| Formula | Calculator | Reverse units |
|---|---|---|
| 1 watt (at 5550 angstrom) = 680 candela steradian | Show conversions from candela steradian | |
| 1 watt (at 5550 angstrom) = 680 lumen | Show conversions from lumen | |
| 1 watt (at 5550 angstrom) = 680 lux square meter | Show conversions from lux square meter |