Candela per square foot to Footlamberts
Convert candela per square foot to footlamberts (cd/ft² to fL). 1 cd/ft² = 3.14159265359 fL. Use the calculator, formula and conversion table.
How to convert candela per square foot to footlamberts
Multiply the amount in candela per square foot by 3.14159265359 to get footlamberts. The displayed factor and results are rounded to 12 significant digits.
fL = cd/ft² × 3.14159265359Worked example
1 cd/ft² = 3.14159265359 fL. Change the amount in the calculator above to use your own value.
Units and assumptions
Uses candela per square metre, also called a nit. One footlambert is 1/π candela per square foot; one lambert is 10,000/π cd/m². This describes luminance in a viewing direction and does not convert display brightness into lux without geometry. Values are rounded to 12 significant figures for display.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Candela per square foot to Footlamberts table
| Candela per square foot (cd/ft²) | Footlamberts (fL) |
|---|---|
| 0 | 0 |
| 1 | 3.14159265359 |
| 5 | 15.7079632679 |
| 10 | 31.4159265359 |
| 25 | 78.5398163397 |
| 100 | 314.159265359 |
| 1,000 | 3,141.59265359 |
About this conversion
What is the formula for candela per square foot to footlamberts?
fL = cd/ft² × 3.14159265359. Multiply the amount in candela per square foot by 3.14159265359 to get footlamberts. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to candela per square foot?
Use the footlamberts to candela per square foot calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the luminance converter to browse all supported pairs.