Resize Image to 1×1 Inch

A 1×1 inch print at 300 DPI is 300×300 pixels. That is the square asked for by some ID and document forms, stamp and sticker printing, and small print inserts. Everything runs in your browser — nothing is uploaded. Need a smaller file instead? Compress or convert.

or drop images here — or press Ctrl + V to paste

JPG · PNG · WebP · GIF · BMP — no size limit, no sign-up

Width (px)

Height (px)

Unit

DPI

Keep aspect ratio (set one, the other follows)

Scale 50%

Aspect ratio

Width in pixels (optional)

Fit whole image inside instead of cropping to fill (result may be smaller than the preset)

Output format

Output quality 90

Position & zoom

Zoom 100%

Drag the preview to choose which part of the image is kept. The same framing is used for every image in the batch.

—

resized

—

new size

Added 0 files

Why choose 1×1 inch?

A 1×1 inch photo measures 25.4×25.4 mm, 2.54×2.54 cm. It is widely requested for small 1×1 inch ID photos, and prints sharply at 300×300 pixels (300 DPI).

📐

300×300 px at 300 DPI

The pixel size is worked out for you, and the file is saved with 300 DPI so it prints at exactly 1×1 inch.

🎯

An official photo size

1×1 inch is the size required for small 1×1 inch ID photos. Always check the latest official rules for background and head size.

📄

70 per A4 sheet

With small gaps, 70 photos fit on one A4 page and 63 on US Letter — handy for printing several copies at home.

🖼

1:1 square shape

The square (1:1) proportion decides the framing. Drag the preview so the subject sits where the rules expect it.

💾

About 14 KB–28 KB as JPG

At 300 DPI a 1×1 inch photo is usually 14 KB–28 KB. If a form limits the file size, pair it with the compressor.

🔄

Same size, other units

1×1 inch equals 25.4×25.4 mm or 2.54×2.54 cm. Enter whichever unit your instructions use — the result is identical.

1×1 inch at a glance

Size	1×1 inch = 25.4×25.4 mm, 2.54×2.54 cm
Pixels at 300 DPI (print)	300×300
Pixels at 600 DPI (high quality)	600×600
Pixels at 200 DPI	200×200
Pixels at 150 DPI	150×150
Aspect ratio	square (1:1)
Copies per A4 sheet	70
Copies per US Letter sheet	63
Copies per 4×6 in photo paper	15
Typical JPG at 300 DPI	14 KB–28 KB
Same and similar sizes	2.5×2.5 cm, 25×25 mm, 32×26 mm, 3.5×2.5 cm

Resize a photo to 1×1 inch in 3 steps

Add your photo — a clear, well-lit original works best.
The size is already set to 1×1 inch at 300 DPI. Drag and zoom the preview to frame the face or subject.
Click Resize and download. Print it at 100% (“actual size”) so it comes out at 1×1 inch.

New to image resizing? Read the full resizing guide.

Square sizes

Same width and height — profile photos, icons, product shots:

8 × 8 10 × 10 16 × 16 28 × 28 32 × 32 40 × 40 50 × 50 64 × 64 96 × 96 98 × 98 100 × 100 112 × 112 120 × 120 128 × 128 144 × 144 150 × 150 180 × 180 184 × 184 192 × 192 200 × 200 240 × 240 250 × 250 256 × 256 300 × 300 320 × 320 350 × 350 360 × 360 400 × 400 450 × 450 480 × 480 500 × 500 512 × 512 600 × 600 640 × 640 700 × 700 800 × 800 840 × 840 900 × 900 1000 × 1000 1024 × 1024 1080 × 1080 1100 × 1100 1200 × 1200 1300 × 1300 1400 × 1400 1500 × 1500 1600 × 1600 1920 × 1920 2000 × 2000 2048 × 2048 2400 × 2400 2500 × 2500 3000 × 3000 4000 × 4000 5000 × 5000 6000 × 6000

Landscape sizes

Wider than tall — screens, banners, covers and thumbnails:

64 × 32 140 × 110 150 × 100 200 × 150 300 × 80 300 × 250 320 × 240 400 × 150 480 × 360 512 × 128 512 × 256 555 × 425 600 × 240 600 × 400 (3:2) 640 × 360 640 × 480 (4:3) 680 × 240 800 × 600 (4:3) 851 × 315 900 × 600 1000 × 500 1024 × 576 (16:9) 1080 × 566 1128 × 191 1200 × 628 1200 × 630 1200 × 675 (16:9) 1200 × 800 1200 × 900 1280 × 700 1280 × 720 (HD) 1366 × 768 1500 × 500 1500 × 1000 (3:2) 1600 × 900 1920 × 1080 (Full HD) 1920 × 1200 (16:10) 2048 × 1152 (2K) 2560 × 1440 (1440p) 2660 × 1140 (banner) 3000 × 1500 3440 × 1440 3840 × 2160 4080 × 3060

