Convert phots to foot-candles
1 ph = 929.0304 fc — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
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Show this value in all 8 illuminance units
- Kilolux klx 10
- Lux lx 10 000
- Millilux mlx 10 000 000
- Foot-candles fc 929.0304
- Phots ph 1
- Noxs nx 10 000 000
- Lumen per square meters lm/m² 10 000
- Lumen per square centimeters lm/cm² 1
Every row is Phot (ph) converted through the lux, in exact rational arithmetic.
How to convert phots to foot-candles
Multiply the number of phots by 929.0304 to get foot-candles.
The exact factor is 929.0304 — as a fraction, 580644/625.
Foot-candle: Lighting design in the US. One foot-candle is 10.763 91… lux — an exact fraction.
Phot to Foot-candle conversion table
| Phots (ph) | Foot-candles (fc) |
|---|---|
| 1 ph | 929.0304 |
| 2 ph | 1858.0608 |
| 3 ph | 2787.0912 |
| 5 ph | 4645.152 |
| 10 ph | 9290.304 |
| 20 ph | 18 580.608 |
| 25 ph | 23 225.76 |
| 50 ph | 46 451.52 |
| 100 ph | 92 903.04 |
| 250 ph | 232 257.6 |
| 500 ph | 464 515.2 |
| 1000 ph | 929 030.4 |
Foot-candle to Phot conversion table
| Foot-candles (fc) | Phots (ph) |
|---|---|
| 1 fc | 0.001 076 391 |
| 2 fc | 0.002 152 782 1 |
| 3 fc | 0.003 229 173 1 |
| 5 fc | 0.005 381 955 2 |
| 10 fc | 0.010 763 91 |
| 20 fc | 0.021 527 821 |
| 25 fc | 0.026 909 776 |
| 50 fc | 0.053 819 552 |
| 100 fc | 0.107 639 1 |
| 250 fc | 0.269 097 76 |
| 500 fc | 0.538 195 52 |
| 1000 fc | 1.076 391 |
Frequently asked
How many foot-candles are in a phot?
One phot equals 929.0304 foot-candles (ph → fc). That figure is exact, not rounded.
How do you convert phots to foot-candles?
Multiply the number of phots by 929.0304 to get foot-candles.
What is 1 fc in phots?
One foot-candle is 0.001076391042 phots.
What is 10 ph in fc?
10 ph = 9290.304 fc.
What exactly is a foot-candle?
Lighting design in the US. One foot-candle is 10.763 91… lux — an exact fraction.