Photometry & ImagingKilocandela per Square Meter to Lamberts

Kilocandela per Square Meter to Lamberts

Methodology·How We Verify

Snapshot

1 Kilocandela per Square Meter equals 0.314159 Lamberts.

Reference basis: This conversion uses fixed luminance constants anchored to candela per square meter.
Example: For 5 Kilocandela per Square Meter, the result equals 1.570796 Lamberts.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

0.314159 Lamberts (L)

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API and AI agent access

Kilocandela per Square Meter to Lamberts.

Machine-readable identifiers

Conversion family: photometry-imaging
Source unit: kilocandela_per_square_meter
Target unit: lamberts

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "photometry-imaging",
  "value": 1,
  "from": "kilocandela_per_square_meter",
  "to": "lamberts"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "photometry-imaging",
    "value": 1,
    "from": "kilocandela_per_square_meter",
    "to": "lamberts",
    "result": {
      "raw": 0.314159265359,
      "display": "0.314159"
    },
    "canonicalPath": "/photometry-imaging/kilocandela-per-square-meter-to-lamberts/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

The converter converts kilocandela per square meter into lamberts by normalizing both luminance units through candela per square meter. Formula: L = kcd/m2 × 0.314159265359. That keeps the snapshot, calculator, common values, and mirror page aligned on one luminance basis.

This is useful for display brightness checks, projection calibration, and imaging workflows where legacy photometric units and modern cd/m²-based measurements need to match cleanly.

Method & Luminance Basis

Method basis: both units reduce through candela per square meter, then apply the fixed target-unit luminance relationship.
Applied factor: 1 Kilocandela per Square Meter = 0.314159 Lamberts.
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Kilocandela per Square Meter (kcd/m2)	Lamberts (L)
1	0.314159
5	1.570796
10	3.141593
25	7.853982
50	15.707963
100	31.415927
250	78.539816
500	157.079633
1000	314.159265

Questions & answers

Frequently Asked Questions

Why is Kilocandela per Square Meter to Lamberts 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 kilocandela per square meter to lamberts?

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 Kilocandela per Square Meter to Lamberts?

Use the mirror Lamberts to Kilocandela per Square Meter route; it applies the inverse relationship with the same cd/m²-based luminance assumptions.