1x1 Picture Maker
The 1x1 picture size in cm is 2.54 x 2.54: 1 inch on each side, 25.4 mm, or 300 x 300 pixels at 300 DPI. Make one for an ID or school form, add a name tag if asked, and print 24 on one 4R sheet.
1x1 Picture · Step 1 of 3 · Add your photo
Drop an image to resize
or paste with Ctrl+V · JPG PNG WebP HEIC GIF · max 25 MB
Processed on this device. Nothing is uploaded.
Example
Before and after
We ran this sample through the 1x1 picture tool above. The numbers under each image are measured from the real files.
How to
How to make a 1x1 picture
- 1
Add a front facing photo
Plain light wall behind you, even light on your face, shoulders visible.
- 2
Crop and add your name tag
The frame is locked to a square. Switch on the name tag and type your full name; the photo is placed above it, never covered.
- 3
Download or print
Save the 300 x 300 px photo for online forms, or the 4R (4 x 6 in) sheet with 24 copies for printing.
Why this size
1x1 picture size in cm, inches and pixels
1 by 1 size in cm is 2.54 x 2.54 cm. A 1x1 picture, also written 1 by 1 or one by one, is a square photo 1 inch wide and 1 inch tall. In millimeters that is 25.4 x 25.4 mm, and at 300 DPI, the print standard, it is 300 x 300 pixels.
A 1 inch photo usually means the same square. In China, though, a "1 inch photo" is 2.5 x 3.5 cm, so when a form gives a size in cm, follow the form. A 1:1 image is different again: 1:1 is only the square shape, at any size, such as a 1080 x 1080 pixel Instagram post.
The 1x1 size is used for IDs, school forms and records with a small photo box. Because it is so small, your face should fill most of the frame. A name tag still fits: the tool writes it in a bold, easy to read size. Need a bigger square? The 2x2 picture is twice as wide and tall. For a passport, most countries want a passport size photo of 3.5 x 4.5 cm instead, and many forms in India have a box for a stamp size photo of 2 x 2.5 cm.
| Measure | Size |
|---|---|
| Inches | 1 x 1 in |
| Centimeters | 2.54 x 2.54 cm |
| Millimeters | 25.4 x 25.4 mm |
| Pixels at 300 DPI (print) | 300 x 300 px |
| Pixels at 600 DPI | 600 x 600 px |
| Pixels at 200 DPI | 200 x 200 px |
| Copies on a 4R sheet | 24 |
Compare
1x1 compared with other photo sizes
Pixels at 300 DPI. Each size has its own tool on this site.
| Photo | Centimeters | Inches | Pixels |
|---|---|---|---|
| 1x1 picture | 2.54 x 2.54 | 1 x 1 | 300 x 300 |
| Stamp size photo | 2 x 2.5 | 0.79 x 0.98 | 236 x 295 |
| Passport size photo | 3.5 x 4.5 | 1.38 x 1.77 | 413 x 531 |
| 2x2 picture | 5.08 x 5.08 | 2 x 2 | 600 x 600 |
Tips
Tips that make a difference
Wear a collared top
Write the name as your form wants it
Print at actual size
FAQ
1x1 Picture: questions
- What is 1 by 1 size in cm?
- 2.54 x 2.54 cm. 1 by 1, one by one and 1x1 all mean a square photo 1 inch on each side, and 1 inch is 2.54 cm.
- What is 1 inch photo size in cm?
- 2.54 x 2.54 cm for a square 1 inch photo, the same as a 1x1 picture. In China a "1 inch photo" is a different size, 2.5 x 3.5 cm, so check the size your form gives.
- What is the 1x1 size in pixels?
- 300 x 300 pixels at 300 DPI, the usual print quality. At 600 DPI it is 600 x 600 pixels and at 200 DPI 200 x 200. For an online form, use the pixel size the form asks for; resize in pixels makes any size.
- What is 1x1 in mm?
- 25.4 x 25.4 mm, which is 1 x 1 inch or 2.54 x 2.54 cm.
- Is a 1x1 picture the same as a 1:1 image?
- Not quite. 1:1 is a square shape at any size, while a 1x1 picture is square and exactly 1 inch. To make a square image of any size, crop it with the 1:1 ratio.
- What is the difference between 1x1 and 2x2?
- A 1x1 picture is 2.54 cm square and a 2x2 picture is 5.08 cm square, twice as wide and tall.
- How do I make a 1x1 picture with a name tag?
- Add your photo, crop it, switch on Add a name tag and type your full name. The name appears in a white strip under the photo.
- How do I print 1x1 pictures on one sheet?
- Download the 4R print sheet. It holds 24 copies on 4 x 6 inch paper with cut lines. Print it at 100% at home or at any photo shop.
- How do I make a 1x1 picture in Word?
- Insert the photo, crop it to a square with Crop, Aspect Ratio, 1:1, then type 2.54 cm in the Height and Width boxes on the Picture Format tab. Making it here is quicker: the size, the name tag and the print layout are done in one step.
- Is my photo uploaded?
- No. Cropping, the name tag and the print sheet are all made in your browser.
Checked
How we checked this page
Checked by the SizePort team on .
We test the tool with sample photos before it goes live and check that the sizes on this page match what it produces. Rules and platforms change, so if something here is out of date, tell us and we will correct it.
How the tool works
The tool scales your image once, from the original pixels, to the size you set at 300 DPI, and writes 300 DPI into the file so it prints at that size. Everything happens in your browser; your images are never uploaded.