1500 x 500 pixels is the header (banner) size on X, formerly Twitter — an unusually wide 3:1 strip across the top of a profile. The profile photo overlaps the lower left of the header, and the visible area shifts between desktop and mobile, so centred compositions survive best.
1500
width (px)
500
height (px)
3:1
aspect ratio
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X displays profile headers from a 1500 x 500 upload — a 3:1 ratio that is much wider and shorter than a typical photo, so most images need deliberate re-cropping to fit.Uploading at exactly this size means you choose the crop, rather than letting the upload dialog decide which slice of your photo survives.
The profile picture overlaps the lower-left of the header, and the edges crop differently between desktop and mobile — the only region visible everywhere is the centre.Treat the middle of the canvas as the stage and the outer 10-15% as bleed: background texture there, nothing essential.
A 3:1 export also suits generic wide-banner placements — email headers, website hero strips, and profile banners on smaller platforms that accept wide images.Because 1500 x 500 is a manageable file size, it downscales cleanly wherever a narrower banner is needed.
Pick the image from your library that you want to resize to 1500 x 500 pixels.
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Once it's ready, save your resized image to your device.
X headers are 1500 x 500 pixels — a 3:1 aspect ratio. The profile photo overlaps the lower left of the banner, so keep important content centred.
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