5 × 7 photo measures 127 × 177.8 mm. Its pixel dimensions change with PPI; the physical trim size does not.
Quick answer
A 5 × 7 inch photo measures 127 × 177.8 mm and needs 1500 × 2100 pixels at 300 PPI. Its 5:7 ratio crops about 6.7% of a typical 3:2 camera frame when filled edge to edge.
300 PPI: 1500 × 2100 px · aspect ratio 5:7
Pixel table
5 × 7 pixels by PPI
Portrait values are rounded to the nearest whole pixel after converting the native physical dimensions.
PPI
Width
Height
Use context
72
360 px
504 px
Layout or screen reference
96
480 px
672 px
Layout or screen reference
150
750 px
1050 px
Print / distance dependent
240
1200 px
1680 px
Print / distance dependent
300
1500 px
2100 px
Detailed print target
600
3000 px
4200 px
Detailed print target
Crop warning
A 3:2 photo loses about 6.7%
A 3:2 image is slightly wider than a 5:7 frame. Filling the print retains about 93.3% of the image area; fitting the whole image may leave borders.
Photo labs can apply a small production crop beyond the ratio calculation. Keep critical details away from the edge and confirm border options.
Change the resolution
Calculate 5 × 7 at any PPI.
Interactive calculator
pixels = millimetres ÷ 25.4 × PPI
Paper preset → pixel dimensions
Quick targets
Calculated resultsUpdates as you change the inputs
5 × 7 pixel dimensionsPrimary result
1500 × 2100 px
Trim sizeResult
127 × 177.8 mm
Trim size in inchesResult
5 × 7 in
5 × 7 at common targets
Target
Width
Height
150 PPI
750 px
1050 px
240 PPI
1200 px
1680 px
300 PPI
1500 px
2100 px
Print setup
Trim first. Add production values second.
5 × 7 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.