What DIN Size Is My Car? How to Measure
A hands-on way to figure out whether your dash takes a single DIN, double DIN, or something oddly shaped in between.
Key takeaways
- DIN is a height standard: single DIN is about 2 inches tall, double DIN is roughly 4 inches.
- Pop the old stereo or trim panel and measure the opening height with a ruler before you buy anything.
- Some cars have a large odd-shaped bezel that hides a standard DIN cage behind it.
- A dash kit fills the gap so a standard stereo sits flush in a non-standard opening.
You found a head unit you love. Wireless CarPlay, a bright screen, real buttons where you want them. Then a small doubt creeps in: is that thing even going to fit the hole in your dash?
That question trips up more first-time buyers than any wiring problem ever does. A stereo that is an inch too tall does not go in no matter how much you push. So before you spend $200 or $400, you want a straight answer to a simple question.
What DIN size is my car? Let me walk you through how to find out for certain, using nothing fancier than a ruler and ten minutes in the driveway.
What DIN actually means (and why it is only about height)
DIN is a German standards body, and back in 1984 they set a size for car radios. That size stuck, and now the whole industry builds to it. When people say DIN, they are really talking about the height and width of the stereo body.
The width is basically fixed. Almost every aftermarket unit is about 7 inches wide, so you rarely worry about it. Height is the number that changes.
A single DIN slot is about 2 inches tall (50mm to be exact). A double DIN is that doubled, roughly 4 inches (100mm). That is the whole idea. One is a short letterbox slot, the other is a tall square-ish window.
Good to know
Width and mounting depth are separate from DIN. A unit can be double DIN tall but still need 6 or 7 inches of depth behind the dash. Always check clearance behind the opening too, especially in trucks with thick dashes.
The fastest check: measure the opening height
Forget lookup charts for a second. The most reliable answer comes from a ruler against your actual dash. Cars get facelifts, trims differ, and a chart can steer you wrong.
Here is the short version. Get the old stereo or the trim bezel out of the way, then measure the height of the bare opening.
- Turn the key off and pop the trim panel or slide the old radio out.
- Measure the height of the metal opening, not the plastic trim ring.
- Around 2 inches (50mm) means single DIN.
- Around 4 inches (100mm) means double DIN.
- Note the depth behind the dash while you are in there.
The plastic trim around the radio can make an opening look bigger than the real slot behind it. That is why you measure the metal cage, not the cosmetic surround. I have watched a friend order a double DIN for what turned out to be a single DIN car because he measured the shiny bezel.
Watch out
A big rectangular screen area does not mean double DIN. Plenty of cars have a wide bezel with climate vents and controls molded in, hiding a normal single DIN radio in the middle. Measure the radio slot itself.
How to get the old stereo out without breaking anything
You do not always have to remove the radio. Sometimes popping the surrounding trim panel gives you a clear view of the opening. On many Hondas and Toyotas, that panel just clips in and pulls off with hand pressure or a plastic pry tool.
If you do need the radio out, most factory units use one of two systems. European cars (VW, some BMW and Ford models) often use spring clips: you push two U-shaped keys into slots on the face, and the radio releases. Asian and American cars usually have screws hidden behind the trim panel.
A cheap plastic trim removal kit runs about $10 and saves your dash from screwdriver scars. That is money well spent even if you only do this once.
Pro tip
Snap a photo of the plugs and brackets before anything comes fully loose. When you go to install the new unit weeks later, that picture tells you exactly what went where.
Reading the numbers: a quick size reference
Once you have a height measurement, this table sorts out what you are dealing with. Measurements are approximate because trim tolerances vary a little between cars.
| Opening height | Size name | What fits |
|---|---|---|
| About 2 in (50mm) | Single DIN | Slim stereos, flip-out screens, single DIN CarPlay units |
| About 3 in (75mm) | 1.5 DIN | Odd factory sizes; usually needs a dash kit to run standard gear |
| About 4 in (100mm) | Double DIN | Most touchscreen CarPlay head units |
| Wide, odd shape | Proprietary | Needs a brand-specific dash kit to accept a standard unit |
That 1.5 DIN oddity shows up on some older Chryslers and a few Japanese models. It is not a size you buy stereos in. You either run a single DIN with a pocket underneath, or fit a dash kit that opens the space up to double DIN.
When your dash is not a clean DIN size
Modern cars love to bury the radio in a curvy plastic dash that looks nothing like a neat rectangle. Newer Fords, GM trucks, and a lot of German cars fall here. The opening might be a strange trapezoid, or the factory screen might be wider than any standard stereo.
The fix is a dash kit, sometimes called a mounting kit or install kit. It is a molded plastic frame that fills the gap between your weird factory shape and a standard single or double DIN stereo. You buy one made specifically for your year, make, and model.
Companies like Metra and Scosche make these for thousands of vehicles. A kit typically costs $20 to $60. Behind that pretty plastic face, a hidden metal cage holds a completely standard stereo, so the DIN question still matters even when the dash looks exotic.
The dash kit turns a one-off factory opening into a normal DIN slot. Match the kit to your exact car and the stereo choice opens right up.
If your car has the factory screen integrated with climate and settings, look closely before ordering. Some vehicles need an extra interface module to keep those functions working. That is a separate topic, but worth flagging so the size question does not fool you into thinking the swap is simple.
Double-check against your specific car
Your ruler is the boss, but a second opinion helps. Plenty of sellers have a fitment lookup where you enter your year, make, and model and it tells you single or double DIN plus the exact dash kit part number.
Cross-reference two things. Your measured height should agree with what the lookup says. If they disagree, trust the ruler and figure out why, because you might have a facelift year or a trim the chart missed.
The broader standards behind all this are worth a glance if you like the background. The CarPlay overview covers what the software side needs, and Apple keeps a plain-language page on CarPlay support if you want to confirm your phone will play nice once the unit is in.
What to do next
Grab a ruler, pop that trim panel, and measure the metal opening today. Write the height on your phone along with a photo of the dash. In two minutes you will know whether you are shopping single DIN or double DIN, and that decides half your buying choices right there.
From there, note your car’s year, make, and model, and look up the matching dash kit part number. With those three pieces (measured height, car details, dash kit number) you can shop any stereo with confidence instead of guessing. No returns, no cursing in the driveway with a unit that will not slide home.
Measure first, buy second. That order saves money and a weekend every single time.
Frequently asked questions
Sometimes. If the trim panel around the radio pops off easily, you can measure the metal opening without pulling the whole unit. Just make sure you measure the actual radio slot and not the wider plastic bezel, since that surround often makes the opening look taller than it really is.
No, and this fools a lot of people. Many cars pair a small single DIN radio with a wide plastic bezel that houses vents or climate controls. The screen area looks large, but the stereo behind it is standard single DIN. Always measure the radio opening itself.
A 1.5 DIN opening is roughly 3 inches tall and shows up on some older Chrysler and Japanese cars. You cannot buy a 1.5 DIN stereo. You either fit a single DIN unit with a storage pocket underneath, or use a dash kit that expands the space to accept a double DIN head unit.
Yes, and people forget it. DIN covers height and width, but a unit still needs room behind the dash for its body and wiring plugs. Trucks and older cars can have shallow cavities or ductwork in the way. Measure at least 6 to 7 inches of depth for most touchscreen units.
Most dash kits run $20 to $60 depending on your vehicle. Brands like Metra and Scosche make model-specific kits that fill the gap so a standard stereo sits flush. Buy the one made for your exact year, make, and model, not a universal one.
Keep reading
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