Passport and ID Photo Size in mm, Inches and Pixels

How it works

Choose the photo from the box or click to pick one, choose the country and target size from the list and press the button. The work happens in two steps: the picture is first cropped from the centre to the proportions of the size you selected, then scaled to its exact pixel dimensions. The United States option gives 600×600 pixels, which is 2×2 inches (51×51 mm) at 300 DPI. The 35×45 mm option used by the EU and Schengen countries, Germany and the United Kingdom gives 413×531 pixels. The India option gives exactly 630×810 pixels, the figure the Indian passport portal asks for. The two Türkiye options give 591×709 pixels for 50×60 mm and 531×709 pixels for a 4.5×6 cm print, and the square option gives the 480×480 pixels used for screen profiles. The result downloads as JPG at 92 percent quality with the size written into the file name, so several attempts do not get mixed up. Nothing else is altered — background, colour and lighting come out exactly as they went in. One warning before you print: read the measurement printed on your own form first, because the office receiving your application, not this page, decides which size is correct. The second list on the page is the print resolution: 300 DPI is the settled standard for identity photos, 600 DPI produces the same frame with twice as many pixels for portals that ask for a larger file, and 72 DPI is for screens only. The resolution you pick decides the pixel dimensions, and the result line spells them out as "35×45 mm, 300 DPI (413×531 px)". The arithmetic behind it is one line: divide the millimetres by 25.4 and multiply by the DPI, or for a size given in inches simply multiply the inches by the DPI. The India preset and the square option are the exceptions, because their pixel dimensions are fixed and the DPI choice does not change them.

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What is Biometric photo?

A biometric photo is a face image standardised so that a machine can read it: the print measurement, the proportion of the frame the head fills, the direction of the gaze and the background are all fixed by rule. The aim is measurability rather than a flattering picture — a passport gate compares values such as the distance between the eyes, so the framing is not left to taste. The framing rules come from ICAO Document 9303, while the paper size around them is set by whichever authority issues the document: 2×2 inches in the United States, 35×45 mm across the EU and the United Kingdom, 50×60 mm in Türkiye.

What is DPI?

DPI, dots per inch, says how many dots are printed into one inch of paper, and it is the bridge between a digital file and a physical measurement. The same pixel dimensions print small and sharp at 300 DPI, large and soft at 72 DPI. Identity photos are prepared at 300 DPI, which is why a request for 50×60 mm means a file of 591×709 pixels. The arithmetic is a single line: millimetres divided by 25.4, multiplied by the DPI you are printing at.

What is Pixel?

A pixel is the unit a file is measured in: the smallest indivisible square, carrying one colour. It matters for an ID photo because the portal receiving your upload cannot measure millimetres — there is no paper inside a file — so it counts pixels instead. "413×531 pixels" means the picture is 413 squares wide and 531 tall. That same pixel count prints as a neat 35×45 mm photo at 300 DPI and as a soft, palm-sized smear at 72 DPI, which is the point worth remembering: a pixel figure states no physical size on its own, it only acquires one alongside a DPI value.

What is Inch?

An inch is the length unit used on American and British forms, and it is defined as exactly 25.4 millimetres. That definition is why passport photo sizes look like two different worlds while describing the same piece of paper: a form printed in the United States asks for 2×2 inches, and the same photo is 51×51 millimetres on a European form. Converting is two-way and needs no table — multiply inches by 25.4 for millimetres, divide millimetres by 25.4 for inches. At 300 DPI an inch is also exactly 300 pixels, which is why 2×2 inches comes out as 600×600 pixels.

What is Centre crop?

A centre crop keeps the middle of the picture and discards the edges that do not fit the required shape. The tool works out the largest rectangle of the target proportions that fits inside the original, positions it in the middle and cuts there, so nothing is stretched and faces keep their proportions. The consequence is that a subject standing to one side of the original frame is cut into: with an identity photo, how the source was framed matters more than how many pixels it has.

ID photo or biometric photo — what is the difference?

Both are pictures of a face, but they carry different measurements and different rules. The classic ID photo is 4.5×6 centimetres and turns up on school records, employment files and institutional paperwork, with no strict rule about how much of the frame the head fills. A biometric photo is meant for machine-readable documents such as passports and identity cards: the background has to be plain, the subject has to look straight into the lens, and the length from the crown of the head to the chin has to stay inside a set range. In short, an ID photo is a measurement, while biometric is a measurement plus a body of rules. The measurement itself belongs to the issuing country — 2×2 inches in the United States, 35×45 mm across the EU and the United Kingdom, 50×60 mm in Türkiye — and this tool produces all of them.

This tool does not touch the background

The work here is geometric. The frame is cropped from the centre and scaled to the target pixel size; nothing is removed from the background, no shadow is cleaned up, no face is detected and no colour is corrected. A transparent PNG is flattened onto white, because JPG cannot carry transparency.

