Phot (Lumen/centimeter²) to Foot-candle (Lumen/foot²) Converter
無料照度換算ツール, ルクス、フットキャンドル、フォト、ミリルクスを瞬時に換算
Phot (Lumen/centimeter²)
- Symbol
- ph
- System
- Metric/Imperial
- Dimension
- Various
Foot-candle (Lumen/foot²)
- Symbol
- fc
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Phot (Lumen/centimeter²) | Foot-candle (Lumen/foot²) | Foot-candle (Lumen/foot²) | Phot (Lumen/centimeter²) |
|---|---|---|---|
| 1 | 929.0312990645 | 1 | 0.00107639 |
| 2 | 1858.0625981289 | 2 | 0.00215278 |
| 3 | 2787.0938971934 | 3 | 0.00322917 |
| 5 | 4645.1564953223 | 5 | 0.00538195 |
| 10 | 9290.3129906447 | 10 | 0.0107639 |
| 25 | 23225.7824766116 | 25 | 0.02690975 |
| 50 | 46451.5649532233 | 50 | 0.0538195 |
| 100 | 92903.1299064466 | 100 | 0.107639 |
| 500 | 464515.6495322328 | 500 | 0.538195 |
| 1000 | 929031.2990644656 | 1000 | 1.07639 |
Conversion Formula
Foot-candle (Lumen/foot²) = Phot (Lumen/centimeter²) × 929.0312990645
Phot (Lumen/centimeter²) = Foot-candle (Lumen/foot²) × 0.00107639
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 929.0312990645.
How to convert Phot (Lumen/centimeter²) to Foot-candle (Lumen/foot²)
Multiply the value in phot (lumen/centimeter²) by 929.0312990645 to get foot-candle (lumen/foot²). For example, 5 Phot (Lumen/centimeter²) = 4645.1564953223 Foot-candle (Lumen/foot²). 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 929. 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 Foot-candle (Lumen/foot²) in 1 Phot (Lumen/centimeter²)?
- 1 Phot (Lumen/centimeter²) = 929.0312990645 Foot-candle (Lumen/foot²).
- How many Phot (Lumen/centimeter²) in 1 Foot-candle (Lumen/foot²)?
- 1 Foot-candle (Lumen/foot²) = 0.00107639 Phot (Lumen/centimeter²).
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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