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Will It Fit? PC Case Clearance Checker
Check your graphics card, cooler, memory and power supply against your case before you buy. Enter the numbers from each product's spec sheet, in millimetres. Leave a section empty to skip it.
Graphics card length
—CPU cooler height
—RAM under the cooler
—Power supply length
—How to read the results
- Fits: 20 mm or more to spare.
- Tight: fits with under 20 mm to spare. Plan cable routing carefully.
- Won't fit: the part is larger than the space available.
These margins are rules of thumb, not official limits. Your result is only as accurate as the numbers you enter, so use the exact model's spec sheet. Some cases list a separate GPU length for when a front radiator or drive cage is installed. If yours does, enter that figure and choose "Nothing extra".
Frequently asked questions
Where do I find these measurements?
Every case maker lists maximum GPU length, CPU cooler height and PSU length on the product page or in the manual. Graphics card, cooler and PSU makers list their dimensions too. Always use the exact model's numbers, because versions of the same card can differ by 30 mm or more.
Why does a front radiator matter?
A radiator and its fans sit between the front of the case and the graphics card. A radiator is often around 27 mm thick and a fan around 25 mm, so together they can take 50 mm or more away from your GPU space. Some cases list a separate GPU length for when a front radiator is fitted, so check for that first.
How much spare room should I leave?
Treat these as rules of thumb: 20 mm or more is comfortable, under 20 mm is a tight fit that needs careful cable routing, and a negative number means it will not fit.
What about GPU power cable room?
The newer 12V-2x6 (12VHPWR) power connectors should not be bent right at the plug. Seasonic recommends about 35 mm of straight cable before a bend, and Corsair's guidance gives figures between 30 and 40 mm. On a tall card in a narrow case, check that the side panel leaves room for this.
What about tall RAM under a big air cooler?
Large tower coolers can hang over the memory slots. Cooler makers often list a RAM height limit. If your memory is taller, you may need lower-profile RAM or to raise the front fan on the cooler, which makes the cooler taller.
Planning the rest of your build? Size your power supply with the PSU wattage calculator and check the balance of your parts with the bottleneck calculator.