Official applications judge far more than the measurements. A plain single-colour background, even lighting with no shadow, how much of the frame the head fills, where it sits, and the rules on glasses and head coverings are all set out in the guidance of the authority receiving the application. Meeting those conditions and checking the output before you hand it in is your job; this page makes no promise that any office will accept the result.

Size table: millimetres, inches and pixels

Every line below follows the same order: the measurement in millimetres, the same measurement in inches, the pixel dimensions of a 300 DPI print, and finally who asks for it. So the first two values are one photo written in two units, and the pixel value is what the file on your computer has to measure.

You can check the pixel figures yourself, the arithmetic is one line: divide the millimetres by 25.4 and multiply by 300. That turns 51 mm into 602 and 35 mm into 413. Sizes defined in inches skip the middle step, because 2 inches is 600 pixels exactly — that is why the United States size is listed as 600×600 rather than 602×602.

• 51×51 mm · 2×2 in · 600×600 px — United States passport and visa applications
• 35×45 mm · 1.38×1.77 in · 413×531 px — EU and Schengen countries, Germany, United Kingdom
• 35×45 mm · 1.38×1.77 in · 630×810 px — India: the passport portal asks for exactly this pixel size
• 50×60 mm · 1.97×2.36 in · 591×709 px — Türkiye: passport, ID card and driving licence
• 45×60 mm (4.5×6 cm) · 1.77×2.36 in · 531×709 px — the classic ID photo used on school and employment files
• 480×480 px — screen only: profile pictures and badges, never printed

Passport photo size in pixels at 300, 600 and 72 DPI

Millimetres measure the paper, pixels measure the file, and the single number that ties the two together is DPI — how many dots are printed into one inch, which is 25.4 millimetres. That is why "how many pixels" has no single answer: you have to know the resolution before the pixel figure means anything.

The arithmetic is one line and you can check it on any calculator: pixels = millimetres ÷ 25.4 × DPI. The only fixed number in it is 25.4, because that is exactly how many millimetres make an inch. Take a 60 millimetre edge at 600 DPI: 60 ÷ 25.4 is about 2.36 inches, and 2.36 × 600 gives 1417 pixels. Anything with a decimal is rounded to the nearest whole number, since half a pixel does not exist.

The lines below give the same sizes at different resolutions, and the DPI list in the tool produces exactly these figures. For print, 300 DPI is the settled standard; 600 DPI doubles the file and satisfies portals that demand a larger upload; 72 DPI is for screens and comes out soft on paper.

• 35×45 mm · 300 DPI → 413×531 px — printed size for the EU, Schengen, Germany and the UK
• 35×45 mm · 600 DPI → 827×1063 px — for online forms that ask for more pixels
• 35×45 mm · 72 DPI → 99×128 px — screen only, far too small to print
• 51×51 mm (2×2 in) · 300 DPI → 600×600 px — United States passport and visa
• 2×2 in · 600 DPI → 1200×1200 px — a size given in inches skips a step: inches × DPI
• 50×60 mm · 300 DPI → 591×709 px — Türkiye: passport, ID card, driving licence
• 50×60 mm · 600 DPI → 1181×1417 px — the same frame at high resolution
• 45×60 mm (4.5×6 cm) · 300 DPI → 531×709 px — the classic ID photo

The form asks for a pixel size — which DPI do you pick?

Some online applications state pixels instead of millimetres. When they do, run the arithmetic backwards: the DPI you need = the pixels they ask for × 25.4 ÷ the millimetres of the photo. Then take the first resolution on the list above that figure; there is no need to hunt for an exact match.

A worked example: the Polish ID card application uses a 35×45 mm photo, but the uploaded file has to be at least 492×633 pixels and no larger than 2.5 MB, as stated on the official gov.pl application page. The sum runs 492 × 25.4 ÷ 35, which is about 357 DPI. So 300 DPI is not enough — it yields 413×531 pixels, below the minimum — while 600 DPI yields 827×1063 pixels and clears it comfortably. The same page sets the passport minimum at 768×1004 pixels, which 600 DPI also covers.

Read whether the requirement says "at least" or "exactly", because the two behave differently. If it says at least, a bigger file is fine. If it says exactly, the file has to match that number: India's 630×810 pixels is such a case, which is why it sits in the list as its own preset and ignores the DPI choice altogether.

• The form states millimetres or inches — pick the size and leave the resolution at 300 DPI
• The form states "at least … pixels" — DPI needed = pixels × 25.4 ÷ millimetres; take the next resolution above it
• The form states "exactly … pixels" — use the preset for that size if it is listed; otherwise crop to the right proportions here and set the exact pixels with the resize tool
• The photo is only ever shown on a screen — DPI has no meaning there, the pixel count alone is the size

Photo sizes are not the same everywhere

Passport and identity photo requirements are set by the country issuing the document, so a measurement that is correct in one place is refused in another. The framing rules used by machine-readable travel documents come from ICAO Document 9303, but the paper size around the face does not — that number belongs to the issuing office.

