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Candela per square foot (cd/ft²)

One candela per square foot: 1 ÷ 0.09290304 cd/m².

What is a candela per square foot?

Symbol
cd/ft²
Quantity
Luminance
Unit system
US customary
Definition
One candela per square foot: 1 ÷ 0.09290304 cd/m².
Exact
Yes, the value is exact by definition
Source
NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used occasionally in US lighting and display specifications that work in feet rather than meters.

Candela per square foot in other luminance units

Candela per square foot quick reference

Candela per square foot in other units
Candela per square footCandela per square meter (nit)Foot-lambertKilocandela per square meter
1 cd/ft²≈ 10.76391042 cd/m²≈ 3.141592654 fL≈ 0.01076391042 kcd/m²
10 cd/ft²≈ 107.6391042 cd/m²≈ 31.41592654 fL≈ 0.1076391042 kcd/m²
100 cd/ft²≈ 1076.391042 cd/m²≈ 314.1592654 fL≈ 1.076391042 kcd/m²
1000 cd/ft²≈ 10763.91042 cd/m²≈ 3141.592654 fL≈ 10.76391042 kcd/m²

Where the candela per square foot fits

The next smaller luminance unit is the foot-lambert (fL). 1 cd/ft² ≈ 3.141592654 fL, and 1 fL ≈ 0.3183098862 cd/ft².

The next larger luminance unit is the kilocandela per square meter (kcd/m²). 1 cd/ft² ≈ 0.01076391042 kcd/m², and 1 kcd/m² = 92.90304 cd/ft².

Frequently asked questions

How many candelas per square meter are in one candela per square foot?
One candela per square foot ≈ 10.76391042 cd/m² (candelas per square meter).
How many foot-lamberts are in one candela per square foot?
One candela per square foot ≈ 3.141592654 fL (foot-lamberts).
How many kilocandelas per square meter are in one candela per square foot?
One candela per square foot ≈ 0.01076391042 kcd/m² (kilocandelas per square meter).