Photo size reference

16×20 Photo Size: Pixels, Resolution and Crop

16 × 20 photo measures 406.4 × 508 mm. Its pixel dimensions change with PPI; the physical trim size does not.

Quick answer

A 16 × 20 inch print measures 406.4 × 508 mm and needs 4800 × 6000 pixels at 300 PPI. It uses the same 4:5 shape as 8 × 10 and crops about 16.7% of a 3:2 camera image when filled.

300 PPI: 4800 × 6000 px · 28.8 megapixels
Pixel table

16 × 20 pixels by PPI

Portrait values are rounded to the nearest whole pixel after converting the native physical dimensions.

PPIWidthHeightUse context
721152 px1440 pxLayout or screen reference
961536 px1920 pxLayout or screen reference
1502400 px3000 pxPrint / distance dependent
2403840 px4800 pxPrint / distance dependent
3004800 px6000 pxDetailed print target
6009600 px12000 pxDetailed print target
Large-print range

Resolution changes the file requirement

A 16 × 20 needs 2400 × 3000 px at 150 PPI, 3840 × 4800 px at 240 PPI or 4800 × 6000 px at 300 PPI.

Check your large-print file
Crop warning

A 3:2 frame loses about 16.7%

The 4:5 print is less wide than a 3:2 camera image. Position the crop before judging effective PPI because the removed area also removes pixels.

Preview the crop
Related format

8 × 10 shares the same ratio

An image already composed at 4:5 fits both 8 × 10 and 16 × 20 by shape. The larger print still needs twice as many pixels along each edge for equal PPI.

Compare 8 × 10
Change the resolution

Calculate 16 × 20 at any PPI.

Interactive calculator
pixels = millimetres ÷ 25.4 × PPI

Paper preset → pixel dimensions

Quick targets
Calculated resultsUpdates as you change the inputs
Trim sizeResult
406.4 × 508 mm
Trim size in inchesResult
16 × 20 in
16 × 20 at common targets
TargetWidthHeight
150 PPI2400 px3000 px
240 PPI3840 px4800 px
300 PPI4800 px6000 px
Print setup

Trim first. Add production values second.

16 × 20 identifies the final physical format. Bleed expands the artwork beyond that edge; a safe margin moves important content inward. Those extra values depend on the print provider.

Calculate bleed and safe area →
Check before you print

Use the image, not a guess.

Run the source pixels against the exact size you plan to order.

Check an image