Camera Focal EquivalenceFocal Length Mm to Horizontal Angle of View Degrees At One Inch 13 2mm

Focal length (mm) to Horizontal angle of view (degrees) for 1-inch sensor 13.2mm

Snapshot

On 1-inch sensor 13.2mm, a 50 mm lens gives about 15.039141 horizontal angle of view. Conversion Encyclopedia keeps the same sensor profile across the calculator, common values, and reverse page for this page.

Sensor profile: 1-inch sensor 13.2mm (13.2 mm width, crop factor 2.73).
Example: For 14 Focal length (mm), this gives 50.481059 Horizontal angle of view (degrees) on 1-inch sensor 13.2mm.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

162.768704 Horizontal angle of view (degrees)

Switch

API and AI agent access

Focal length (mm) to Horizontal angle of view (degrees) for 1-inch sensor 13.2mm. sensor profile: one-inch-13-2mm.

Machine-readable identifiers

Conversion family: camera-focal-equivalence
Source unit: focal_length_mm
Target unit: horizontal_angle_of_view_degree
Sensor profile: one-inch-13-2mm

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "camera-focal-equivalence",
  "value": 1,
  "from": "focal_length_mm",
  "to": "horizontal_angle_of_view_degree",
  "parameters": {
    "sensorProfile": "one-inch-13-2mm"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "camera-focal-equivalence",
    "value": 1,
    "from": "focal_length_mm",
    "to": "horizontal_angle_of_view_degree",
    "result": {
      "raw": 162.7687036316718,
      "display": "162.768704"
    },
    "canonicalPath": "/camera-focal-equivalence/focal-length-mm-to-horizontal-angle-of-view-degrees-at-one-inch-13-2mm/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

1-inch sensor 13.2mm uses crop factor 2.73 and sensor width 13.2 mm. HFOV = 2 x atan(13.2 / (2 x focal_mm)) in degrees. For input 1 mm, output is 162.768703632 deg.

Method & Sensor Profile

Sensor basis: 1-inch sensor 13.2mm profile with crop factor 2.73 and sensor width 13.2 mm.
Profile reference: focal-length and aperture equivalence use the same crop model, while angle-of-view routes use the same fixed sensor width geometry.
Consistency rule: forward and reverse pages keep the same sensor profile; only the formula direction changes.

Common Conversion Values

Focal length (mm)	Horizontal angle of view (degrees)
14	50.481059
24	30.752502
28	26.526657
35	21.357894
50	15.039141
70	10.772501
85	8.87988
135	5.597797
200	3.78015

Questions & answers

Frequently Asked Questions

Which sensor assumptions are fixed for focal length mm to horizontal angle of view (degrees)?

Focal length mm to horizontal angle of view (degrees) is fixed to 1-inch sensor 13.2mm, crop factor 2.73, sensor width 13.2 mm.

How do I reverse mm to deg for 1-inch sensor 13.2mm?

Use the opposite-direction page for 1-inch sensor 13.2mm to convert horizontal angle of view (degrees) back to focal length (mm) with the same sensor assumptions.

Can focal length mm to horizontal angle of view (degrees) replace full lens-design simulation?

No. Focal length mm to horizontal angle of view (degrees) provides framing and geometry approximations, not full optical-model behavior.