Lumens per Steradian to Millicandelas Converter
Enter the luminous intensity in lumens per steradian below to convert it to millicandelas.
Convert Lumens per Steradian to Millicandelas
Enter a value in lumens per steradian (lm/sr) to convert to millicandelas (mcd).
Lumen per Steradian to Millicandela Conversion Table
Table showing various lumen per steradian measurements converted to millicandelas. Click any preset value or arrow to load it into the converter.
| Lumens per Steradian (lm/sr) | Millicandelas (mcd) |
|---|---|
| 1 lm/sr | 1,000 mcd |
| 2 lm/sr | 2,000 mcd |
| 2.5 lm/sr | 2,500 mcd |
| 5 lm/sr | 5,000 mcd |
| 10 lm/sr | 10,000 mcd |
| 15 lm/sr | 15,000 mcd |
| 20 lm/sr | 20,000 mcd |
| 25 lm/sr | 25,000 mcd |
| 30 lm/sr | 30,000 mcd |
| 50 lm/sr | 50,000 mcd |
How to Convert Lumens per Steradian to Millicandelas
To convert lumens per steradian to millicandelas, multiply the luminous intensity by the following conversion ratio: 1,000 millicandelas/lumen per steradian.
Since one lumen per steradian is equal to 1,000 millicandelas, you can use this simple formula to convert:
The luminous intensity in millicandelas is equal to the luminous intensity in lumens per steradian multiplied by 1,000.
For example, here's how to convert 5 lumens per steradian to millicandelas using the formula above.
How Many Millicandelas Are in a Lumen per Steradian?
There are 1,000 millicandelas in a lumen per steradian, which is why we use this value in the formula above.
Our lumen per steradian to millicandela 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 millicandelas 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 Millicandela?
A millicandela is a unit of luminous intensity equal to 1/1,000 of a candela (0.001 cd). Indicator LED brightness unit (0.001 cd). [2]
The millicandela is classified as a metric and SI-compatible unit of luminous intensity. Millicandelas can be abbreviated as mcd; for example, 1 millicandela can be written as 1 mcd.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millicandela (mcd) a convenient decimal multiple of the candela (cd).
In practice, millicandelas (mcd) are widely used across fine-tolerance laboratory, analytical, and micro-scale luminous intensity measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting luminous intensity between lumens per steradian (lm/sr) and millicandelas (mcd), keep full floating-point precision (1 lm/sr = 1,000 mcd; 1 mcd = 0.001 lm/sr) during intermediate calculations and round only the final millicandela figure to match your instrument tolerance.
More Lumen per Steradian & Millicandela Conversions
Need to calculate in the opposite direction? Use our millicandelas to lumens per steradian calculator to switch your starting unit immediately. You can also explore related tools such as converting millicandelas to lumens per steradian, converting candelas to millicandelas, or converting lumens per steradian to candelas.
Convert from Lumens per Steradian
Convert to Millicandelas
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Luminous Intensity Metrology Standard — Lumens per Steradian (lm/sr) to Millicandelas (mcd)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Lumen per Steradian (lm/sr) & Millicandela (mcd)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (lm/sr to mcd)