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Convert Phot to Foot-candle

Use this free converter to change phot (ph) into foot-candles (fc). Phot and foot-candle both measure illuminance. As a quick reference, 1 ph equals 929.0304 fc, and 1 fc equals 0.001076391 ph.

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Foot-candle (fc)
929.0304

1 ph = 929.0304 fc

Illuminance conversion table

PhotFoot-candle
0.019.290304
0.192.90304
0.5464.5152
1929.0304
21858.0608
32787.0912
54645.152
109290.304
2018580.608
2523225.76
5046451.52
10092903.04
1,000929030.4

How to convert Phot to Foot-candle

Multiply the phot value by 929.0304 to get foot-candles.

  1. Enter the number of phot you want to convert.
  2. The converter instantly shows the equivalent value in foot-candles.
  3. Worked example: 15 ph × 929.0304 = 13935.456 fc.
  4. Use the swap button to reverse the conversion (foot-candle to phot).

About these units

Phot (ph)

Definition
A phot (ph) is a CGS unit of illuminance equal to 10,000 lux, or one lumen per square centimeter.
History
It was part of the CGS system, predating the SI, and is now largely obsolete.
Current use
The phot is rarely used today, appearing only in older technical literature.

Foot-candle (fc)

Definition
A foot-candle (fc) is the illuminance produced by one lumen per square foot, equal to about 10.764 lux.
History
It originated in the era before the metric system and takes its name from the illuminance one foot from a standard candle.
Current use
Foot-candles remain the standard lighting unit in the United States for architectural and stage-lighting specifications.

Frequently asked questions

How many foot-candles are in a phot?

There are 929.0304 fc in 1 ph. To convert, multiply the number of phot by 929.0304.

How do I convert phot to foot-candles?

Multiply the phot value by 929.0304 to get foot-candles. For example, 10 ph = 9290.304 fc.

Is this phot-to-foot-candle converter free?

Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.

Convert Phot to other illuminance units

Unit1 Phot equals
Lux (lx)10000 lx
Millilux (mlx)10000000 mlx
Kilolux (klx)10 klx
Foot-candle (fc)929.0304 fc
Nox (nx)10000000 nx

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