Passport photo guide

Passport photo head size: the most common rejection cause, explained and fixed

Wrong head size is the single most common rejection reason for US passport photos — more common than shadows, more common than glasses, more common than the AI processing issues that became prominent in 2026. The State Department's own guidance states: "If the person taking your photo is standing too close or too far away, your head may not be the correct size." The correct head height in a US passport photo is between 1 inch and 1 and three-eighths inches from the bottom of the chin to the top of the head. That corresponds to the face occupying 50 to 69 percent of the photo's 2x2 inch height. The problem is almost always that the face is too small — the instinct to step back from the camera to fit the whole head comfortably in frame regularly produces a photo where the face falls below the minimum. This guide explains exactly what the requirement means, why most home photos fail it, and what to change before the session.

Download PassSnap See pricing

PassSnap guide

Capture · Verify · Download

Keywordpassport photo head size

UpdatedAug 19, 2026

ReviewCrop, background, and AI verify

The exact specification

The US passport photo is 2x2 inches (51x51mm). The face from the bottom of the chin to the top of the head — the crown, not the top of the hair — must measure between 1 inch and 1 and three-eighths inches. In decimal terms, that's 25mm to 35mm. As a percentage of the 2-inch frame height, the face must occupy 50 to 69 percent. The range — 50 to 69 percent — is wider than many people realise. A face that fills a little over half the frame is acceptable; so is a face that fills just under 70 percent. The failure modes are outside this range: below 50 percent (face too small) and above 69 percent (face too large or the photo has been cropped too tightly). In addition to overall head size, there is a second constraint: the vertical placement of the eyes within the frame. The distance from the bottom of the photo to the eye line should be between 56 and 69 percent of the image height. This ensures that the face is correctly positioned within the frame, not just correctly sized. A photo where the head is the right size but positioned too high or too low in the frame will still fail automated biometric checks, because the eye line is used as a reference point by facial recognition systems.

Why home photos fail the head size check

Wrong head size in home photos is almost always caused by taking the photo from too far away. When you photograph someone's face, the instinct is to step back enough that the whole head — from the top of the hair to the chin — fits comfortably in the viewfinder with space on all sides. That instinct produces correct composition for a portrait or a social photo. For a passport photo, it produces a face that's too small. The State Department's guidance puts the camera "several feet" from the subject. In practice, 1.5 to 2 metres is the correct range. At 1.5 metres with a modern smartphone rear camera, the face of a typical adult occupies roughly the right proportion of the frame when the photo is properly cropped to 2x2 inches. At 2.5 metres or more, the face typically comes in below the 50 percent minimum. The second cause is checking head size in the wrong image. A photo that looks correctly sized in the full uncropped camera frame may be too small in the final 2x2 inch crop. The head size requirement applies to the cropped export, not to the full photo the camera captured. If you're checking a full 4000x3000 pixel camera image on your phone screen, the face proportions you see are not the proportions in the 2x2 inch crop. Always check the crop. The third cause is using a selfie or the front camera at close range. Wide-angle lenses at close distance create perspective distortion that makes facial proportions inaccurate, and the distance from the front camera lens to the subject in a selfie is usually much less than 1.5 metres. At under 60cm — a typical selfie distance — even a head that fills the entire frame will have distorted proportions that biometric systems measure differently from how a correctly taken rear-camera photo at distance would read.

The percentage vs millimetre question

Some applicants see "50 to 69 percent of the image height" and others see "1 inch to 1 and three-eighths inches" and aren't sure which unit to use. Both are describing the same requirement. 50 percent of a 2-inch frame equals 1 inch, which equals 25.4mm. 69 percent of a 2-inch frame equals approximately 1.38 inches, approximately 35mm. The percentage is useful for digital photos, where you can calculate the face height in pixels relative to the total image height. The millimetre measurement is useful for printed photos, where you can physically measure the print. Both ultimately apply the same standard: 50 to 69 percent of the frame height.

How to measure head size in a cropped photo

Before printing or uploading, confirm the head size in the exported 2x2 crop rather than in the full camera image. For a digital file on a computer: open the image in any photo viewer or editor. Note the total image height in pixels. Identify the pixel position of the bottom of the chin and the top of the head (crown). Calculate the face height in pixels. Divide by the total image height. The result should be between 0.50 and 0.69. If it is below 0.50, the photo needs to be recropped or retaken. For a printed photo: use a ruler. Measure the total print height (should be 51mm). Measure the distance from the bottom of the chin to the top of the head in the print. That measurement should be between 25mm and 35mm. If it is less than 25mm, the face is too small in the print. Most phone camera apps do not show you the 2x2 crop in real time — they show the full frame, which is why head size problems go undetected until the final check. Tools that show the correct crop in real time while shooting address this directly.

