Passport Size Photo Size Generator: Exact Sizes and Common Mistakes
Reviewed by the OnlineFree.app team · Updated
Key points
- A 35×45 mm photo is 413×531 px at 300 DPI and 827×1063 px at 600 DPI.
- Choose the country preset first: US uses 2×2 in, Schengen, UK and Germany use 35×45 mm.
- Print sheets must be printed at 100% or "actual size", or the paper photo measures wrong.
- The generator only crops and exports; it does not remove backgrounds or compress files.
- Country presets are generic references, so verify final dimensions with the issuing authority.
What the passport photo generator actually exports
The Passport Size Photo Size Generator crops one uploaded photo to an exact official size and downloads it as a fixed-pixel JPEG at quality 92. For 35×45 mm presets (Schengen, Germany, UK, Australia) that means 413×531 px at 300 DPI or 827×1063 px at 600 DPI. For the US 2×2 in preset it means 600×600 px at 300 DPI.
Those numbers are not approximations. The tool resamples your crop to the precise pixel dimensions the preset plus DPI combination implies, which is what online visa forms and passport portals usually ask for. A spec readout sits under the canvas and states it plainly, for example "35×45 mm · 413×531 px · 300 DPI · head 70–80% of frame", so you can compare it against the checklist from the issuing authority before uploading anything.
Alongside the single photo, you can download a tiled print sheet at 4×6 in, 5×7 in or A4, with 2 mm gutters and dashed cut guides. The Passport Size Photo Size Generator shows the sheet preview and the exact copy count before you commit, which matters more than it sounds: trimming six identical photos from one sheet is far cheaper than ordering prints twice.
Pick the country preset before you crop
The single most common mistake we see is cropping first and choosing the country afterwards. If you align a face to the US 2×2 in guide and then switch to a Schengen 35×45 mm preset, the crop jumps and your careful alignment is thrown away. Choose the preset first, then align.
The presets are US 2×2 in (51×51 mm), Schengen/EU, Germany, UK and Australia at 35×45 mm, India 51×51 mm, China 33×48 mm and Canada 50×70 mm. At 300 DPI those become 600×600 px for the US, 600×600 px for India, 390×567 px for China and 591×827 px for Canada. Two presets can share a millimetre size and still differ in head-height expectations, which is why the tool tracks head range per preset rather than per millimetre value.
Head size is where presets genuinely diverge. The US guide is looser than the Schengen one: the U.S. Department of State asks for a head between 1 inch and 1 3/8 inches inside a 2 inch square photo, while a 35×45 mm frame expects the head to fill roughly 70–80% of the height. If you reuse one photo across two applications, re-align it for each preset instead of assuming it transfers.
How do you align the biometric head guides?
Drag the photo to pan and use the zoom slider, which runs from 100% to 300%, to scale the face inside the frame. Arrow keys nudge the image by single steps when you need precision a mouse drag cannot give. Panning is constrained so the crop frame always stays inside your source image, which prevents the grey filler edges that ruin otherwise good crops.
Aim for the crown of the head to sit just inside the top guide with a small margin of background above it, eyes roughly in the upper third of the frame, and the chin comfortably above the bottom edge. The head-height band updates live as you zoom, so you can see when the face is too small (too much empty background) or too large (chin and crown clipped by the guides).
Common mistakes here are tilting the photo instead of re-shooting, leaving a hard shadow on one side of the face, and cropping so tightly that the shoulders disappear entirely. If a guide line sits on top of an ear or the top of the hair, you have zoomed in too far, not too little.
What your source photo must contain
The tool needs a source image with at least the pixels it is about to write. At 300 DPI a 35×45 mm crop is 413×531 px, so the face region you select has to be at least that big. At 600 DPI the requirement doubles to 827×1063 px, and switching from 300 to 600 DPI on a marginal source photo is the fastest way to get a soft, blurry export.
