Size and resolution cheat sheet

Device resolutions

Device	Screen size	Resolution	DPI
Google Pixel 10 Pro XL	70mm × 156mm (6.75")	1344 × 2992	486
iPhone 17 Pro Max	73mm × 158mm (6.86")	1320 × 2868	460
iPhone 17	67mm × 145mm (6.27")	1206 × 2622	460
iPhone 17e	65mm × 140mm (6.06")	1170 × 2532	460
Google Pixel 10	65mm × 146mm (6.29")	1080 × 2424	422
Galaxy S25	66mm × 143mm (6.2")	1080 × 2340	416
Google Pixel 10 Pro Fold (outer)	67mm × 147mm (6.37")	1080 × 2364	408
Google Pixel 10 Pro Fold (inner)	141mm × 147mm (8.02")	2076 × 2152	373
iPad mini (A17 Pro)	116mm × 177mm (8.32")	1488 × 2266	326
Nintendo Switch 2	175mm × 98mm (7.9")	1920 × 1080	279
Google Pixel Tablet	236mm × 147mm (10.94")	2560 × 1600	276
Surface Pro 11	274mm × 183mm (12.96")	2880 × 1920	267
13-inch iPad Pro	199mm × 265mm (13.03")	2064 × 2752	264
13-inch iPad Air	197mm × 263mm (12.93")	2048 × 2732	264
11-inch iPad Pro	160mm × 233mm (11.13")	1668 × 2420	264
11-inch iPad (A16)	158mm × 227mm (10.89")	1640 × 2360	264
14-inch MacBook Pro	302mm × 196mm (14.20")	3024 × 1964	254
16-inch MacBook Pro	346mm × 223mm (16.20")	3456 × 2234	254
Typical 14" laptop, 2.8K	302mm × 188mm (14")	2880 × 1800	243
13-inch MacBook Air	290mm × 189mm (13.63")	2560 × 1664	224
15-inch MacBook Air	327mm × 211mm (15.32")	2880 × 1864	224
Typical 16" laptop, WQXGA	345mm × 215mm (16")	2560 × 1600	189
Typical 27" widescreen, 4K	598mm × 336mm (27")	3840 × 2160	163
Typical 14" laptop, WUXGA	302mm × 188mm (14")	1920 × 1200	162
Typical 32" widescreen, 4K	708mm × 398mm (32")	3840 × 2160	138
Typical 34" ultrawide, UWQHD	797mm × 333mm (34")	3440 × 1440	110
Typical 27" widescreen, QHD	598mm × 336mm (27")	2560 × 1440	109
Typical 24" widescreen, FHD	531mm × 299mm (24")	1920 × 1080	92

Paper sizes

Standard	A series (long × short)	JIS B series (long × short)
A0/B0	1189mm × 841mm	1456mm × 1030mm
A1/B1	841mm × 594mm	1030mm × 728mm
A2/B2	594mm × 420mm	728mm × 515mm
A3/B3	420mm × 297mm	515mm × 364mm
A4/B4	297mm × 210mm	364mm × 257mm
A5/B5	210mm × 148mm	257mm × 182mm
A6/B6	148mm × 105mm	182mm × 128mm
A7/B7	105mm × 74mm	128mm × 91mm
A8/B8	74mm × 52mm	91mm × 64mm

Other sizes

Japanese postcard … 148 mm × 100 mm (about 5% narrower than A6)
Business card … 91 mm × 55 mm (about 10% narrower than B8)
US Letter … 279 mm × 216 mm (about 10% shorter and a few % wider than A4)
Newspaper … 813 mm × 546 mm when opened (close to A1 but a bit smaller)
Credit card … 85.6 mm × 54.0 mm
Magnetic card … 85.0 mm × 57.5 mm
Telephone card … 86.0 mm × 54.0 mm
CD … 120 mm in diameter (15 mm hole, printable area between 46 mm and 116 mm in diameter)

ID photo sizes

Passport … 4.5 cm tall × 3.5 cm wide
Résumé, TOEIC … 4 cm tall × 3 cm wide
TOEFL, Eiken … 3 cm tall × 3 cm wide
Driver's license … 3 cm tall × 2.4 cm wide

More: List of ID photo sizes required for résumés and various qualifications and exams (in Japanese)

Length unit conversions

96px = 1in = 2.54cm = 25.4mm = 72pt = 6pc = 101.6Q … absolute lengths with fixed conversions
1rem = font-size of the root element
1em = font-size of the element
1ex = x-height of the element, 1rex = x-height of the root element
1cap = cap height of the element, 1rcap = cap height of the root element
1ch = width of "0" in the element, 1rch = width of "0" in the root element
1ic = width of "水" in the element, 1ric = width of "水" in the root element
1lh = line-height of the element, 1rlh = line-height of the root element
100vw = width of the viewport, 100vh = height of the viewport
100vi = inline-direction length of the viewport, 100vb = block-direction length of the viewport
100vmin = shorter side of the viewport, 100vmax = longer side of the viewport
100svw = width of the small viewport, 100svh = height of the small viewport; the small viewport is the smaller display area, counted as if the browser UI is visible
100svi = inline-direction length of the small viewport, 100svb = block-direction length of the small viewport
100lvw = width of the large viewport, 100lvh = height of the large viewport; the large viewport is the larger display area, counted as if the browser UI is collapsed
100lvi = inline-direction length of the large viewport, 100lvb = block-direction length of the large viewport
100dvw = width of the dynamic viewport, 100dvh = height of the dynamic viewport; the dynamic viewport is the display area actually visible at that moment
100dvi = inline-direction length of the dynamic viewport, 100dvb = block-direction length of the dynamic viewport
100cqw = width of the query container, 100cqh = height of the query container; the query container is the parent container specified in CSS
100cqi = inline-direction length of the query container, 100cqb = block-direction length of the query container
100cqmin = shorter side of the query container, 100cqmax = longer side of the query container
Rules of thumb: use rem for body text and margins, em for scaling within a component, ch for character-count-based widths, ic for CJK-based widths, and lh for vertical spacing
On mobile, choosing between 100svh and 100dvh is safer than using 100vh for heights

Actual size on screen

Length

The numbers show the distance from the left edge to the right edge of the black bar (edges included).

32px:

64px:

100px:

128px:

200px:

256px:

300px:

Size and resolution cheat sheet

Device resolutions

Paper sizes

Other sizes

ID photo sizes

Length unit conversions

Actual size on screen

Length

Font size