Overlay any sensors to scale: from a 1/2.3" phone chip to full frame, IMAX and large-format film, with crop factor, area, pixel pitch and equivalent focal lengths.
Full frame, APS-C, Micro Four Thirds, 1", phone, cinema and film formats, in your browser
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Shown at actual size - as close as your screen reports its own pixel density, which is exact on most phones and within about 10% on most monitors.
Pick any sensors with this sensor size comparison tool - full frame, APS-C, Micro Four Thirds, the 1" sensor in a premium compact, the 1/1.3" chip in a flagship phone, a cinema camera or a film format - and the page draws them nested to scale, then lists width and height in millimetres, diagonal, area, aspect ratio, crop factor and pixel pitch side by side. Type a camera or phone name to add it from the list, or enter your own width, height and megapixels as a custom sensor. Aligning the outlines by a shared corner shows the size difference at a glance; centred alignment shows what a lens sees. Switch on Actual size and the outlines are drawn at their physical size on your screen, which is the quickest way to grasp how small a 1/2.3" sensor really is. Image sensor sizes compared on one chart make the dimensions of cameras and phones concrete in a way a spec sheet never does.
Crop factor is usually quoted against full frame, but the question is often "what is a 25 mm f/1.4 on Micro Four Thirds in APS-C terms" or "how does a phone's 24 mm compare to my camera". Choose any selected sensor as the reference and every crop factor is recalculated against it. Enter a focal length and aperture and a column shows the equivalent focal length and f-number on the reference sensor for each row. The chart, link and table can be saved as a PNG, copied as a link that restores the exact comparison, or copied as a table for a spreadsheet or forum post.
A 1" sensor is 13.2 × 8.8 mm, nowhere near an inch across, which is why makers write "1.0-type". The names come from the 1950s video camera tubes that held a sensor of that size: a tube with a one-inch outer diameter gave an image roughly 16 mm across the diagonal, and the naming stuck. Every 1/x" size on this page follows the same rule of 16 mm divided by x, so a 1/2.3" sensor has a diagonal of about 7.7 mm, a 1/1.3" about 12.2 mm. Phone makers quote the type, not the millimetres, which is why the list pairs each type with the phones that carry it. Apple does not publish sensor sizes at all: the iPhone 18 Pro and Pro Max entry is derived from the sensor's 1.22 µm pixels and 48 MP count (the same 1/1.28" class as the 16 and 17 Pro), and the iPhone Duo entry is an estimate from its module size, which matches the iPhone 17 class rather than the Pro. Cinema and film entries are the manufacturer's active image areas, and every digital entry - camera or phone photo sensor alike - is the active area of a CMOS chip.
There is nothing to upload: the catalogue is part of the page and every number is worked out in your browser. A saved PNG is rendered on your own device, and a copied link carries only the selection, not who made it.
Full frame is 36 × 24 mm, 864 mm². Sony, Nikon and Fujifilm APS-C is 23.5 × 15.6 mm, 367 mm², so full frame has about 2.4 times the area and the crop factor is 1.5. Canon's APS-C is slightly smaller at 22.3 × 14.9 mm with a crop factor of 1.6.
A 1" sensor is 13.2 × 8.8 mm. The largest common phone sensors are 1/1.3", about 9.8 × 7.3 mm, so the 1" sensor has roughly 1.6 times the area. A few phones, such as the Xiaomi 14 Ultra, carry a 1" sensor in 4:3 shape, 13.1 × 9.8 mm, which is actually larger in area than the 3:2 version in compacts.
Add both from the list. The 1/2.3" sensor is 6.17 × 4.55 mm, 28 mm², against 367 mm² for APS-C, so APS-C has about 13 times the area. The crop factor between them is about 3.7, so a 24 mm lens on the small sensor frames like a 89 mm lens would on APS-C.
It scales a lens by the crop factor between each sensor and the reference. A 25 mm f/1.4 lens on Micro Four Thirds gives the same field of view and the same depth of field as a 50 mm f/2.8 lens on full frame. The light-gathering per pixel is not part of that comparison.
No. The page has no server side at all; the catalogue, the drawing and the calculations all run in your browser, so the comparison works offline once the page has loaded.