| Formula | Calculator | Reverse units |
|---|---|---|
| 1 lumen second = 1 candela second steradian | Factors for candela second steradian | |
| 1 lumen second = 0.001464129 joule (quantity of light) | Factors for joule (quantity of light) | |
| 1 lumen second = 0.0002777778 lumen hour | Factors for lumen hour | |
| 1 lumen second = 1 lux second square meter | Factors for lux second square meter | |
| 1 lumen second = 1 talbot | Factors for talbot | |
| 1 lumen second = 0.001459854 wattsecond (green light , 100% efficiency) | Factors for wattsecond (green light , 100% efficiency) | |
| 1 lumen second = 0.001464129 wattsecond (light at 540 THz) | Factors for wattsecond (light at 540 THz) | |
| 1 lumen second = 0.001470588 wattsecond (light at 5550 angstrom) | Factors for wattsecond (light at 5550 angstrom) |