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Resize a photo to 105×148 mm (1240×1748 pixels)
A 105×148 mm print at 300 DPI is 1240×1748 pixels. Set 105×148 mm and 300 DPI in the panel and choose crop to fill: a 4:3 phone photo loses 46.8% and still gives 519 pixels per inch. As a JPEG, a detailed outdoor photo comes to about 719 KB at the panel's default quality 85 and 546 KB at quality 75.
105×148 mm at 300 DPI (1240×1748 px)
JPG · no file-size limit · 105x148 mm at 300 DPI · white background
No file-size limit is set: PixelFit saves at high quality and changes only the format and any pixel size you set. 105x148 mm at 300 DPI is 1240x1748 pixels.
Fit, background and padding crop to fill · white background
Saving presets is part of Pro.
The result appears here: the exact byte count, pixel size and quality, the size before and after, a preview and a download button.
The batch kit (one ZIP for up to 500 photos, several photos merged into one PDF) is part of Pro.
105×148 mm at a glance
| Physical size | 105×148 mm = 4.13×5.83 in |
|---|---|
| Pixels at 300 DPI | 1240×1748 px (2,167,520 pixels, 2.17 MP) |
| Shape | 105:148 (1:1.41), portrait (width ÷ height = 0.7095) |
| From a 12 MP phone photo | 519 pixels per inch after the crop to fill (46.8% cut) |
| Copies per sheet | 4 on A4 · 2 on US Letter |
| At 600 DPI | 2480×3496 px (8.67 MP) |
| Estimated JPEG (outdoor photo, quality 75, 300 DPI) | 546 KB |
| JPEG without a KB limit (panel default, quality 85) | 719 KB |
How 105×148 mm turns into pixels
An inch is exactly 25.4 mm, so at 300 DPI the pixel size is 105 mm ÷ 25.4 × 300 = 1240.157, rounded to 1240 px wide, and 148 mm ÷ 25.4 × 300 = 1748.031, rounded to 1748 px tall. 105×148 mm is a portrait shape with sides in the ratio 105:148 (1:1.41) (0.7095 as a decimal), 4.13×5.83 in in the other unit.
The same 105×148 mm needs 827×1165 px at 200 DPI and 2480×3496 px (8.67 MP) at 600 DPI. PixelFit writes the DPI you set into the JPEG header (the JFIF density field), so print software that reads it knows the file is meant to come out at 105×148 mm.
Where 105×148 mm is used
Each line comes from the reference listed under Sources, checked October 2026.
- A6 paper is 105 × 148 mm.
Is your photo sharp enough for 105×148 mm?
After the crop to fill, this is how many source pixels land on each inch of 105×148 mm. Above 300 DPI the picture is reduced to 300 DPI; below it, PixelFit has to enlarge the crop and fine detail softens.
| Starting image | Crop to fill keeps | Area lost | Pixels per inch at 105×148 mm | To reach 300 DPI |
|---|---|---|---|---|
| 12 MP phone photo (4032×3024, 4:3) | 2145×3024 (left and right cut) | 46.8% | 519 DPI | reduced (0.58×) |
| 24 MP camera photo (6000×4000, 3:2) | 2838×4000 (left and right cut) | 52.7% | 686 DPI | reduced (0.44×) |
| Full HD screenshot (1920×1080, 16:9) | 766×1080 (left and right cut) | 60.1% | 185 DPI | enlarged (1.62×) |
| Vertical phone video frame (1080×1920, 9:16) | 1080×1522 (top and bottom cut) | 20.7% | 261 DPI | enlarged (1.15×) |
105×148 mm in pixels at each print resolution
Pixels = millimetres ÷ 25.4 × DPI. The panel uses 300 DPI unless you change it; the file sizes are for a detailed outdoor photo saved as JPEG.
| Resolution | Pixels | Megapixels | JPEG q75 | JPEG q90 |
|---|---|---|---|---|
| 150 DPI | 620×874 | 0.54 MP | ≈ 137 KB | ≈ 221 KB |
| 200 DPI | 827×1165 | 0.96 MP | ≈ 247 KB | ≈ 396 KB |
| 300 DPI | 1240×1748 | 2.17 MP | ≈ 546 KB | ≈ 873 KB |
| 400 DPI | 1654×2331 | 3.86 MP | ≈ 935 KB | ≈ 1.47 MB |
| 600 DPI | 2480×3496 | 8.67 MP | ≈ 1.88 MB | ≈ 3.05 MB |
How large is a 105×148 mm file?
