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Resize a photo to 148×210 mm (1748×2480 pixels)
A 148×210 mm print at 300 DPI is 1748×2480 pixels. Set 148×210 mm and 300 DPI in the panel and choose crop to fill: a 4:3 phone photo loses 47.1% and still gives 366 pixels per inch. As a JPEG, a detailed outdoor photo comes to about 1.34 MB at the panel's default quality 85 and 1.02 MB at quality 75.
148×210 mm at 300 DPI (1748×2480 px)
JPG · no file-size limit · 148x210 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. 148x210 mm at 300 DPI is 1748x2480 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.
148×210 mm at a glance
| Physical size | 148×210 mm = 5.83×8.27 in |
|---|---|
| Pixels at 300 DPI | 1748×2480 px (4,335,040 pixels, 4.34 MP) |
| Shape | 74:105 (1:1.42), portrait (width ÷ height = 0.7048) |
| From a 12 MP phone photo | 366 pixels per inch after the crop to fill (47.1% cut) |
| Copies per sheet | 2 on A4 · 1 on US Letter |
| At 600 DPI | 3496×4961 px (17.3 MP) |
| Estimated JPEG (outdoor photo, quality 75, 300 DPI) | 1.02 MB |
| JPEG without a KB limit (panel default, quality 85) | 1.34 MB |
How 148×210 mm turns into pixels
An inch is exactly 25.4 mm, so at 300 DPI the pixel size is 148 mm ÷ 25.4 × 300 = 1748.031, rounded to 1748 px wide, and 210 mm ÷ 25.4 × 300 = 2480.315, rounded to 2480 px tall. 148×210 mm is a portrait shape with sides in the ratio 74:105 (1:1.42) (0.7048 as a decimal), 5.83×8.27 in in the other unit.
The same 148×210 mm needs 1165×1654 px at 200 DPI and 3496×4961 px (17.3 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 148×210 mm.
Where 148×210 mm is used
Each line comes from the reference listed under Sources, checked October 2026.
- A5 paper is 148 × 210 mm.
Is your photo sharp enough for 148×210 mm?
After the crop to fill, this is how many source pixels land on each inch of 148×210 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 148×210 mm | To reach 300 DPI |
|---|---|---|---|---|
| 12 MP phone photo (4032×3024, 4:3) | 2131×3024 (left and right cut) | 47.1% | 366 DPI | reduced (0.82×) |
| 24 MP camera photo (6000×4000, 3:2) | 2819×4000 (left and right cut) | 53% | 484 DPI | reduced (0.62×) |
| Full HD screenshot (1920×1080, 16:9) | 761×1080 (left and right cut) | 60.4% | 131 DPI | enlarged (2.3×) |
| Vertical phone video frame (1080×1920, 9:16) | 1080×1532 (top and bottom cut) | 20.2% | 185 DPI | enlarged (1.62×) |
148×210 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 | 874×1240 | 1.08 MP | ≈ 279 KB | ≈ 447 KB |
| 200 DPI | 1165×1654 | 1.93 MP | ≈ 488 KB | ≈ 780 KB |
| 300 DPI | 1748×2480 | 4.34 MP | ≈ 1.02 MB | ≈ 1.63 MB |
| 400 DPI | 2331×3307 | 7.71 MP | ≈ 1.69 MB | ≈ 2.75 MB |
| 600 DPI | 3496×4961 | 17.3 MP | ≈ 3.47 MB | ≈ 5.71 MB |
How large is a 148×210 mm file?
Saved at 300 DPI (1748×2480 px), a detailed outdoor photo of 148×210 mm comes to about 792 KB at JPEG quality 60, 1.02 MB at 75 and 1.63 MB at 90, and about 901 KB as WebP at 75. Dropping to 200 DPI (1165×1654 px) brings quality 75 down to about 488 KB, but the print then holds fewer pixels per inch.
At 300 DPI the photo does not fit under 200 KB and 500 KB even at quality 30; it fits under 1 MB up to quality 72 and under 2 MB up to quality 93. Set the KB limit next to the size and PixelFit picks the highest quality that fits.
Printing 148×210 mm copies
Without margins or cutting gaps, 2 on an A4 sheet, 1 on US Letter (some turned sideways where that packs more). Print at 100% scale, never "fit to page", or a print of 148×210 mm comes out the wrong size; 1748×2480 px at 300 DPI is exact.
Sizes close to 148×210 mm
No other target in the PixelFit list has exactly 74:105. The nearest sizes (by pixel count and shape) and their crop from a 1748×2480 image:
- 5×7 inch print: 5:7, 1.3% cropped (top and bottom cut), then 0.858× scale.
- A4 at 150 DPI: 620:877 (1:1.41), 0.3% cropped (top and bottom cut), then 0.709× scale.
- A4 (210×297 mm): 620:877 (1:1.41), 0.3% cropped (top and bottom cut), then 1.419× scale.
- A6 (105×148 mm): 310:437 (1:1.41), 0.6% cropped (top and bottom cut), then 0.709× scale.
How to resize a picture to 148×210 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 148×210 mm and 300 DPI; the tool turns that into 1748×2480 pixels.
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Choose how it fits
Choose crop to fill to keep the 74:105 (1:1.42) frame without stretching (a phone photo loses 47.1%, left and right cut). Fit inside keeps the whole picture as a 1748×1311 file instead; Pad with colour puts that on a full 1748×2480 canvas.
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Pick the format and download
Keep JPG (without a KB limit PixelFit saves at quality 85, about 1.34 MB 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 148×210 mm?
Open the photo in the PixelFit panel on this page, set 148×210 mm at 300 DPI (1748 × 2480 px), choose crop to fill and download. From a 12 MP phone photo that crops 47.1% (left and right cut) and still leaves 366 pixels per inch to work with.
How many pixels is 148×210 mm?
148×210 mm is 1748×2480 px at 300 DPI, 3496×4961 px at 600 DPI and 874×1240 px at 150 DPI (pixels = mm ÷ 25.4 × DPI).
What DPI should a 148×210 mm photo have?
PixelFit uses 300 DPI, which makes 148×210 mm exactly 1748×2480 px; print it at 100% scale. At 150 DPI the same 1748×2480 pixels would print 11.65×16.53 in, twice as large and with half the density.
How many 148×210 mm photos fit on one sheet?
Without margins, 2 fit on A4 (210×297 mm), 1 on US Letter, turning them sideways where that packs more. Leave a few millimetres for cutting.
How big is a 148×210 mm JPEG at 300 DPI?
For a detailed outdoor photo about 1.02 MB at quality 75 (792 KB at 60, 1.63 MB at 90, 1.34 MB at the panel's default quality 85); a head-and-shoulders portrait is about 346 KB at quality 75, estimated from measured encodes of real sample photos at 1748×2480 px.
Related
Nearby sizes
- 5×7 inch print 5:7
- A4 at 150 DPI 620:877 (1:1.41)
- A4 (210×297 mm) 620:877 (1:1.41)
- A6 (105×148 mm) 310:437 (1:1.41)
- 2048×2048 square 1:1
- 8×10 inch print 4:5