Foot-Candle to Phot Converter
Quick answer
To convert Foot-Candles to Phots, multiply by 0.001076391 (or divide by 929.0304359661). Therefore, 1 Foot-Candle (fc) equals 0.00107639 Phots (ph).
Formula: ph = fc × 0.001076391. Worked example: 10 fc = 0.010764 ph.
Convert Foot-Candle (fc) to Phot (ph) online with our free unit converter. In illuminance, 1 fc = 0.001076 ph. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Foot-Candle to Phot
- Step 1 — start with the formula. ph = fc × 0.001076391
- Step 2 — substitute your figure. 10 fc × 0.001076391
- Step 3 — read the result. 10 fc = 0.010764 ph
- Step 4 — check it in reverse. fc = ph × 929.0304359661 returns 10.0001 fc, which matches the figure you started with.
Illuminance Converter
4 units available
1 fc = 0.001076 ph
Formula:
ph = fc × 0.001076391With your value: 1 fc = 0.00107639 ph
Other Foot-Candle to Phot conversions
Foot-Candle to Phot Conversion Table
| Foot-Candle (fc) | Phot (ph) |
|---|---|
| 0.5 | 0.000538 |
| 1 | 0.001076 |
| 2 | 0.002153 |
| 5 | 0.005382 |
| 10 | 0.010764 |
| 15 | 0.016146 |
| 20 | 0.021528 |
| 25 | 0.02691 |
| 50 | 0.05382 |
| 100 | 0.107639 |
| 250 | 0.269098 |
| 500 | 0.538195 |
| 1000 | 1.076391 |
Phot to Foot-Candle Conversion Table
| Phot (ph) | Foot-Candle (fc) |
|---|---|
| 0.5 | 464.515218 |
| 1 | 929.030436 |
| 2 | 1,858.060872 |
| 5 | 4,645.15218 |
| 10 | 9,290.30436 |
| 15 | 13,935.456539 |
| 20 | 18,580.608719 |
| 25 | 23,225.760899 |
| 50 | 46,451.521798 |
| 100 | 92,903.043597 |
| 250 | 232,257.608992 |
| 500 | 464,515.217983 |
| 1000 | 929,030.435966 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Foot-Candle (fc)
Illuminance
Derived from the lux (1 lx = 1 lm/m²); the foot-candle is 1 lm/ft².
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Phot (ph)
Illuminance
Derived from the lux (1 lx = 1 lm/m²); the foot-candle is 1 lm/ft².
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Foot-Candle to Phot
To convert from Foot-Candle (fc) to Phot (ph), multiply the value by 0.001076391.
Formula: ph = fc × 0.001076391
Reverse: fc = ph × 929.0304359661
Step-by-Step Example
- Start with your value in Foot-Candle. For example: 5 fc
- Multiply by the conversion factor: 5 x 0.001076391
- The result is: 0.005382 ph
Foot-Candle and Phot Relationship
This calculation facilitates standardized conversion between recognized units of illuminance. Since 1 Foot-Candle represents a fraction of a Phot (1 Phot ≈ 929.0304 Foot-Candles), the Phot is the larger measurement interval. Understanding the relationship between Foot-Candle and Phot is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Foot-Candle
The Foot-Candle (symbol: fc) is a recognized unit in the US Customary / Imperial measurement framework, utilized within illuminance applications for precision and standardized data representation.
Common uses of Foot-Candle: illuminance calculations, engineering and science, education.
About Phot
The Phot (symbol: ph) is a recognized unit in the Standard measurement framework, utilized within illuminance applications for precision and standardized data representation.
Common uses of Phot: illuminance calculations, engineering and science, education.
Frequently Asked Questions
- How many Phots are in 1 Foot-Candle?
- There are exactly 0.001076391 Phots in 1 Foot-Candle. This means the conversion factor from Foot-Candle to Phot is 0.001076391.
- What is the formula to convert Foot-Candle to Phot?
- The formula to convert Foot-Candle to Phot is: ph = fc × 0.001076391. For example, to convert 10 Foot-Candles to Phots, you would multiply 10 by 0.001076391.
- What is a Foot-Candle?
- The Foot-Candle (symbol: fc) is a recognized unit in the US Customary / Imperial measurement framework, utilized within illuminance applications for precision and standardized data representation.
- What is a Phot?
- The Phot (symbol: ph) is a recognized unit in the Standard measurement framework, utilized within illuminance applications for precision and standardized data representation.
- What are the common uses of Foot-Candle?
- The Foot-Candle is commonly used in illuminance calculations, engineering and science, education.
Related Illuminance Conversions
Cite this page
UnitConvertLab. (2026). Foot-Candle to Phot converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/foot_candle-to-phot