Focal Length Calculator
Calculate field of view, crop factor equivalents, and lens coverage for different camera sensors.
Lens & Camera Settings
Height of subject to fill frame (e.g., 1.8m for person)
Field of View
46.8°
50mm equivalent • Standard
Field of View Details
Horizontal FOV39.6°
Vertical FOV27.0°
Diagonal FOV46.8°
Coverage at 10m
Horizontal Coverage7.20 m
Vertical Coverage4.80 m
Lens Information
Actual Focal Length50mm
35mm Equivalent50mm
Crop Factor1x
Lens TypeStandard
Min Distance for Subject3.80m
Focal Length Guide
< 24mmArchitecture, landscapes
24-35mmStreet, environmental
35-60mmGeneral purpose
60-100mmPortraits
100-200mmSports, wildlife
> 200mmBirds, distant subjects