Convert Lumens to Kilolumens
Convert Lumens (lm) to Kilolumens (klm) instantly and accurately.
Conversion Formula
klm = lm × 0.001
About Lumens
The lumen (lm) is the SI derived unit of luminous flux, equal to 1 cd·sr. A standard wax candle emits approximately 12 lm total; a 40 W incandescent bulb about 450 lm; the common 800 lm LED lamp is the direct replacement for a 60 W incandescent. Defined since 2019 SI by fixing K_cd = 683 lm/W at 540 THz. 1 lm = 1 cd·sr.
About Kilolumens
The kilolumen (klm) equals 1 000 lm. High-efficiency LED light fittings: a modern 100 W-equivalent LED lamp emits 1.4-1.6 klm; a 100 W halogen PAR38 spot approximately 1.1 klm; short-throw projectors are rated at 1-5 klm (ANSI lumens). The standard unit for commercial LED fixture specifications and projector brightness. 1 klm = 10³ lm.
Quick Reference Table
| Lumens (lm) | Kilolumens (klm) |
|---|---|
| 1 lm | 0.001 klm |
| 2 lm | 0.002 klm |
| 5 lm | 0.005 klm |
| 10 lm | 0.01 klm |
| 25 lm | 0.025 klm |
| 50 lm | 0.05 klm |
| 100 lm | 0.1 klm |