Feet per pixel to zoom level
Type a value in ft/px to get it in zoom instantly.
18zoom
That's 2× as detailed as zoom 19 (buildings), while zoom 16 (streets) is 4× coarser. At latitude 45° that is about 0.4224 m per pixel.
Convert the other way: zoom to ft/px
What it means
How much ground per pixel?
At the equator, for 256-pixel Web Mercator tiles; multiply by the cosine of the latitude elsewhere. Map scale assumes a 96 dpi screen.
The math
How to convert ft/px to zoom
m/px = 156,543.03 ÷ 2^zoom at the equator; zoom = log₂(156,543.03 ÷ m/px).
Example: 1.96 ft/px = 17.9994 zoom.
Every unit
That zoom in every unit
Tables
ft/px to zoom conversion table
| ft/px | zoom |
|---|---|
| 0.245 ft/px | 20.9994 zoom |
| 0.49 ft/px | 19.9994 zoom |
| 0.98 ft/px | 18.9994 zoom |
| 1.96 ft/px | 17.9994 zoom |
| 3.92 ft/px | 16.9994 zoom |
| 7.84 ft/px | 15.9994 zoom |
| 15.7 ft/px | 14.9976 zoom |
| 31.3 ft/px | 14.0022 zoom |
| 62.7 ft/px | 12.9999 zoom |
| 125 ft/px | 12.0045 zoom |
| 502 ft/px | 9.99872 zoom |
| 2,010 ft/px | 7.99729 zoom |
| 8,020 ft/px | 6.00088 zoom |
| 32,100 ft/px | 3.99998 zoom |
| 128,000 ft/px | 2.00448 zoom |
zoom to ft/px conversion table
| zoom | ft/px |
|---|---|
| 0 zoom | 513,593 ft/px |
| 2 zoom | 128,398 ft/px |
| 4 zoom | 32,099.5 ft/px |
| 6 zoom | 8,024.88 ft/px |
| 8 zoom | 2,006.22 ft/px |
| 10 zoom | 501.555 ft/px |
| 12 zoom | 125.389 ft/px |
| 13 zoom | 62.6944 ft/px |
| 14 zoom | 31.3472 ft/px |
| 15 zoom | 15.6736 ft/px |
| 16 zoom | 7.8368 ft/px |
| 17 zoom | 3.9184 ft/px |
| 18 zoom | 1.9592 ft/px |
| 19 zoom | 0.9796 ft/px |
| 20 zoom | 0.4898 ft/px |
| 21 zoom | 0.2449 ft/px |
Quick answers
Quick answers
- How many zoom is 1 ft/px?
- 1 ft/px is 18.9703 zoom.
- How many zoom is 10 ft/px?
- 10 ft/px is 15.6483 zoom.
- How many zoom is 1.96 ft/px?
- 1.96 ft/px is 17.9994 zoom.
The units
About these units
Feet per pixel (ft/px)
Ground resolution in feet.
Zoom level (zoom)
Web Mercator zoom level, 0 (world) to about 22.
Keep going