Resize image to 12x48 inch

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This preset sets the output size to 12 × 48 in, which is 12 × 48 in (30.48 × 121.92 cm). It is a physical size, so the number of pixels depends on the DPI: 1152 × 4608 px at 96 DPI, or 3600 × 14400 px at 300 DPI.

There is no widely used named standard at exactly this size, so the preset is useful when a printer, frame or form specifies it directly. Always check the dimensions given by whoever will print or receive the image.

Output size	12 × 48 in
In other units	30.48 × 121.92 cm / 304.8 × 1219.2 mm
Aspect ratio	1:4 (portrait)
Pixels at 96 DPI (Auto)	1152 × 4608
Pixels at 300 DPI	3600 × 14400 (51.8 MP)

12 × 48 in in pixels

Pixels = size in inches × DPI. DPI is a printing instruction, not a quality setting: it says how many pixels are spread over each inch of paper. With the DPI field on Auto, ResizeAny converts at 96 DPI, which suits screens. For print, set 300 DPI. JPG and PNG output stores the DPI value in the file.

DPI	Use	Pixel size
72	Screen preview	864 × 3456
96	Tool default (Auto)	1152 × 4608
150	Large posters, viewed from a distance	1800 × 7200
300	Photos, cards, anything held close	3600 × 14400

Will your photo be sharp enough?

A 12-megapixel phone photo (4000 × 3000) is short of the 3600 × 14400 pixels this size needs at 300 DPI. It would have to be enlarged by about 260%, which looks soft. Use a 150 DPI target (1800 × 7200 px) for a more realistic result, or start with a larger original.

Needed source resolution: 51.8 megapixels or more at 300 DPI.

Matching the 1:4 shape

The output is 1:4. If your photo has another shape, it has to be cropped or it will be stretched. This is how much of each common photo is lost when cropped to fill 1:4:

Starting photo	Cropped away to fill the shape
Phone photo (4000 × 3000, 4:3)	About 81% of the image
DSLR photo (6000 × 4000, 3:2)	About 83% of the image
Video frame (1920 × 1080, 16:9)	About 86% of the image
Portrait phone photo (3000 × 4000, 3:4)	About 67% of the image

How to resize an image to 12x48 inch

Add your image. Select a photo or drag it onto the box above. JPG, PNG, WebP, AVIF, HEIC and BMP files are accepted, and the file stays on your device.
Set the resolution. The preset fills in 12 × 48 in. Leave DPI on Auto to convert at 96 DPI, or enter 300 DPI for print so the file has enough pixels for a sharp result.
Crop if the shape differs. The target shape is 1:4. If your photo is a different shape, crop it first so the print is not stretched.
Download and print at 100%. Save as JPG or PNG; the DPI value is stored in the file. Print at 100% scale, not "fit to page", so the physical size stays exact.

Related presets

Same physical size under another name or unit

Resize image to 48x12 inch48 × 12 in

Nearby sizes in this category

More 1:4 presets

More in this category: Resize Image to Exact Inch Sizes. For several photos at once, use the bulk image resizer.

Frequently asked questions

What is 12 × 48 in in pixels?▼

It depends on DPI: 1152 × 4608 px at 96 DPI, 1800 × 7200 px at 150 DPI and 3600 × 14400 px at 300 DPI.

What DPI should I use for a 12 × 48 in print?▼

300 DPI for anything seen up close, such as photos, cards and labels; 150 DPI is acceptable for larger prints viewed from a distance. Higher than 300 rarely gives a visible gain.

What is 12 × 48 in in other units?▼

12 × 48 in, 30.48 × 121.92 cm and 304.8 × 1219.2 mm. It does not correspond to a common named standard.

How do I make sure it prints at exactly 12 × 48 in?▼

Set the size and a DPI, download the file, and print at 100% scale. Options such as "fit to page" or "shrink to printable area" silently change the physical size, so turn them off. If a lab does the printing, tell them the exact size rather than relying on the file's DPI value.

Is a phone photo big enough for 12 × 48 in?▼

At 300 DPI, not quite: you need 51.8 MP and a 12 MP phone photo has about 12. It will work at 150 DPI, or when viewed from further away.

Is my image uploaded anywhere?▼

No. ResizeAny decodes, resizes and re-encodes your picture inside your browser tab, so a photo you prepare for a 12 × 48 in print never leaves your device. You can confirm this in your browser's developer tools: the Network tab shows no upload request while you work.

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