Foot-candles to Phot

1 Foot-candle equals 0.001076 Phot using exact lux-based illuminance definitions.

Direct Answer

1 Foot-candle equals 0.001076 Phot

This conversion uses exact lux-based illuminance definitions.

For 10 Foot-candles, the result equals 0.010764 Phot.

Converter Calculator

0.001076 Phot (ph)

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Explanation

Formula: Phot = Foot-candles × 0.001076. Why: phot is tied exactly to lux through the square-centimeter to square-meter area relationship, so the route normalizes through lux before applying the target unit.

Foot-candles (fc): an imperial illuminance unit based on lumens per square foot, common in lighting design, building standards, and photographic exposure references.

Phot (ph): a CGS illuminance unit equal to one lumen per square centimeter, which is exactly 10,000 lux.

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

This conversion is purely multiplicative because both units reduce through lux using fixed illuminance definitions with no offset.

Method & Reference

Method basis: exact conversion formula shown in Direct Answer.
Applied factor: 1 Foot-candle = 0.001076 Phot (using exact lux-based illuminance definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Foot-candles (fc)	Phot (ph)
1	0.001076
10	0.010764
50	0.05382
100	0.107639
300	0.322917
500	0.538196
1,000	1.076391
10,000	10.76391

Frequently Asked Questions

What is 1 foot-candle in phot?

1 Foot-candle equals 0.001076 Phot on this page.

Does this Foot-candles to Phot page use the fixed lux equivalent for foot-candles?

Yes. Foot-candle routes use one fixed lux equivalent on this page, so architectural lighting and exposure values stay aligned across the direct answer, calculator, and table.

When would I convert foot-candles to phot?

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 Foot-candles to Phot?

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