Convert Candela per Square Millimeter to Candela per Square Inch
Convert candelas per square millimeter to candelas per square inch by entering a value below.
How to Convert Candelas per Square Millimeter to Candelas per Square Inch
The candela per square millimeter and candela per square inch are both units of luminance. 1 candela per square millimeter equals 645.16 candelas per square inch. This means to convert candelas per square millimeter to candelas per square inch, you multiply by 645.16.
Formula
Step-by-Step Example
Convert 5 cd/mm² to candelas per square inch:
We need to convert candelas per square millimeter to candelas per square inch
Since 1 cd/mm² = 645.16 cd/in², multiply by 645.16
5 × 645.16 = 3225.8
5 cd/mm² = 3225.8 cd/in²
Candela per Square Millimeter to Candela per Square Inch Conversion Table
Quick reference table for common candela per square millimeter to candela per square inch conversions. Click any value for detailed calculation.
| Candelas per Square Millimeter (cd/mm²) | Candelas per Square Inch (cd/in²) |
|---|---|
| 0.1 cd/mm² | 64.516 cd/in² |
| 0.5 cd/mm² | 322.58 cd/in² |
| 1 cd/mm² | 645.16 cd/in² |
| 2 cd/mm² | 1290.32 cd/in² |
| 5 cd/mm² | 3225.8 cd/in² |
| 10 cd/mm² | 6451.6 cd/in² |
| 25 cd/mm² | 16129 cd/in² |
| 50 cd/mm² | 32258 cd/in² |
| 100 cd/mm² | 64516 cd/in² |
About These Units
Candela per Square Millimeter (cd/mm²)
A candela per square millimeter (cd/mm²) equals 1,000,000 nits. Measures extremely intense sources: laser output facets, concentrated LED dies, and arc lamp electrodes. A high-power LED die can exceed 100 cd/mm². Used in optical engineering calculations.
Candela per Square Inch (cd/in²)
Candelas per square inch (cd/in²) equals 1,550 nits. Used for specifying small, bright light sources in imperial units. One cd/in² ≈ 452 foot-lamberts. Rarely used; metric units preferred for technical specifications.
Frequently Asked Questions
How do I convert candelas per square millimeter to candelas per square inch?
To convert candelas per square millimeter to candelas per square inch, multiply the value by 645.16. For example, 10 cd/mm² = 6451.6 cd/in².
How many candelas per square inch are in 1 candela per square millimeter?
1 candela per square millimeter equals 645.16 candelas per square inch.
What is the formula for candelas per square millimeter to candelas per square inch?
The formula is: cd/in² = cd/mm² × 645.16.