Gap
20 ft (6.10 m)
Car length
16 ft 1 in (4.90 m)
Extra room
3 ft 11 in (24%)
Geometric minimum
21 ft 8 in
  • Easy: 22 ft 1 in or more. Doable: 19 ft 1 in or more.
  • One smooth reverse move needs 21 ft 8 in, more than the doable line, so a midsize sedan in a doable space needs a correction or two.
Top-down view: 20 ft gap with your 16 ft 1 in carDoable: a 20 ft gap for a midsize sedan (16 ft 1 in long). That is 3 ft 11 in of extra room (24% of car length). Geometric minimum for one reverse maneuver: 21 ft 8 in.Gap 20 ftCurb

To scale. Parked cars are typical midsize sedans.

3. How to parallel park: step-by-step walkthrough

The reference-point method for your car, animated to scale. Every position comes from the same steering model as practice mode.

Space size
Step 1: Pull up alongside the front carSignal, then stop next to the car in front of the space, about 2 to 3 ft away, with your rear bumper even with its rear bumper. Gap 20 ft 7 in.Curb

Step 1 of 7

4. Parallel parking practice mode

Park your car between the two parked cars without touching them or the curb. Your car is drawn to scale and steers like the real thing.

Space size

Click or tap the parking area, then hold Up or W to drive forward and Down or S to reverse. Hold Left/Right or A/D to turn the wheel; it stays where you leave it. Press C or Space to straighten the wheel and Enter when you are done. On a phone, hold the buttons below.

Practice parking areaYour car is 112 in from the curb at 0 degrees.Curb

Live readout

Steering
Straight
Angle to curb
0.0°
Curb (tires)
Not in the space
Front / rear room
-
Direction changes
0
Distance driven
0 in
Time
0.0 s
Target
≤ 12 in from curb

Park, then press Done. You are graded on distance from the curb (target 12 in; most state driver manuals ask for 12 to 18 in), angle to the curb, room in front and behind, direction changes, and time.

Practice cone layout

A typical driving-test style setup for practicing in an empty lot; check your state's driver handbook for the exact test. Requirements vary by state. Many states test parallel parking between poles or cones roughly 20 to 25 ft apart, with a limited number of attempts and points lost for hitting the curb or cones.

Box length = car length (16 ft 1 in) + this. Default 6 ft.

From the curb line out. Default 8 ft.

Measurements

  • Box length: 22 ft 1 in (6.73 m)
  • Box width: 8 ft (2.44 m)
  • Diagonal: 23 ft 6 in (7.16 m) (both diagonals equal = square box)
  • Start mark: 10 ft 6 in out from the curb line, level with the front cones
  1. Back, curb side: 0 in along the curb, 0 in out
  2. Back, street side: 0 in along the curb, 8 ft out
  3. Front, curb side: 22 ft 1 in along the curb, 0 in out
  4. Front, street side: 22 ft 1 in along the curb, 8 ft out
  5. Start mark (stop here, rear bumper even with it): 22 ft 1 in along the curb, 10 ft 6 in out
Cone layout: 22 ft 1 in by 8 ft practice boxCurb line1234522 ft 1 in8 ft

How we calculate it

  • Verdict: easy when the gap is at least your car length + 6 ft (1.8 m), doable at car length + 3 ft (0.9 m), and tight down to the larger of the single-maneuver minimum and car length + 1.5 ft. Anything smaller won't fit.
  • Single-maneuver minimum: on full lock your car turns around a point R from the rear axle, where R comes from the curb-to-curb turning circle D, wheelbase L, and track t: (D/2)² = (R + t/2)² + L². The outer front corner sweeps a circle of radius r = √((R + w/2)² + (L + front overhang)²), so the smallest space for one smooth reverse move is rear overhang + √(r² − (R − w/2)²), following Rebecca Hoyle's "The Mathematics of Parallel Parking". For most cars that is about car length + 5 to 6.5 ft, so spaces between car length + 3 ft and that minimum need a correction or two.
  • Walkthrough and practice: both use a kinematic bicycle model of your car with the steering limit set by its turning circle. The walkthrough path is planned so it never touches the parked cars or the curb. The parked cars are typical midsize sedans 8 in from the curb.
  • Car sizes: presets are typical values for each size class, not any specific model. Check your owner's manual for your car's exact length, wheelbase, and turning circle.

