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Field of View

Compute angle of view (deg) from focal length and sensor width.

Input Data

Input Focal length.
mm
Input Sensor width.
mm

Results

39.5978°
AoV = 2·atan(w/(2f)).

At a glance:Field of View: enter parameters to compute results; complements related calculators.

Formula

AoV = 2·atan(width / (2·focal)).

How to Use

  1. Enter focal, sensor width.
  2. It returns AoV (deg).

Case Studies

50mm, FF → 39.6°

Wide lenses are short focal, large AoV.

FAQ

Full-frame?

Full-frame width 36mm; APS-C ≈ 24mm.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Field of View（/photography/field-of-view）。