Lumens to Millicandela Calculator
Convert luminous flux (lumens) and apex angle to luminous intensity (millicandela).
Input Data
Input Luminous flux Φ.
lm
Input Apex angle θ.
°
Results
467.0838mcd
I = (Φ / Ω) × 1000 = (0.1 lm / 0.214094 sr) × 1000 = 467.0838 mcd
At a glance:Lumens to Millicandela Calculator: enter parameters to compute results; complements related calculators.
Formula
I(mcd) = (Φ / Ω) × 1000
Ω = 2π(1 − cos(θ/2)), 1 cd = 1000 mcd
How to Use
- Enter luminous flux Φ (lumens).
- Enter apex angle θ (full angle, degrees).
- Get luminous intensity I (millicandela).
Case Studies
6.283 lm, apex 180°
Ω = 6.283 sr, I = 1 cd = 1000 mcd.
FAQ
Use of millicandela?
LED indicators and small lamps are often rated in mcd.
Vs candela?
1 cd = 1000 mcd.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.