Illumination / klx → lx
Convert Kilolux to Lux
Convert illuminance on a surface between lux and foot-candles. Convert Kilolux (klx) to Lux (lx). Find the formula, worked examples, unit definitions, and practical guidance below.
How to convert kilolux to lux
Illuminance is luminous flux per area, not radiant watts per area. One lux is one lumen per square meter. Photometric weighting prevents a universal lux-to-watts conversion.
Use x for the value in klx, b for the intermediate value in lx, and y for the result in lx.
lx = klx × 1000
Worked examples
10 klx ≈ 10000 lx
Step 1: (10 × 1000) ≈ 10000 lx.
Step 2: 10000 ÷ 1 ≈ 10000 lx.20 klx ≈ 20000 lx
Step 1: (20 × 1000) ≈ 20000 lx.
Step 2: 20000 ÷ 1 ≈ 20000 lx.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Kilolux
Kilolux (klx) measures illumination under the conventions above. The base value in lx is (x × 1000), where x is the numerical value in klx. Factors shown here are rounded for display; calculations use the stored factor.
About Lux
Lux (lx) measures illumination under the conventions above. The base value in lx is (x × 1), where x is the numerical value in lx. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Kilolux to lux reference table
| Kilolux (klx) | Lux (lx) |
|---|---|
| 1 | 1000 |
| 5 | 5000 |
| 10 | 10000 |
| 25 | 25000 |
| 50 | 50000 |
| 100 | 100000 |
| 1000 | 1000000 |
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