Convert Nanolux to Kilolux

Convert Nanolux (nlx) to Kilolux (klx) instantly and accurately.

Nanolux (nlx)
Kilolux (klx)

Conversion Formula

klx = nlx × 1.000000000e-12

About Nanolux

The nanolux (nlx) equals 10⁻⁹ lx. Astronomical night-sky scale: the zodiacal band contributes ~10-50 nlx; airglow ~150 nlx; the Milky Way core ~100 nlx. The absolute human eye threshold is around 100 nlx. Used in night-sky quality metrics and photomultiplier tube calibration. 1 nlx = 10⁻⁹ lx.

About Kilolux

The kilolux (klx) equals 1 000 lx. Outdoor daytime scale: overcast sky ~10-20 klx; direct mid-latitude sunshine at noon ~80-100 klx. Required for fine inspection work, surgery, and color-critical print evaluation (ISO 3664: 2 klx). Also the range for plant-growth LED systems at canopy level. 1 klx = 10³ lx.

Quick Reference Table

Nanolux (nlx)Kilolux (klx)
1 nlx1 × 10-12 klx
2 nlx2 × 10-12 klx
5 nlx5 × 10-12 klx
10 nlx1 × 10-11 klx
25 nlx2.5 × 10-11 klx
50 nlx5 × 10-11 klx
100 nlx1 × 10-10 klx

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