Camera Focal EquivalenceFocal Length Mm to Full Frame Equivalent Mm At Smartphone 1 1 3

Focal length (mm) to 35mm equivalent focal length (mm) for Smartphone 1/1.3" class

Snapshot

On Smartphone 1/1.3" class, a 50 mm lens gives about a 187.5 mm full-frame equivalent. Conversion Encyclopedia keeps the same sensor profile across the calculator, common values, and reverse page for this page.

Sensor profile: Smartphone 1/1.3" class (9.6 mm width, crop factor 3.75).
Example: For 14 Focal length (mm), this corresponds to 52.5 35mm equivalent focal length (mm) on Smartphone 1/1.3" class.

Interactive conversion

Converter Calculator

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

3.75 35mm equivalent focal length (mm)

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API and AI agent access

Focal length (mm) to 35mm equivalent focal length (mm) for Smartphone 1/1.3" class. sensor profile: smartphone-1-1-3.

Machine-readable identifiers

Conversion family: camera-focal-equivalence
Source unit: focal_length_mm
Target unit: full_frame_equivalent_mm
Sensor profile: smartphone-1-1-3

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": "full_frame_equivalent_mm",
  "parameters": {
    "sensorProfile": "smartphone-1-1-3"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "camera-focal-equivalence",
    "value": 1,
    "from": "focal_length_mm",
    "to": "full_frame_equivalent_mm",
    "result": {
      "raw": 3.75,
      "display": "3.75"
    },
    "canonicalPath": "/camera-focal-equivalence/focal-length-mm-to-full-frame-equivalent-mm-at-smartphone-1-1-3/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Smartphone 1/1.3" class uses crop factor 3.75 and sensor width 9.6 mm. equivalent_mm = focal_mm x 3.75. For input 1 mm, output is 3.75 eq mm.

Method & Sensor Profile

Sensor basis: Smartphone 1/1.3" class profile with crop factor 3.75 and sensor width 9.6 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)	35mm equivalent focal length (mm)
14	52.5
24	90
28	105
35	131.25
50	187.5
70	262.5
85	318.75
135	506.25
200	750

Questions & answers

Frequently Asked Questions

Which sensor assumptions are fixed for focal length mm to full-frame equivalent mm?

Focal length mm to full-frame equivalent mm is fixed to Smartphone 1/1.3" class, crop factor 3.75, sensor width 9.6 mm.

How do I reverse mm to eq mm for Smartphone 1/1.3" class?

Use the opposite-direction page for Smartphone 1/1.3" class to convert 35mm equivalent focal length (mm) back to focal length (mm) with the same sensor assumptions.

Can focal length mm to full-frame equivalent mm replace full lens-design simulation?

No. Focal length mm to full-frame equivalent mm provides framing and geometry approximations, not full optical-model behavior.