Lumens per Steradian to Candelas Converter
Enter the luminous intensity in lumens per steradian below to convert it to candelas.
Convert Lumens per Steradian to Candelas
Enter a value in lumens per steradian (lm/sr) to convert to candelas (cd).
Lumen per Steradian to Candela Conversion Table
Table showing various lumen per steradian measurements converted to candelas. Click any preset value or arrow to load it into the converter.
How to Convert Lumens per Steradian to Candelas
To convert lumens per steradian to candelas, multiply the luminous intensity by the following conversion ratio: 1 candelas/lumen per steradian.
Since one lumen per steradian is equal to 1 candelas, you can use this simple formula to convert:
The luminous intensity in candelas is equal to the luminous intensity in lumens per steradian multiplied by 1.
For example, here's how to convert 10 lumens per steradian to candelas using the formula above.
How Many Candelas Are in a Lumen per Steradian?
There are 1 candelas in a lumen per steradian, which is why we use this value in the formula above.
Our lumen per steradian to candela calculator automatically converts your luminous intensity measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Lumens per Steradian and candelas are both units used to measure luminous intensity. Keep reading to learn more about each unit.
What Is a Lumen per Steradian?
A lumen per steradian is a unit of luminous intensity equal to 1 candelas (cd), the base unit for luminous intensity. Exact SI definition of 1 candela (1 lm/sr = 1 cd). [1]
The lumen per steradian is classified as an International System of Units (SI) unit of luminous intensity. Lumens per Steradian can be abbreviated as lm/sr; for example, 1 lumen per steradian can be written as 1 lm/sr.
When working with lumens per steradian (lm/sr) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, lumens per steradian (lm/sr) are widely used across standard luminous intensity applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Candela?
Fundamental SI base unit of luminous intensity. It serves as a primary reference unit for measuring luminous intensity across scientific and practical applications. [2]
The candela is classified as an International System of Units (SI) unit of luminous intensity. Candelas can be abbreviated as cd; for example, 1 candela can be written as 1 cd.
As the primary coherent reference unit for luminous intensity in this category, all other luminous intensity units are mathematically anchored to the candela (cd).
In practice, candelas (cd) are widely used across standard luminous intensity applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting luminous intensity between lumens per steradian (lm/sr) and candelas (cd), keep full floating-point precision (1 lm/sr = 1 cd; 1 cd = 1 lm/sr) during intermediate calculations and round only the final candela figure to match your instrument tolerance.
More Lumen per Steradian & Candela Conversions
Need to calculate in the opposite direction? Use our candelas to lumens per steradian converter (cd to lm/sr) to switch your starting unit immediately. You can also explore related tools such as converting millicandelas to candelas, converting kilocandelas to candelas, or converting candelas to millicandelas.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Luminous Intensity Metrology Standard — Lumens per Steradian (lm/sr) to Candelas (cd)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Lumen per Steradian (lm/sr) & Candela (cd)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (lm/sr to cd)