| Formula | Calculator | Reverse units |
|---|---|---|
| 1 phot second = 929.0313 footcandle second | Factors for footcandle second | |
| 1 phot second = 10 kilolux second | Factors for kilolux second | |
| 1 phot second = 1 lumen second/square centimeter | Factors for lumen second/square centimeter | |
| 1 phot second = 929.0313 lumen second/square foot | Factors for lumen second/square foot | |
| 1 phot second = 6.451613 lumen second/square inch | Factors for lumen second/square inch | |
| 1 phot second = 10000 lumen second/square meter | Factors for lumen second/square meter | |
| 1 phot second = 2.777778 lux hour | Factors for lux hour | |
| 1 phot second = 10000 lux second | Factors for lux second | |
| 1 phot second = 10000 metercandle second | Factors for metercandle second | |
| 1 phot second = 1000 milliphot second | Factors for milliphot second | |
| 1 phot second = 1.0e+7 nox second | Factors for nox second |