Portrait sizes

Taller than wide — passport photos, forms and phone screens:

Change the aspect ratio

Fit an image to a ratio without choosing pixels:

Any aspect ratio 16:9 4:3 3:2 1:1 4:5 5:4 3:4 2:3 9:16 21:9 5:2

Paper, print & photo sizes

Paper and photo sizes in mm, cm and inches, plus DPI tools:

A5 A4 A3 Letter Legal 4R (4 × 6 in) Postcard Stamp size Signature 2.5 × 2.5 cm 3 × 4 cm 3.3 × 4.8 cm 3.5 × 2.5 cm 3.5 × 3.5 cm 3.5 × 4.5 cm 3.5 × 5 cm 3.81 × 3.81 cm 4 × 3 cm 4 × 4 cm 4 × 5 cm 4 × 6 cm 4.5 × 3.5 cm 5 × 5 cm 5 × 7 cm 5.08 × 5.08 cm 25 × 25 mm 30 × 40 mm 32 × 26 mm 33 × 48 mm 35 × 35 mm 35 × 45 mm 35 × 50 mm 35 × 54 mm 36 × 36 mm 38.1 × 38.1 mm 40 × 50 mm 45 × 35 mm 45 × 38 mm 47 × 36 mm 50 × 50 mm 50 × 70 mm 50.8 × 50.8 mm 51 × 51 mm 52 × 40 mm 1.18 × 1.57 in 1.30 × 1.89 in 1.38 × 1.38 in 1.38 × 1.77 in 1.5 × 1.5 in 1.97 × 2.76 in 2 × 2 in 3 × 3 in 4 × 6 in 5 × 7 in 6 × 4 in 8 × 10 in 8.5 × 11 in Resize in pixels Resize in cm Resize in mm Resize in inches Resize by percentage 72 DPI converter 100 DPI converter 150 DPI converter 200 DPI converter 300 DPI converter 600 DPI converter

Resize for a platform

Ready-made sizes for social profiles and posts:

Resize tools

Batch resizing, DPI and crop tools:

Bulk image resizer Resize for printing Image DPI converter Image DPI checker Circle crop Square crop

Inches, pixels and DPI

An image file has no physical size. It has pixels. Inches only appear when you print, and the conversion is pixels ÷ DPI = inches. So:

1×1 inch at 300 DPI = 300×300 pixels (standard print quality)
1×1 inch at 600 DPI = 600×600 pixels (high-quality print)
1×1 inch at 150 DPI = 150×150 pixels (draft, or viewing at a distance)

This page produces the 300 DPI version, 300×300 pixels, because 300 is the standard assumption for photo and document printing. If your printer or the form you are filling in specifies a different DPI, use the exact dimensions mode and enter the pixel figure from the table above.

One important limitation: this tool sets the pixel dimensions. It does not write a DPI tag into the file metadata. For almost every use that is fine — print software asks you what size to print at, and the pixel count is what determines the quality. But if a form insists the file itself must declare 300 DPI, you will need software that writes that tag, such as GIMP or Photoshop, after resizing here.

For ID photos, check the exact requirement before you submit — many countries specify millimetres rather than inches, and most portals also cap the file size, which the compressor can handle. The same 300×300 pixels described in web terms is on the 300×300 page.

Frequently asked questions

How many pixels is 1×1 inch?

It depends on the DPI. At 300 DPI, the standard for printing, 1×1 inch is 300×300 pixels. At 600 DPI it is 600×600, and at 150 DPI it is 150×150. Multiply the inches by the DPI to get the pixel count.

How many photos of 1×1 inch fit on an A4 page?

About 70 on A4 and 63 on US Letter, leaving 5 mm margins and 3 mm between photos. On 4×6 inch photo paper you can fit 15.

What DPI should a 1×1 inch photo be?

300 DPI is the standard for photo prints and gives 300×300 pixels. Some offices accept 200 DPI (200×200); 600 DPI (600×600) is only needed for very high-quality printing.

What is 1×1 inch in other units?

1×1 inch is 25.4×25.4 mm, 2.54×2.54 cm. Close sizes that are often confused with it: 2.5×2.5 cm, 25×25 mm.

Why does my 1×1 inch print come out the wrong size?

Most printers scale images to “fit page” by default. Choose “actual size” or 100% in the print dialog, and the photo will print at exactly 1×1 inch.

How large is a 1×1 inch photo file?

Usually 14 KB–28 KB as a JPG at 300 DPI. If an online form allows less, reduce it with the compressor — the print size stays the same.

Are my images uploaded?

No. Resizing happens entirely in your browser. Nothing is transmitted or stored, and you can disconnect from the internet after the page loads and it still works.