Convert Pixels per metre to Pixels per foot
Convert Pixels per metre (px/m) to Pixels per foot (px/ft) instantly and accurately.
Conversion Formula
px/ft = px/m × 0.3048
About Pixels per metre
The pixel per metre (px/m) is the SI-coherent form of image resolution. Because 1 inch = 0.0254 m exactly (international inch, 1959), 1 PPI = 1/0.0254 ≈ 39.37 px/m and 1 px/m = 0.0254 PPI. EXIF (IEC 61966-3) stores resolution as pixels per inch (ResolutionUnit = 2) or pixels per centimetre (ResolutionUnit = 3); px/m is used when normalising to SI for scientific or GIS workflows. Satellite remote-sensing GSD is often given in metres per pixel (the inverse); WorldView-3 at 0.31 m/px panchromatic ≈ 3.23 px/m. An A4 document scanned at 300 PPI ≈ 11,811 px/m. 1 px/m = 0.0254 PPI ≈ 0.00254 px/cm.
About Pixels per foot
The pixel per foot (px/ft) is an imperial resolution unit used in architectural visualisation, large-format display engineering, and document scanning where distances are measured in feet. The foot is exactly 0.3048 m = 12 in (international foot, 1959), giving 1 px/ft = 1/12 PPI ≈ 0.08333 PPI. Microfilm scanners for engineering drawing digitisation (ANSI/AIIM MS23) are specified in px/ft; a 200 px/ft scan of a 24-inch D-size drawing yields 400 pixels across the 2-foot width. Outdoor LED walls at P6 pixel pitch (6 mm) covering one foot ≈ 50.8 px/ft. Building plans at 1:48 scale reduce 1 actual foot to 0.25 in on paper, requiring ≥ 3 px/ft for legibility. 1 px/ft = 1/12 PPI ≈ 0.083333 PPI ≈ 3.281 px/m.
Quick Reference Table
| Pixels per metre (px/m) | Pixels per foot (px/ft) |
|---|---|
| 1 px/m | 0.3048 px/ft |
| 2 px/m | 0.6096 px/ft |
| 5 px/m | 1.524 px/ft |
| 10 px/m | 3.048 px/ft |
| 25 px/m | 7.62 px/ft |
| 50 px/m | 15.24 px/ft |
| 100 px/m | 30.48 px/ft |