How to convert from lumen/square foot [lm/ft^2] to phot [ph]?

Learn how to convert from other 11 illumination units to lumen/square foot [lm/ft^2]

1. How to convert from lux [lx] To lumen/square foot [lm/ft^2]?
2. How to convert from lumen/square foot [lm/ft^2] To lux [lx]?
3. How to convert from meter-candle [m*c] To lumen/square foot [lm/ft^2]?
4. How to convert from lumen/square foot [lm/ft^2] To meter-candle [m*c]?
5. How to convert from centimeter-candle [cm*c] To lumen/square foot [lm/ft^2]?
6. How to convert from lumen/square foot [lm/ft^2] To centimeter-candle [cm*c]?
7. How to convert from foot-candle [ft*c, fc] To lumen/square foot [lm/ft^2]?
8. How to convert from lumen/square foot [lm/ft^2] To foot-candle [ft*c, fc]?
9. How to convert from flame To lumen/square foot [lm/ft^2]?
10. How to convert from lumen/square foot [lm/ft^2] To flame?
11. How to convert from phot [ph] To lumen/square foot [lm/ft^2]?
12. How to convert from lumen/square foot [lm/ft^2] To phot [ph]?
13. How to convert from nox To lumen/square foot [lm/ft^2]?
14. How to convert from lumen/square foot [lm/ft^2] To nox?
15. How to convert from candela steradian/sq. meter To lumen/square foot [lm/ft^2]?
16. How to convert from lumen/square foot [lm/ft^2] To candela steradian/sq. meter?
17. How to convert from lumen/square meter [lm/m^2] To lumen/square foot [lm/ft^2]?
18. How to convert from lumen/square foot [lm/ft^2] To lumen/square meter [lm/m^2]?
19. How to convert from lumen/square centimeter To lumen/square foot [lm/ft^2]?
20. How to convert from lumen/square foot [lm/ft^2] To lumen/square centimeter?
21. How to convert from watt/sq. cm (at 555 nm) To lumen/square foot [lm/ft^2]?
22. How to convert from lumen/square foot [lm/ft^2] To watt/sq. cm (at 555 nm)?