Foot-lamberts to Candelas per Sq. Meter Converter
Enter the luminance in foot-lamberts below to convert it to candelas per sq. meter.
Convert Foot-lamberts to Candelas per Sq. Meter (Nits)
Enter a value in foot-lamberts (fL) to convert to candelas per sq. meter (nits) (cd/m²).
Foot-lambert to Candela per Square Meter Conversion Table
Table showing various foot-lambert measurements converted to candelas per sq. meter. Click any preset value or arrow to load it into the converter.
| Foot-lamberts (fL) | Candelas per Sq. Meter (Nits) (cd/m²) |
|---|---|
| 1 fL | 3.4262591 cd/m² |
| 2 fL | 6.8525182 cd/m² |
| 2.5 fL | 8.5656478 cd/m² |
| 5 fL | 17.1312955 cd/m² |
| 10 fL | 34.262591 cd/m² |
| 15 fL | 51.3938865 cd/m² |
| 20 fL | 68.525182 cd/m² |
| 25 fL | 85.6564775 cd/m² |
| 30 fL | 102.787773 cd/m² |
| 50 fL | 171.312955 cd/m² |
How to Convert Foot-lamberts to Candelas per Sq. Meter
To convert foot-lamberts to candelas per sq. meter, multiply the luminance by the following conversion ratio: 3.4262591 candelas per sq. meter/foot-lambert.
Since one foot-lambert is equal to 3.4262591 candelas per sq. meter, you can use this simple formula to convert:
The luminance in candelas per sq. meter is equal to the luminance in foot-lamberts multiplied by 3.4262591.
For example, here's how to convert 5 foot-lamberts to candelas per sq. meter using the formula above.
How Many Candelas per Sq. Meter Are in a Foot-lambert?
There are 3.4262591 candelas per sq. meter in a foot-lambert, which is why we use this value in the formula above.
Our foot-lambert to candela per square meter calculator automatically converts your luminance measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Foot-lamberts and candelas per sq. meter are both units used to measure luminance. Keep reading to learn more about each unit.
What Is a Foot-lambert?
A foot-lambert is a unit of luminance equal to 3.4262591 candelas per sq. meter (cd/m²), the base unit for luminance. Cinema projection luminance unit (1/π cd/ft² ≈ 3.426 cd/m²). [1]
The foot-lambert is classified as a US customary unit of luminance. Foot-lamberts can be abbreviated as fL; for example, 1 foot-lambert can be written as 1 fL.
When working with foot-lamberts (fL) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, foot-lamberts (fL) are widely used across standard luminance applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Candela per Square Meter?
SI display brightness and luminance unit (1 nit = 1 cd/m²). It serves as a primary reference unit for measuring luminance across scientific and practical applications. [2]
The candela per square meter is classified as an International System of Units (SI) unit of luminance. Candelas per Sq. Meter can be abbreviated as cd/m²; for example, 1 candela per square meter can be written as 1 cd/m².
As the primary coherent reference unit for luminance in this category, all other luminance units are mathematically anchored to the candela per square meter (cd/m²).
In practice, candelas per sq. meter (cd/m²) are widely used across standard luminance applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting luminance between foot-lamberts (fL) and candelas per sq. meter (cd/m²), keep full floating-point precision (1 fL = 3.4262591 cd/m²; 1 cd/m² = 0.2918635 fL) during intermediate calculations and round only the final candela per square meter figure to match your instrument tolerance.
More Foot-lambert & Candela per Square Meter Conversions
Need to calculate in the opposite direction? Use our candelas per sq. meter (nits) to foot-lamberts calculator to switch your starting unit immediately. You can also explore related tools such as converting candelas per sq. meter (nits) to foot-lamberts, converting kilocandelas per square meter to candelas per sq. meter (nits), or converting stilbs to candelas per sq. meter (nits).
Convert from Foot-lamberts
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Luminance Metrology Standard — Foot-lamberts (fL) to Candelas per Sq. Meter (Nits) (cd/m²)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Foot-lambert (fL) & Candela per Square Meter (Nit) (cd/m²)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (fL to cd/m²)