Parallel parking tips

  • Signal first

    Turn on your signal before you stop beside the front car so drivers behind you know you are parking.

  • Check mirrors and your blind spot

    Look in all three mirrors and over your shoulder before you reverse, and again before the front of your car swings out into the lane.

  • Go slow

    Creep at walking speed or slower. You can turn the wheel faster than the car moves, which keeps every move small and correctable.

  • Use the curb in the passenger mirror

    Tilt the passenger mirror down so you can see the curb and your rear tire. When the curb sits low in the mirror, you are close.

  • Correct instead of forcing it

    If you are too far out or angled, pull forward with the wheel toward the curb, then back with it turned away. Two small corrections beat one bump.

  • Downhill: turn toward the curb

    Parking facing downhill, turn your front wheels toward the curb so the car rolls into it, not into traffic.

  • Uphill with a curb: turn away

    Facing uphill next to a curb, turn your wheels away from the curb and let the car roll back gently until a tire rests against it.

  • No curb: turn toward the edge

    On a hill without a curb, uphill or downhill, turn your wheels toward the edge of the road so the car rolls away from traffic.

How to parallel park, step by step

  1. Pull up alongside the front car

    Signal, check your mirrors, and stop next to the car in front of the space, about 2 to 3 ft (0.6 to 0.9 m) away, with your rear bumper even with its rear bumper.

  2. Reverse until your rear axle passes its rear bumper

    Back up slowly with the wheel straight until your rear axle passes the other car's rear bumper.

  3. Turn the wheel fully toward the curb

    Stop and turn the steering wheel all the way toward the curb.

  4. Reverse to about a 45-degree angle

    Back up slowly until your car points about 45 degrees to the curb.

  5. Straighten the wheel and keep reversing

    Center the wheel and reverse straight back until your front bumper clears the other car's rear bumper.

  6. Turn fully away from the curb

    Turn the wheel all the way away from the curb and keep reversing slowly as the front of your car swings into the space.

  7. Straighten and center

    Straighten the wheel and pull forward to center the car, within 12 in (30 cm) of the curb and parallel to it.

Parallel parking FAQ

How do you parallel park step by step?

Signal and pull up alongside the car in front of the space, about 2 to 3 ft away, with your rear bumpers lined up. Reverse until your rear axle passes its rear bumper, turn the wheel fully toward the curb, and back up to about a 45-degree angle. Straighten the wheel and reverse until your front bumper clears the other car, then turn fully away from the curb as the nose swings in. Straighten, pull forward to center, and stop within 12 in of the curb.

How much space do you need to parallel park?

Look for a space about 1.5 car lengths long when you are learning, about 24 ft for a typical midsize sedan. Car length plus 6 ft (about 22 ft for a midsize sedan) is easy, and car length plus 3 ft (about 19 ft) is doable with a correction or two. Parking in one smooth reverse move takes roughly car length plus 5 to 6.5 ft, depending on the car's turning circle.

How far from the curb should you parallel park?

Aim for 12 in (30 cm) or less between your tires and the curb. Most state driver manuals ask for no more than 12 to 18 in, so check your state's driver handbook for the exact limit. Keep your car parallel to the curb and leave room in front and behind so the other cars can get out.

What are parallel parking test dimensions?

Requirements vary by state. Many states test parallel parking between poles or cones roughly 20 to 25 ft apart, with a limited number of attempts and points lost for hitting the curb or cones. Check your state's driver handbook for the exact test. For practice, a box about car length plus 6 ft long and 8 ft (2.4 m) wide is a typical driving-test style setup.

How do you practice parallel parking without a car in front?

Set up cones, empty boxes, or trash cans in an empty parking lot to mark a space about car length plus 6 ft long and 8 ft wide, with a cone where the front car's rear bumper would be. Pull up beside that cone and follow the same steps. You can also learn the moves first in the practice simulator on this page, which uses your car's size and turning circle.

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