A4 vs A3
A4 is 210 × 297 mm (8.27 × 11.69 in); A3 is 297 × 420 mm (11.69 × 16.54 in). The difference: -87 mm in width and -123 mm in height, A4 relative to A3 — drawn below at one shared, true scale.
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Keychordkeyboard shortcuts for every appFontduetfont pairings that just workColorchordcolor palettes in perfect harmonyScreenchordevery screen, true to sizeIconchordevery icon, in seven voicesGlyphchordevery symbol, one click to copyLocalechordevery locale, formatted rightTimechordevery date-format token, in every languagePlugchordevery plug, every country, to scaleDialchordevery country code, dialed rightMimechordevery media type, straight from the registryA4 is 210 × 297 mm (8.27 × 11.69 in); A3 is 297 × 420 mm (11.69 × 16.54 in). The difference: -87 mm in width and -123 mm in height, A4 relative to A3 — drawn below at one shared, true scale.