Resolution

20 megapixels

What 20 megapixels means in pixels, prints, file sizes and sharpness.

5,477×3,651
Pixels (3:2)
18.3×12.2 in
Max print at 300 DPI
≈22 MB
RAW file (compressed)

20 MP in pixels#

Aspect ratioPixel dimensions
3:25,477 × 3,651
4:35,164 × 3,873
16:95,963 × 3,354
1:14,472 × 4,472

Maximum print sizes#

ResolutionQualityInchesCentimetres
360 DPIExceptional (close inspection)15.2 × 10.1 in39 × 26 cm
300 DPIPhoto-lab standard18.3 × 12.2 in46 × 31 cm
240 DPIFine-art inkjet22.8 × 15.2 in58 × 39 cm
200 DPILarge wall print27.4 × 18.3 in70 × 46 cm
150 DPIPoster, viewed from 1 m+36.5 × 24.3 in93 × 62 cm
100 DPIBillboard / banner54.8 × 36.5 in139 × 93 cm

Typical file sizes#

FormatSize per image
JPEG (high quality)≈7 MB
RAW 14-bit (lossless compressed)≈22 MB
RAW 14-bit (uncompressed)≈35 MB
TIFF 8-bit≈60 MB
TIFF 16-bit≈120 MB

Pixel size at 20 MP#

SensorPixel pitchDiffraction starts ≈
Full frame6.57 µmf/9.8
APS-C4.29 µmf/6.4
Micro Four Thirds3.35 µmf/5.0
1-inch2.56 µmf/3.8
1/1.3" phone1.86 µmf/2.8

Other resolutions#

Frequently asked questions#

How big can I print 20 megapixels?

18.3 × 12.2 inches at 300 DPI, or 37 × 24 inches at 150 DPI for posters.

Is 20 MP enough?

Yes — plenty for web, 4K displays (8.3 MP) and A3 prints.

Last updated October 03, 2026 · How we calculate · Sources