Popular conversions
Use the interactive converter to enter your own value and select any supported pair in this family.
Illuminance converter
Convert illuminance and luminance reference units. Use the interactive converter to enter your own value and select any supported pair in this family.
Supported units (3)
Each row links to the live converter. The factor column uses the family’s stated base unit for linear families; for specialized reciprocal or numeral systems, use the live converter and the family-specific explanation.
| Source unit | Factor to base unit | Tool |
|---|---|---|
luxlx | 1 | Convert this unit ↗ |
foot-candlefc | 10.76391042 | Convert this unit ↗ |
photphot | 10000 | Convert this unit ↗ |
Important note
Unit standards, historical definitions and approximations can vary. Cooking volume-to-mass conversions depend on the ingredient; currencies require an exchange rate; sizing systems may be discrete; and logarithmic quantities such as decibels need purpose-built formulas rather than a linear scale.
For laboratory, medical, aviation, engineering or other safety-critical work, verify the definitions and standards that apply to your use case.