Passport Photo Sizes by Country: Complete Measurement Guide
The Most Common Passport Photo Sizes Worldwide
Three standard sizes account for the majority of passport photos worldwide. The 35x45mm format (approximately 1.38x1.77 inches) is used by the largest number of countries including most of Europe, Japan, South Korea, India, the Philippines, and many African and Asian nations. The 2x2 inch (51x51mm) square format is used exclusively by the United States and a small number of other countries. The 50x70mm format (approximately 2x2.75 inches) is used by Canada and Brazil. Beyond these three major sizes, several countries use unique dimensions: China uses 33x48mm, Mexico uses 40x50mm, Turkey uses 50x60mm, and Saudi Arabia uses 40x50mm. Always verify the exact size required for your specific country and document type before printing.
Converting Between Millimeters, Inches, and Pixels
Understanding the relationship between physical dimensions and digital pixels prevents one of the most common errors in passport photo preparation. The conversion factor depends on print resolution, standardized at 300 DPI for passport photos. To convert millimeters to pixels at 300 DPI: multiply the millimeter value by 300 and divide by 25.4. For example, 35mm equals 413 pixels and 45mm equals 531 pixels. To convert inches to pixels at 300 DPI: multiply inches by 300. So 2 inches equals 600 pixels. Common conversions: US 2x2 inch equals 600x600 pixels or 51x51mm. European 35x45mm equals 413x531 pixels or 1.38x1.77 inches. Canadian 50x70mm equals 591x827 pixels or 1.97x2.76 inches. Chinese 33x48mm equals 390x567 pixels. Always work with these precise pixel values rather than rounding.
Regional Size Patterns
Geographic and historical patterns explain why different regions use different photo sizes. Most European Union member states follow the ICAO-recommended 35x45mm format, which was adopted as the EU biometric passport standard. The United States developed its own 2x2 inch (51x51mm) square format independently, and this square format simplifies centering requirements since the face is centered both horizontally and vertically in a symmetrical frame. Former British Commonwealth countries often adopted the 35x45mm standard through HM Passport Office influence. South American countries show more variation: Brazil and Canada use the larger 50x70mm format, while Argentina and Chile use square formats at different sizes. Middle Eastern countries tend toward 40x50mm or 35x45mm depending on their historical administrative influences.
DPI and Resolution Explained
DPI (dots per inch) is the bridge between digital pixel dimensions and physical print size. At 300 DPI, each inch of printed output contains 300 pixels. This is the standard resolution for all passport photo printing because it produces sharp, detailed images where individual pixels are invisible to the naked eye at normal viewing distance. Lower resolutions like 150 DPI produce visibly pixelated prints at passport photo sizes. Higher resolutions like 600 DPI offer no visible improvement but increase file size. When a country specifies both pixel dimensions and physical print size, 300 DPI is the assumed resolution connecting them. Never upscale a low-resolution image to meet pixel requirements, as interpolation creates visible blur and artifacts that will be detected during review. Always capture at higher resolution than needed and downsample.
Digital Upload Dimensions by Country
Many countries now accept or require digital photo uploads with specific pixel dimensions and file size limits. The United States requires 600x600 to 1200x1200 pixels for online applications. The United Kingdom accepts 600x750 pixels minimum through the gov.uk portal. Canada's IRCC requires a minimum of 420x540 pixels with a file size between 240 KB and 5 MB. India specifies JPEG format between 10 KB and 300 KB. China requires exactly 354x472 pixels between 40 and 120 KB in sRGB color space. The UAE's ICA app requires 600x600 minimum between 200 and 500 KB. Nigeria's NIS portal accepts 200x200 to 600x600 pixels under 200 KB. Always check the exact digital specifications for your destination country's online submission portal.
Готові створити фото для паспорта?
Використовуйте наш безкоштовний онлайн-інструмент для створення фото для паспорта відповідно до вимог будь-якої країни.
Відкрити редактор