Saved at 300 DPI (1240×1748 px), a detailed outdoor photo of 105×148 mm comes to about 413 KB at JPEG quality 60, 546 KB at 75 and 873 KB at 90, and about 478 KB as WebP at 75. Dropping to 200 DPI (827×1165 px) brings quality 75 down to about 247 KB, but the print then holds fewer pixels per inch.
At 300 DPI the photo does not fit under 200 KB even at quality 30; it fits under 500 KB up to quality 69 and under 1 MB up to quality 92; under 2 MB it fits even at quality 95. Set the KB limit next to the size and PixelFit picks the highest quality that fits.
Printing 105×148 mm copies
Without margins or cutting gaps, 4 on an A4 sheet, 2 on US Letter (some turned sideways where that packs more). Print at 100% scale, never "fit to page", or a print of 105×148 mm comes out the wrong size; 1240×1748 px at 300 DPI is exact.
Sizes close to 105×148 mm
No other target in the PixelFit list has exactly 105:148. The nearest sizes (by pixel count and shape) and their crop from a 1240×1748 image:
- A4 at 150 DPI: 620:877 (1:1.41), 0.3% cropped (left and right cut), then 1.003× scale.
- 4×6 inch print: 2:3, 6% cropped (left and right cut), then 1.03× scale.
- 1200×1600 portrait: 3:4, 5.4% cropped (top and bottom cut), then 0.968× scale.
- 5×7 inch print: 5:7, 0.7% cropped (top and bottom cut), then 1.21× scale.
How to resize a picture to 105×148 mm
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Add the picture
Drop, paste or pick the photo in the PixelFit panel at the top of this page; it is decoded in your browser and never uploaded.
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Set the size
Pick mm as the unit, enter 105×148 mm and 300 DPI; the tool turns that into 1240×1748 pixels.
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Choose how it fits
Choose crop to fill to keep the 105:148 (1:1.41) frame without stretching (a phone photo loses 46.8%, left and right cut). Fit inside keeps the whole picture as a 1240×930 file instead; Pad with colour puts that on a full 1240×1748 canvas.
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Pick the format and download
Keep JPG (without a KB limit PixelFit saves at quality 85, about 719 KB for a detailed outdoor photo) so the 300 DPI stamp travels with the file, or choose PDF to get the picture as a PDF page, then download.
Sources
- Paper size (ISO 216 and North American sizes), Wikipedia, checked 31 October 2026: en.wikipedia.org/wiki/Paper_size
- Inch (1 inch is exactly 25.4 mm), Wikipedia, checked 31 October 2026: en.wikipedia.org/wiki/Inch
- Measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, from the sample photo Hartz Lake at Hartz Mountain.jpg by JustinH (Wikimedia Commons user) (CC0 1.0): commons.wikimedia.org/wiki/File:Hartz_Lake_at_Hartz_Mount…
Frequently asked questions
How do I resize a photo to 105×148 mm?
Open the photo in the PixelFit panel on this page, set 105×148 mm at 300 DPI (1240 × 1748 px), choose crop to fill and download. From a 12 MP phone photo that crops 46.8% (left and right cut) and still leaves 519 pixels per inch to work with.
How many pixels is 105×148 mm?
105×148 mm is 1240×1748 px at 300 DPI, 2480×3496 px at 600 DPI and 620×874 px at 150 DPI (pixels = mm ÷ 25.4 × DPI).
What DPI should a 105×148 mm photo have?
PixelFit uses 300 DPI, which makes 105×148 mm exactly 1240×1748 px; print it at 100% scale. At 150 DPI the same 1240×1748 pixels would print 8.27×11.65 in, twice as large and with half the density.
How many 105×148 mm photos fit on one sheet?
Without margins, 4 fit on A4 (210×297 mm), 2 on US Letter, turning them sideways where that packs more. Leave a few millimetres for cutting.
How big is a 105×148 mm JPEG at 300 DPI?
For a detailed outdoor photo about 546 KB at quality 75 (413 KB at 60, 873 KB at 90, 719 KB at the panel's default quality 85); a head-and-shoulders portrait is about 188 KB at quality 75, estimated from measured encodes of real sample photos at 1240×1748 px.
Related
Nearby sizes
- A4 at 150 DPI 620:877 (1:1.41)
- 4×6 inch print 2:3
- 1200×1600 portrait 3:4
- 5×7 inch print 5:7
- 1200×1500 portrait 4:5
- 1080×1440 portrait 3:4