Two details are worth knowing before you upload rather than print. A digital upload sometimes has its own minimum: the United Kingdom asks for at least 600 pixels wide by 750 pixels tall, which is more than the 413×531 pixels a 35×45 mm print needs at 300 DPI, so the print size is not automatically enough for the online form. India goes the other way and fixes the file at exactly 630×810 pixels. Read the number on your own form, then pick the matching option here.

• Printed photo — the millimetre or inch measurement on the form is what counts
• Digital upload — the portal usually states a pixel size or a minimum instead
• Head height, background and expression — set by the issuing office, not by this tool

Look at the framing before you crop

The crop is taken from the centre, so a head that is off-centre in the original stays off-centre in the result. When you take the photo, or when you pick which one to use, keep the head in the middle of the frame and the shoulders level.

In a wide shot the head ends up small inside the target frame, because cropping to proportions cannot move the subject closer. A source like that gives a better result if you crop it roughly tighter first and then run it through this tool.

Frequently asked questions

Will the result be accepted by an official office?

No tool can promise that. This one sets the measurement and the frame; the background, the lighting, the proportion of the head and the pose are judged by the office receiving your application. Compare the output against their published guidance before you hand it in.

What is a passport size photo in inches?

It depends on the country, and the two common answers are easy to convert. The United States asks for 2×2 inches, which is 51×51 millimetres and 600×600 pixels at 300 DPI. The size used across the EU, Germany and the United Kingdom is 35×45 millimetres, which is 1.38×1.77 inches and 413×531 pixels. One inch is exactly 25.4 millimetres, so you can move between the two units by multiplying or dividing by 25.4.

How many pixels should a passport photo be?

For printing, multiply the size in inches by the resolution you print at, normally 300 DPI: 2×2 inches becomes 600×600 pixels and 35×45 mm becomes 413×531 pixels. For an online form the portal states its own figure instead, and it can be larger: India asks for exactly 630×810 pixels, while the United Kingdom sets a minimum of 600 by 750 pixels for digital photos. Match whichever number your form prints — and when the number is above the 300 DPI figure, the 600 DPI option here gives the same frame with twice as many pixels.

What does 300 DPI mean?

DPI is dots per inch: how many dots are printed into one inch, that is 25.4 millimetres, of paper. At 300 DPI the eye stops picking out individual dots, which is why identity and passport photos are prepared at that resolution. In practice it means each inch of the picture is 300 pixels wide, so a 2×2 inch US photo lands on exactly 600×600 pixels and a 35×45 mm photo on 413×531. If the image is only ever going to be shown on a screen, DPI has no bearing on anything: there the pixel count alone decides the size.

The form asks for 492×633 pixels — what do I do?

That figure is the minimum set for the Polish ID card application: the photo is 35×45 mm, but the uploaded file has to measure at least 492×633 pixels and stay under 2.5 MB. Choose the 35×45 mm size here and set the resolution to 600 DPI; the result is 827×1063 pixels, comfortably above the minimum. The 413×531 pixels that 300 DPI produces would be rejected. Any requirement worded as "at least" works the same way: work out the DPI you need with pixels × 25.4 ÷ millimetres, then pick the next resolution above it.

Can it make the background white?

No. The background comes out exactly as it went in — the tool crops and scales, it does not touch colour. If a white background is required, the photo has to be taken in front of one. The single exception is transparency: a transparent PNG is placed on white, since JPG has no transparent channel.

Where does 591×709 pixels come from?

That is a 50×60 millimetre print at 300 DPI. 50 mm is about 1.97 inches, and 1.97 multiplied by 300 gives 591. The same arithmetic on 60 mm gives 709. Divide millimetres by 25.4 and multiply by the DPI and you can check any of these numbers yourself.

What if my photo is smaller than the target?

It is scaled up. Enlarging adds no detail, it only softens what is already there, and the softness shows on paper long before it shows on screen. If the result is going to be printed, a source whose short edge is at least 709 pixels is enough.

Can I process several photos at once?

No, this tool takes one file. Choosing the right frame is half the work with an ID photo, and looking at each candidate on its own is safer than running a batch and discovering afterwards that the crop cut somebody's chin off.

Does a phone photo lose facial detail at passport size?

A 12-megapixel photo shrinks by nearly four times on its way to 591×709 pixels. At that ratio a crude resize melts the detail in the eyes and along the hairline, so once the scale drops below half a detail-preserving resampling (the Lanczos method) is used instead. The result line says which path was taken, and on paper that is exactly where the difference shows.