Foot-candle (Lumen/foot²) to Phot (Lumen/centimeter²) Converter
免费照度转换器, 即时换算勒克斯、英尺烛光、辐透和毫勒克斯
Foot-candle (Lumen/foot²)
- Symbol
- fc
- System
- Metric/Imperial
- Dimension
- Various
Phot (Lumen/centimeter²)
- Symbol
- ph
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Foot-candle (Lumen/foot²) | Phot (Lumen/centimeter²) | Phot (Lumen/centimeter²) | Foot-candle (Lumen/foot²) |
|---|---|---|---|
| 1 | 0.00107639 | 1 | 929.0312990645 |
| 2 | 0.00215278 | 2 | 1858.0625981289 |
| 3 | 0.00322917 | 3 | 2787.0938971934 |
| 5 | 0.00538195 | 5 | 4645.1564953223 |
| 10 | 0.0107639 | 10 | 9290.3129906447 |
| 25 | 0.02690975 | 25 | 23225.7824766116 |
| 50 | 0.0538195 | 50 | 46451.5649532233 |
| 100 | 0.107639 | 100 | 92903.1299064466 |
| 500 | 0.538195 | 500 | 464515.6495322328 |
| 1000 | 1.07639 | 1000 | 929031.2990644656 |
Conversion Formula
Phot (Lumen/centimeter²) = Foot-candle (Lumen/foot²) × 0.00107639
Foot-candle (Lumen/foot²) = Phot (Lumen/centimeter²) × 929.0312990645
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 0.00107639.
How to convert Foot-candle (Lumen/foot²) to Phot (Lumen/centimeter²)
Multiply the value in foot-candle (lumen/foot²) by 0.00107639 to get phot (lumen/centimeter²). For example, 5 Foot-candle (Lumen/foot²) = 0.00538195 Phot (Lumen/centimeter²). All results in the 照度 converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 0.00 too early — keep full precision until the final display. For 照度, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Phot (Lumen/centimeter²) in 1 Foot-candle (Lumen/foot²)?
- 1 Foot-candle (Lumen/foot²) = 0.00107639 Phot (Lumen/centimeter²).
- How many Foot-candle (Lumen/foot²) in 1 Phot (Lumen/centimeter²)?
- 1 Phot (Lumen/centimeter²) = 929.0312990645 Foot-candle (Lumen/foot²).
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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