Most modern phone photos are far larger than that: a 12 MP camera produces roughly 4032×3024 px, leaving plenty of room to crop. Problems appear with screenshots, WhatsApp-compressed copies, photos already cropped square for social media, and scans of old prints. The tool warns you when the shortest side of your upload falls below what the chosen DPI requires, and you should treat that warning as final rather than as a suggestion.
Upscaling does not add detail. Blowing a 200×300 px face region up to 827×1063 px produces a bigger file with the same softness, and automated photo checks tend to reject it. Uploads are capped at 20 MB and accept JPEG, PNG and WebP, so there is no reason to compress the original before you start.
Printing the sheet at true size
A file with perfect pixel dimensions can still produce a wrong-sized print. Printer dialogs default to "Fit to page" or a scale percentage, and both quietly resize your photo. Set scaling to 100% or "Actual size", disable fit-to-page, and print on photo paper rather than plain paper, which bleeds and curls.
The tool lays out as many copies as fit on your chosen sheet with 2 mm gutters between them, then draws dashed cut guides. On a 4×6 in sheet that is usually around half a dozen 35×45 mm photos, and the preview shows the exact count and orientation before download. A4 is worth selecting where 4×6 paper is hard to find, and it is the practical choice for India's 51×51 mm photos if you want more than a few copies per sheet.
Verify with a ruler the first time. A 35×45 mm photo must measure exactly 35 mm across, and a US 2×2 in photo must measure 2 inches square. If it does not, the fault is almost always the print scale, not the export.
What this tool does not do for you
This is a crop-and-export instrument, not a portrait editor. It does not remove or replace backgrounds, does not compress images to a target file size, and does not auto-detect faces. You supply the plain light background, the even lighting and the neutral expression; the tool handles dimensions, alignment against the guides, and pixel-exact output.
That division of labour is deliberate. Background replacement tools can leave halos around hair and glasses that photo reviewers notice, and heavy compression can introduce artefacts in a photo that will be examined closely. If you need a specific upload size, compress the finished export separately after checking its dimensions.
Presets are generic references, not legal documents. Official rules change, and consulates sometimes add local requirements on top of the national standard, so check the GOV.UK passport photo rules or your own issuing authority before submitting. Everything runs in your browser, and OnlineFree.app keeps no copy of your photo, which also means nothing is stored for you if you close the tab mid-edit.
Frequently asked questions
What pixel size does a 35×45 mm passport photo need at 300 DPI?
A 35×45 mm photo needs 413×531 pixels at 300 DPI and 827×1063 pixels at 600 DPI. Those are the exact numbers the Passport Size Photo Size Generator writes when you pick a 35×45 mm preset such as Schengen, Germany, UK or Australia. At 600 DPI your source photo's face region must be at least that large, or the export will look soft.
Can I use the Passport Size Photo Size Generator for a US passport photo?
Yes. Select the US 2×2 in (51×51 mm) preset and the tool exports 600×600 pixels at 300 DPI, or 1200×1200 pixels at 600 DPI. The US guide also expects the head to measure between 1 inch and 1 3/8 inches, a smaller head relative to the frame than the Schengen preset. Confirm details on the Department of State's own photo page.
Are my photos uploaded to a server when I use this tool?
No. The Passport Size Photo Size Generator runs entirely in your browser, so the image never leaves your device. That is good for privacy, but it also means you are responsible for judging the result: the tool crops and exports to exact dimensions, it does not assess whether your lighting, background or expression will pass an official review.
Why is my printed passport photo the wrong size?
Wrong-sized prints almost always come from the printer dialog rather than the file. Choose "Actual size" or 100% scaling and turn off "Fit to page". Then measure the print with a ruler: a 35×45 mm photo should be exactly 35 mm wide. The 2 mm gutters and dashed cut guides give you a small trimming margin.
What happens if my source photo is too small for the chosen DPI?
The tool warns you when the shortest side of your upload is smaller than the pixels required at the selected DPI. At 300 DPI a 35×45 mm crop needs 413×531 pixels; at 600 DPI that doubles to 827×1063. Upscaling adds file size but not detail, so re-shoot or use a higher-resolution original.