Convert Foot-candle to Phot

Please provide values below to convert Foot-candle [fc] to Phot [ph]

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Unit Information

Lux (lx)

Definition: The SI unit of illuminance, equal to one lumen per square meter.

History: From Latin "lux" meaning light.

Current Use: Used for measuring light levels in photography and architecture.

Foot-candle (fc)

Definition: A unit of illuminance equal to one lumen per square foot.

History: Traditional imperial unit.

Current Use: Used in the US for lighting design.

Phot (ph)

Definition: A CGS unit of illuminance equal to 10,000 lux (1 lumen per square centimeter).

History: From Greek "phos" meaning light; used in photometry within the CGS system.

Current Use: Rarely used in modern practice, but appears in legacy literature and some scientific contexts.

Nox (nx)

Definition: An obsolete unit of illuminance equal to 0.001 lux.

History: Historically used to describe very low levels of illumination.

Current Use: Primarily of historical interest; included for completeness and reference.

All Unit Conversions

Lux to Foot-candleLux to PhotLux to NoxFoot-candle to LuxFoot-candle to PhotFoot-candle to NoxPhot to LuxPhot to Foot-candlePhot to NoxNox to LuxNox to Foot-candleNox to Phot

Did you know?

  • Illuminance is the measure of the amount of light falling onto a surface.
  • The SI unit for illuminance is lux (lx), which is one lumen per square meter.
  • Direct sunlight provides an illuminance of about 100,000 lux.

Related Categories

Piece
Electromagnetic
Energy
Area

Common Conversions

Convert Lux to Foot-candle

lx / 10.764

Convert Foot-candle to Lux

fc * 10.764

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Convert Foot-candle to Phot

How this conversion works

Converting Foot-candle (fc) to Phot (ph) is straightforward with Unitly. We apply lossless base-unit math under the hood so you get consistent answers whether you are auditing data pipelines, planning infrastructure, or double-checking homework.

Quick reference: 1 fc equals 0.00107639 ph. Conversely, 1 ph equals 929.031299064466 fc. Combine these ratios with the in-page calculator to convert any value instantly.

About Foot-candle

Definition: A unit of illuminance equal to one lumen per square foot.

History: Traditional imperial unit.

Current use: Used in the US for lighting design.

About Phot

Definition: A CGS unit of illuminance equal to 10,000 lux (1 lumen per square centimeter).

History: From Greek "phos" meaning light; used in photometry within the CGS system.

Current use: Rarely used in modern practice, but appears in legacy literature and some scientific contexts.

Related conversions

Questions people ask

What is illuminance?
Illuminance measures how much luminous flux is spread over a given area.
How many lumens does a 60W bulb produce?
A standard 60W incandescent bulb produces about 800 lumens.

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