Convert Nanolux to Lumens per square inch

Convert Nanolux (nlx) to Lumens per square inch (lm/in²) instantly and accurately.

Nanolux (nlx)
Lumens per square inch (lm/in²)

Conversion Formula

lm/in² = nlx × 6.451600000e-13

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 Lumens per square inch

The lumen per square inch (lm/in²) equals 1/0.00064516 lx ≈ 1 550 lx. Used in US optics and LED backlight datasheets when specifying output over small aperture areas. Rare in general lighting but found in US optical engineering catalogs and LCD backlight specifications. 1 lm/in² = 1/0.00064516 lx.

Quick Reference Table

Nanolux (nlx)Lumens per square inch (lm/in²)
1 nlx6.452 × 10-13 lm/in²
2 nlx1.29 × 10-12 lm/in²
5 nlx3.226 × 10-12 lm/in²
10 nlx6.452 × 10-12 lm/in²
25 nlx1.613 × 10-11 lm/in²
50 nlx3.226 × 10-11 lm/in²
100 nlx6.452 × 10-11 lm/in²

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