Passport Photo Size — 2×2 in, 600×600 px and More
A US passport photo must be 2 × 2 inches, or 600 × 600 pixels at 300 DPI, printed on matte or glossy photo paper. Other countries use different dimensions — the UK and EU, for example, want 35 × 45 mm. The file size limit on online applications is usually under 100KB.
Passport photo rules differ by country, and getting them wrong means a rejected application. The two numbers that matter are the pixel dimensions and the file size the online form accepts. This page lists the common ones and points you to a tool that sets both in one step.
Passport Photo Sizes by Country
| Country / region | Dimensions | Pixels at 300 DPI | Online file cap |
|---|---|---|---|
| United States | 2 × 2 in | 600 × 600 px | Often ≤ 100KB |
| United Kingdom | 35 × 45 mm | 413 × 531 px | Often ≤ 100KB |
| European Union | 35 × 45 mm | 413 × 531 px | Varies by state |
| Canada | 50 × 70 mm | 591 × 827 px | Often ≤ 100KB |
| India (passport) | 35 × 45 mm | 413 × 531 px | Often ≤ 50KB |
Why the File Size Limit Matters
Most online passport and visa applications cap the upload around 100KB, and some exam portals are stricter at 50KB. A phone photo straight out of the camera is usually 2–4MB, so it will be rejected until it is compressed. You need the dimensions to match the form’s spec and the file size to fit its limit at the same time — that is the real trick, and it is what the tool below does.
How to Resize a Passport Photo
- Open the resize tool and drop in your photo.
- Set the pixel dimensions (600 × 600 for the US, 413 × 531 for UK/EU).
- Set a target file size under the form’s cap — usually 100KB.
- Download and upload to the application portal.
Check your country’s rules first
This table covers common cases. Requirements change, so confirm the exact dimensions and file cap on the official application site before you submit.
Related Tools
Frequently Asked Questions
What size is a US passport photo?
2 × 2 inches (51 × 51 mm), which is 600 × 600 pixels at 300 DPI. The photo must be in color, on a plain white background, taken within the last six months.
What size is a passport photo in pixels?
It depends on the country and the DPI. The US is 600 × 600 px at 300 DPI. The UK and EU are 35 × 45 mm, about 413 × 531 px at 300 DPI.
How do I make my photo under 100KB?
Resize to the exact pixel dimensions first, then compress to a target file size like 100KB. A free browser tool can do both in one pass, with no upload.
Can I use a phone photo for a passport application?
Yes, if it is taken correctly — bright, uniform background, no shadows, both ears visible, face centered. You then resize it to the required pixels and file size before uploading.
Do I need a white background?
The US requires a plain white or off-white background. Most other countries also ask for a plain, light-colored background. Resizing does not change the background, so take the photo correctly to begin with.