照明是每单位区域表面上的总发光通量。它以Lux（LX）为单位。
1 cd/m² = 0 sb
1 sb = 10,000 cd/m²
例子:
将15 每平方米烛台转换为stilb：
15 cd/m² = 0.002 sb
| 每平方米烛台 | stilb |
|---|---|
| 0.01 cd/m² | 1.0000e-6 sb |
| 0.1 cd/m² | 1.0000e-5 sb |
| 1 cd/m² | 0 sb |
| 2 cd/m² | 0 sb |
| 3 cd/m² | 0 sb |
| 5 cd/m² | 0.001 sb |
| 10 cd/m² | 0.001 sb |
| 20 cd/m² | 0.002 sb |
| 30 cd/m² | 0.003 sb |
| 40 cd/m² | 0.004 sb |
| 50 cd/m² | 0.005 sb |
| 60 cd/m² | 0.006 sb |
| 70 cd/m² | 0.007 sb |
| 80 cd/m² | 0.008 sb |
| 90 cd/m² | 0.009 sb |
| 100 cd/m² | 0.01 sb |
| 250 cd/m² | 0.025 sb |
| 500 cd/m² | 0.05 sb |
| 750 cd/m² | 0.075 sb |
| 1000 cd/m² | 0.1 sb |
| 10000 cd/m² | 1 sb |
| 100000 cd/m² | 10 sb |
规则