Foot-Lamberts to Kilocandela per Square Meter
Snapshot
1 Foot-Lamberts equals 0.003426 Kilocandela per Square Meter. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.
- Reference basis: This conversion uses fixed luminance constants anchored to candela per square meter.
- Example: For 5 Foot-Lamberts, the result equals 0.017131 Kilocandela per Square Meter.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Interactive conversion
Converter Calculator
0.003426 Kilocandela per Square Meter (kcd/m2)
SwitchMachine access
Available to apps and AI agents
Foot-Lamberts to Kilocandela per Square Meter can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The identifiers below select the same calculation as the calculator.
Machine-readable identifiers
- Conversion family
photometry-imaging- Source unit
foot_lamberts- Target unit
kilocandela_per_square_meter
The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.
Example API request and response
POST /api/v1/convertRequest
{
"family": "photometry-imaging",
"value": 1,
"from": "foot_lamberts",
"to": "kilocandela_per_square_meter"
}Essential response
{
"ok": true,
"conversion": {
"family": "photometry-imaging",
"value": 1,
"from": "foot_lamberts",
"to": "kilocandela_per_square_meter",
"result": {
"raw": 0.0034262590996,
"display": "0.003426"
},
"canonicalPath": "/photometry-imaging/foot-lamberts-to-kilocandela-per-square-meter/"
}
}Explanation
This page converts Foot-Lamberts into Kilocandela per Square Meter using fixed luminance constants anchored to candela per square meter. The direct answer, calculator, and common values table all follow the same factor.
Formula: Kilocandela per Square Meter = Foot-Lamberts × 0.003426. Why: legacy luminance units such as foot-lamberts, lamberts, apostilbs, and stilbs each use fixed cd/m² equivalents, so the calculator normalizes through candela per square meter before applying the target unit.
Foot-Lamberts (fL): a legacy luminance unit often used in projection and cinema display contexts.
Kilocandela per Square Meter (kcd/m2): a luminance unit equal to 1,000 cd/m², used for very bright sources and high-luminance references.
This route is useful when comparing modern display-brightness values with legacy luminance units used in projection, cinema, and older photometric references.
Because the route stays inside one cd/m2-based luminance model, the mirror page reverses the same constants without changing the underlying assumptions.
Common Conversion Values
| Foot-Lamberts (fL) | Kilocandela per Square Meter (kcd/m2) |
|---|---|
| 1 | 0.003426 |
| 5 | 0.017131 |
| 10 | 0.034263 |
| 25 | 0.085656 |
| 50 | 0.171313 |
| 100 | 0.342626 |
| 250 | 0.856565 |
| 500 | 1.71313 |
| 1,000 | 3.426259 |
Questions & answers
Frequently Asked Questions
How many kilocandela per square meter are in 1 foot-lamberts?
1 Foot-Lamberts equals 0.003426 Kilocandela per Square Meter on this page.
Why is Foot-Lamberts to Kilocandela per Square Meter useful in display and projection work?
This route is useful when comparing modern display-brightness values with legacy luminance units used in cinema, projection, calibration, and older imaging references.
When would I convert foot-lamberts to kilocandela per square meter?
This route is useful when comparing modern display-brightness values with legacy luminance units used in projection, cinema, and older photometric references.
How do I reverse Foot-Lamberts to Kilocandela per Square Meter?
Use the mirror Kilocandela per Square Meter to Foot-Lamberts route; it applies the inverse relationship with the same cd/m²-based luminance assumptions.