| Formula | Calculator | Reverse units |
|---|---|---|
| 1 apostilb - international = 1 blondel | Factors for blondel | |
| 1 apostilb - international = 10 bril | Factors for bril | |
| 1 apostilb - international = 3.1831e-5 candela/square centimeter | Factors for candela/square centimeter | |
| 1 apostilb - international = 0.029572 candela/square foot | Factors for candela/square foot | |
| 1 apostilb - international = 0.0002053613 candela/square inch | Factors for candela/square inch | |
| 1 apostilb - international = 0.31831 candela/square meter | Factors for candela/square meter | |
| 1 apostilb - international = 0.09290305 footlambert | Factors for footlambert | |
| 1 apostilb - international = 0.00031831 kilocandela/square meter | Factors for kilocandela/square meter | |
| 1 apostilb - international = 0.0001 lambert | Factors for lambert | |
| 1 apostilb - international = 0.31831 lumen/steradian square meter | Factors for lumen/steradian square meter | |
| 1 apostilb - international = 0.31831 lux steradian | Factors for lux steradian | |
| 1 apostilb - international = 0.1 millilambert | Factors for millilambert | |
| 1 apostilb - international = 0.31831 nit | Factors for nit | |
| 1 apostilb - international = 1000 skot | Factors for skot | |
| 1 apostilb - international = 3.1831e-5 stilb | Factors for stilb |