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Light Converters

Illumination Converter

Result

... Phot = ... Foot-candle

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Phot to Foot-candle Converter

Use this page to convert phot values into foot-candle, with background details, formulas, a worked example, and a quick conversion table.

Conversion formula

1 ph = 929.0304 fc

1 fc = 0.00107639104167097 ph

Example: 500 ph = 464,515.2 fc

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Lux to Meter-candleLux to Centimeter-candleLux to Foot-candleLux to PhotMeter-candle to LuxMeter-candle to Centimeter-candleMeter-candle to Foot-candleMeter-candle to PhotCentimeter-candle to LuxCentimeter-candle to Meter-candle

Phot

One phot is equal to 10000 lux.

History: The phot is a CGS photometric unit equal to one lumen per square centimeter.

Current use: Used mainly in older photometric tables and reference conversions.

Also written as ph.

Foot-candle

One foot-candle is equal to one lumen per square foot.

History: Foot-candle is based on one lumen per square foot and became common in US lighting practice.

Current use: Used in US lighting design, building codes, photography, and workplace illumination standards.

Also written as fc.

Phot to Foot-candle table

Phot [ph]Foot-candle [fc]
0.01 ph9.290304 fc
0.1 ph92.90304 fc
1 ph929.0304 fc
2 ph1,858.0608 fc
5 ph4,645.152 fc
10 ph9,290.304 fc
20 ph18,580.608 fc
50 ph46,451.52 fc
100 ph92,903.04 fc

Frequently asked questions

  • How many Foot-candle (fc) are in one Phot (ph)?

    One Phot equals 929.0304 Foot-candle.

  • How do you convert Phot to Foot-candle?

    Multiply the Phot value by 929.0304 to get the result in Foot-candle.

  • How do you convert Foot-candle back to Phot?

    Multiply the Foot-candle value by 0.00107639104167097 to get back to Phot.

  • What is 500 Phot in Foot-candle?

    500 Phot equals 464,515.2 Foot-candle.