How to Use the Passport Size Photo Size Generator, Step by Step
Reviewed by the OnlineFree.app team · Updated
Key points
- Upload one photo, pick a country preset, align the head guide, and export an exact-pixel JPEG.
- A 35×45 mm photo is 413×531 pixels at 300 DPI and 827×1063 pixels at 600 DPI.
- With 2 mm gutters, a 35×45 mm crop tiles six-up on 4×6 in paper and 30-up on A4.
- The tool runs fully in the browser, so photos are never uploaded to a server.
- Presets are generic guides — always verify current rules with the issuing authority.
How do you make a compliant passport photo online?
You upload one photo, pick your country preset, drag your face inside the on-screen biometric guide, and download a JPEG at exact pixel dimensions — that is the whole job. Passport Size Photo Size Generator does this entirely in your browser, so the image is never uploaded to a server, and it also exports a tiled print sheet with cut guides.
A run takes about a minute once you have a usable source photo. As of 2026 the tool carries eight presets: US 2×2 in (51×51 mm), Schengen/EU 35×45 mm, Germany 35×45 mm, UK 35×45 mm, India 51×51 mm, China 33×48 mm, Canada 50×70 mm and Australia 35×45 mm.
It is a cropper and spec-sheet tool, not a photo editor. There is no background remover, no teeth-whitening, and no file compressor — if your background is cluttered, fix that before you start.
Step by step: align the biometric head guide
Start by uploading a JPEG, PNG or WebP up to 20 MB. The tool checks the source resolution against the preset: for a 35×45 mm photo at 300 DPI you need at least 413×531 pixels, and it warns you if the shortest side falls short rather than silently upscaling a blurry image.
Pick your country from the dropdown (the default is US 2×2 in), then set DPI to 300 or 600. Drag the photo until the crown of the head and the chin sit inside the dashed biometric band. The zoom slider runs from roughly 100% to 300%, and arrow keys nudge the crop one small step at a time when the mouse is too coarse.
Watch the live spec readout while you work. It prints something like “35×45 mm · 413×531 px · 300 DPI · head 70–80% of frame”, which is the fastest way to confirm the head occupies the right share of the frame.
The two mistakes we see most often are leaving too much headroom (head ends up under 70% of frame) and a slightly tilted head that looks fine at thumbnail size but obvious against the guide lines. Straighten first, crop second.
What pixel size is a 35×45 mm photo at 300 DPI?
A 35×45 mm photo at 300 DPI is 413×531 pixels. The arithmetic is simple: millimetres ÷ 25.4 × DPI, then rounded, so 35 mm becomes 413 px and 45 mm becomes 531 px. Switch to 600 DPI and the same crop exports at 827×1063 px.
The same rule gives you every other preset. US and India at 51×51 mm are 600×600 px at 300 DPI and 1200×1200 px at 600 DPI. China at 33×48 mm is 390×567 px. Canada at 50×70 mm is 591×827 px. Schengen, Germany, UK and Australia all land on the familiar 413×531 px.
Choose 600 DPI only if the print lab asks for it or if you are printing larger than 5×7 in. Doubling the pixel grid does not add detail that was not in the original phone photo — it only makes the file bigger.
How many copies fit on a 4×6 print sheet?
With 2 mm gutters, a 35×45 mm crop tiles 2 across and 3 down — six copies on a 4×6 in sheet. The tool calculates this automatically from the preset size, so a US 2×2 in photo fits only 2 copies on the same sheet, while A4 holds a 5×6 grid, or 30 copies, of the 35×45 mm size.
Download the sheet as a JPEG or PNG and print it on photo paper at 100% scale. Turn off “fit to page” or “shrink oversized pages” in your print dialog, because that setting rescales everything and your 35 mm photo quietly becomes 34 mm.
The dashed cut guides sit in the 2 mm gutter, so a steady hand and a trimmer are enough — no measuring. If you would rather not print at all, upload the single-photo file to a kiosk or pharmacy and ask for the exact size by name.
For non-photo paperwork such as selling fees and payslip maths, the same free online tools site also hosts a UK eBay seller fees calculator and an Arabic-language Morocco net salary calculator.
What the Passport Size Photo Size Generator can't do
The country presets are generic guides, not a live feed of every consulate's rules. Head-height ranges, background colour and expression rules vary by document type, and they change — always confirm the current requirements with the issuing authority before you print. The US Department of State photo page and the UK government photo rules are the two references worth reading first.
The tool also will not clean up a bad source image. Shadows on the background, red-eye, glasses glare or a closed-mouth smirk will survive the crop at full resolution. Since it does not compress files, a 600 DPI export can be a few megabytes, which matters if a visa portal caps upload size at 240 KB or similar.
Finally, no cropper can promise acceptance. Treat the exported JPEG as a well-measured starting point, double-check the dimensions and head ratio against the official checklist, and keep the untouched original in case you need to redo the crop.
Frequently asked questions
What pixel size does the Passport Size Photo Size Generator export for a US passport photo?
A US 2×2 in (51×51 mm) photo exports at 600×600 pixels at 300 DPI and 1200×1200 pixels at 600 DPI. Both are exact sizes with no scaling, so the file meets the stated pixel requirements as long as the source photo was sharp enough to fill that grid.
Is the Passport Size Photo Size Generator free and private?
Yes. The tool runs entirely in your browser, so your photo is not uploaded to a server and there is no account or signup. As of 2026 all presets, DPI options and print sheets are available without payment, and closing the tab clears the working image from memory.
Can I print the passport photo at home or at a shop?
Yes. Download the print sheet for 4×6 in, 5×7 in or A4, print it on photo paper at 100% scale with borderless scaling switched off, then cut along the dashed guides in the 2 mm gutters. Shops and kiosks work too if you give them the exact millimetre size.
Does the tool guarantee my passport photo will be accepted?
No. It produces correctly measured crops for a generic country preset, but acceptance depends on the issuing authority's rules about background, expression, glasses and head height. Always verify the current checklist with the passport office or embassy before submitting the photo.
What source photo should I start with for a 35×45 mm crop at 300 DPI?
Start with a front-facing, evenly lit photo on a plain light background, and make sure the shortest side is at least 413 pixels — ideally double that, around 826 pixels, so the crop stays crisp. Phone photos taken in daylight against a wall usually work fine.