IlluminancePhot to Foot Candles

Phot to Foot-candles

Methodology·How We Verify

Snapshot

1 Phot equals 929.0304 Foot-candles.

Reference basis: This conversion uses exact lux-based illuminance definitions.
Example: For 10 Phot, the result equals 9,290.304 Foot-candles.

Interactive conversion

Converter Calculator

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

929.0304 Foot-candles (fc)

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API and AI agent access

Phot to Foot-candles.

Machine-readable identifiers

Conversion family: illuminance
Source unit: phot
Target unit: foot_candles

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": "illuminance",
  "value": 1,
  "from": "phot",
  "to": "foot_candles"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "illuminance",
    "value": 1,
    "from": "phot",
    "to": "foot_candles",
    "result": {
      "raw": 929.0304,
      "display": "929.0304"
    },
    "canonicalPath": "/illuminance/phot-to-foot-candles/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Multiply by 929.0304 because 1 ph = 10000 lux and 1 fc = 10.763910416709722 lux.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Phot = 929.0304 Foot-candles (using exact lux-based illuminance definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Phot (ph)	Foot-candles (fc)
1	929.0304
10	9,290.304
50	46,451.52
100	92,903.04
300	278,709.12
500	464,515.2
1000	929,030.4
10000	9,290,304

Questions & answers

Frequently Asked Questions

What is 1 phot in foot-candles?

1 Phot equals 929.0304 Foot-candles on this page.

When would I convert phot to foot-candles?

This route is useful when translating illuminance values between lux-based and foot-candle scales for architectural lighting, workplace standards, and exposure measurements.

How do I reverse Phot to Foot-candles?

Use the mirror Foot-candles to Phot route; it applies the inverse relationship with the same illuminance assumptions.