What to do if the head is too small

The fix for a head that is too small is to move the camera closer to the subject or to use optical zoom to effectively narrow the field of view. Do not use digital zoom — digital zoom degrades image quality without improving the optical relationship between the face and the background. If you are using a smartphone with multiple rear cameras (a Pro or Ultra model with 2x, 3x, or 5x optical zoom), switching from the primary 1x lens to the 2x telephoto while stepping back slightly produces a larger face in the frame without the wide-angle distortion that comes from getting physically closer with the primary lens. This combination — telephoto lens, greater physical distance — gives the most accurate facial proportions for a correct-size passport photo. If your phone does not have a telephoto lens, the fix is simply to move physically closer. At 1.5 metres from the camera, most adults will have a correctly sized face in the 2x2 crop. If 1.5 metres is still too small, try 1.2 metres. Take a test shot, crop it to 2x2, and measure before committing to the full session.

What to do if the head is too large

Too large is less common but does occur when the camera is too close or the photo has been cropped too tightly before upload. The State Department shows an example of an incorrect photo labelled "You are too close to the camera" as one of the failure modes. If the face is above 69 percent of the frame height, step back from the camera. For most adults at 2 metres, the face will be within the acceptable range. If you were at 1 metre or less, the photo will be too tight. Also check whether the crop is correct. If you have cropped the 2x2 frame to include only the face without the top of the head and the top of the shoulders, the resulting face size will appear too large. The crop should show the top of the head with some space above it, the chin, and the top of the shoulders.

The eye height requirement

Beyond the overall face size, the State Department's system also checks the vertical position of the eyes within the frame. The eye line must be between 56 and 69 percent of the image height measured from the bottom of the image. This means the eyes should be positioned roughly in the upper half of the frame — not at the very top, which would mean the chin and lower face are being cut off, and not at the centre or below, which would mean excessive space above the head. This requirement is easier to satisfy than to explain. A correctly sized face — 50 to 69 percent of the frame — that is positioned so the chin has a small amount of space at the bottom of the frame and the crown has a small amount of space at the top will usually also have the eye line in the correct range. The failure mode that catches people is a photo where the face is correctly sized but positioned too high — the crown of the head is at or near the top edge of the 2x2 crop, the chin is near the centre, and the eye line is above the 69 percent threshold. This looks like the face is centred in the frame vertically, but it is actually too high.

Head size across different markets

The US head size requirement (50 to 69 percent of image height) is among the more permissive of the six PassSnap-supported markets. New Zealand's requirement (60 to 70 percent) is tighter on the lower end, meaning NZ photos require a slightly larger face fill than US photos. The UK's requirement (64 to 76 percent) is tighter still. Canada's requirement (31 to 36mm within a 70mm frame height) works out to approximately 44 to 51 percent of the frame height — a narrower band expressed in millimetres rather than percentages. If you are preparing photos for multiple markets and want to use one session's frames for multiple submissions, the most constraining requirement determines how the photo should be set up. For US and NZ together, the 60 to 69 percent overlap zone is the target. For US, NZ, and UK together, the overlap is 64 to 69 percent.

How PassSnap fits

PassSnap's guided capture shows real-time head-size feedback in the viewfinder before the shutter fires — indicating whether the face is within the correct proportion range for the selected document type. This addresses the core problem that causes most head size failures: people do not know the face is too small until they have already left the setup, printed the photo, and submitted the application. The guided feedback loop — shoot, see the proportion indicator, adjust the distance, reshoot — takes under five minutes and eliminates the need to measure pixel percentages manually after the fact.

Before the session

Mark a position on the floor at 1.5 metres from where the camera will be mounted. This is your standing position for the photo. If test shots show the face is below 50 percent of the frame after cropping, move 10 to 15 centimetres closer and test again. If it is above 69 percent, move further back.

Use the rear camera, not the front camera. The front camera's wide-angle lens at selfie distance produces face sizes that appear correct in the phone viewfinder but are often distorted and incorrectly proportioned in the 2x2 crop.

Take a test shot, crop it to the 2x2 proportions in the camera roll or photos app, and check the face proportion before committing to the full session. Adjusting distance takes seconds; discovering the face was too small after printing takes days.

If you have a telephoto rear camera option (2x or higher), use it. The telephoto at slightly greater distance produces more accurate proportions and less wide-angle distortion than the primary lens at close range.

FAQ

How big should the head be in a US passport photo?

The face from the bottom of the chin to the top of the head (crown, not the top of the hair) must measure between 1 inch and 1 and three-eighths inches in a 2x2 inch passport photo. That corresponds to 50 to 69 percent of the photo's total height. This is measured in the final 2x2 crop, not in the full camera image.

My passport photo was rejected for wrong head size. What did I do wrong?

The most likely cause is that the camera was too far away from you when the photo was taken. The State Department specifically states: "If the person taking your photo is standing too close or too far away, your head may not be the correct size." The most common version of this failure is the face being below 50 percent of the frame height — too small. The fix is to retake the photo with the camera 1.5 to 2 metres away and to check the face proportion in the 2x2 crop (not the full camera image) before submitting.

Can I fix head size by cropping the photo after it is taken?

Sometimes, but with limits. If the original photo shows the face at a proportion larger than 50 percent of the frame but you cropped the 2x2 too loosely (leaving too much space around the head), you can re-crop more tightly to bring the face proportion up. You cannot crop to make a face larger than the original capture — if the face is below 50 percent in the uncropped original at any valid 2x2 crop position, you need to retake the photo closer to the camera.