Convert Nits to Candelas per Square Inch (cd/m2 to cd/in2)
1 nit (cd/m²) = 0.00064516 candelas per square inch (cd/in²). 1 cd/in² = 1550.0031 cd/m². Example: 15 cd/m² = 15 × 0.00064516 = 0.0096774 cd/in².
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1 cd/m² = 0.00064516 cd/in²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk nit to candela per square inch converter to paste a column from Excel.
How to Convert Nit to Candela per Square Inch
- 1 cd/m² = 0.00064516 cd/in²
- 1 cd/in² = 1550.0031 cd/m²
- Example: convert 15 cd/m² to cd/in²: 15 cd/m² = 15 × 0.00064516 cd/in² = 0.0096774 cd/in²
Formula
cd/in² = cd/m² × 0.00064516
or cd/in² = cd/m² ÷ 1550.003100006
Derivation from SI units:
- 1 nit = 1 cd/m².
- 1 cd/in² = 1/0.00064516 cd/m² ≈ 1550 cd/m².
Both units are defined exactly, so the factor is exact. Nit definition: nit; Candela per Square Inch definition: candela per square inch.
Worked examples
- A reading of 500 cd/m² converts to 0.32258 cd/in².
500 cd/m² × 0.00064516 = 0.32258 cd/in² - A value of 1600 cd/m² is 1.032256 cd/in².
1600 cd/m² × 0.00064516 = 1.032256 cd/in²
Nit to Candela per Square Inch conversion table
| Nits (cd/m²) | Candelas per Square Inch (cd/in²) |
|---|---|
| 100 cd/m² | 0.064516 cd/in² |
| 250 cd/m² | 0.16129 cd/in² |
| 300 cd/m² | 0.193548 cd/in² |
| 500 cd/m² | 0.32258 cd/in² |
| 600 cd/m² | 0.387096 cd/in² |
| 1000 cd/m² | 0.64516 cd/in² |
| 1600 cd/m² | 1.032256 cd/in² |
| 2000 cd/m² | 1.29032 cd/in² |
| 4000 cd/m² | 2.58064 cd/in² |
| 10000 cd/m² | 6.4516 cd/in² |
Where it's used
Nits are used for display brightness (phones, monitors, TVs), while candelas per square inch appear in lamp and LED specifications. Both measure luminance (brightness of a surface or screen), so the conversion is a fixed factor.
Nit to other luminance units
| Conversion | 1 cd/m² equals |
|---|---|
| nit to candela per square inch | 0.00064516 cd/in² |
| nit to foot-lambert | 0.291863508 fL |
| nit to apostilb | 3.141592654 asb |
| nit to candela per square foot | 0.09290304 cd/ft² |
| nit to stilb | 0.0001 sb |
| nit to lambert | 0.0003141592654 L |
Frequently asked questions
How many candelas per square inch are in 1 nit?
1 cd/m² = 0.00064516 cd/in².
How do I convert nits to candelas per square inch?
Multiply the value in cd/m² by 0.00064516, or divide it by 1550.0031. For example, 15 cd/m² × 0.00064516 = 0.0096774 cd/in².
Is the cd/m² to cd/in² conversion exact?
Yes. Both units are defined exactly, and 1 cd/m² is exactly 0.00064516 cd/in².
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "candela per square inch".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Nits to Candelas per Square Inch (cd/m2 to cd/in2). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/nits-to-candelas-per-square-inch/
IEEE
Scientific Converters, "Convert Nits to Candelas per Square Inch (cd/m2 to cd/in2)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/nits-to-candelas-per-square-inch/