Illuminance units Conversion
This tool converts illumination units. It also includes conversion tables.
Illumination units
Lux units
lx : lux
mlx : millilux
SI units and derived
lm/m² : lumen per square meter
lm/cm² : lumen per square cm
cd.sr/m² : candela steradian per square meter
m.cd : candela meter
cm.cd : cm candela
US/UK Customary
fc : football candle
lm/ft² : lumen per square foot
Other units
nx : nox
ph : phot
Light Illumination Unit Conversion Tables
Lux units / SI units and derived| # | lm/m² | lm/cm² | cd.sr/m² | m.cd | cm.cd |
|---|---|---|---|---|---|
| 1 lx = | 1 | 0.0001 | 1 | 1 | 0.0001 |
| 1 mlx = | 0.001 | 1.0e-7 | 0.001 | 0.001 | 1.0e-7 |
Lux units / US/UK Customary
| # | fc | lm/ft² |
|---|---|---|
| 1 lx = | 0.0929 | 0.0929 |
| 1 mlx = | 0.0001 | 0.0001 |
Lux units / Other units
| # | nx | ph |
|---|---|---|
| 1 lx = | 1000 | 0.0001 |
| 1 mlx = | 1 | 1.0e-7 |
SI units and derived / Lux units
| # | lx | mlx |
|---|---|---|
| 1 lm/m² = | 1 | 1000 |
| 1 lm/cm² = | 10000 | 1.0e+7 |
| 1 cd.sr/m² = | 1 | 1000 |
| 1 m.cd = | 1 | 1000 |
| 1 cm.cd = | 10000 | 1.0e+7 |
SI units and derived / SI units and derived
| # | lm/m² | lm/cm² | cd.sr/m² | m.cd | cm.cd |
|---|---|---|---|---|---|
| 1 lm/m² = | 1 | 0.0001 | 1 | 1 | 0.0001 |
| 1 lm/cm² = | 10000 | 1 | 10000 | 10000 | 1 |
| 1 cd.sr/m² = | 1 | 0.0001 | 1 | 1 | 0.0001 |
| 1 m.cd = | 1 | 0.0001 | 1 | 1 | 0.0001 |
| 1 cm.cd = | 10000 | 1 | 10000 | 10000 | 1 |
SI units and derived / US/UK Customary
| # | fc | lm/ft² |
|---|---|---|
| 1 lm/m² = | 0.0929 | 0.0929 |
| 1 lm/cm² = | 929.0304 | 929.0304 |
| 1 cd.sr/m² = | 0.0929 | 0.0929 |
| 1 m.cd = | 0.0929 | 0.0929 |
| 1 cm.cd = | 929.0304 | 929.0304 |
SI units and derived / Other units
| # | nx | ph |
|---|---|---|
| 1 lm/m² = | 1000 | 0.0001 |
| 1 lm/cm² = | 1.0e+7 | 1 |
| 1 cd.sr/m² = | 1000 | 0.0001 |
| 1 m.cd = | 1000 | 0.0001 |
| 1 cm.cd = | 1.0e+7 | 1 |
US/UK Customary / Lux units
| # | lx | mlx |
|---|---|---|
| 1 fc = | 10.7639 | 10763.9104 |
| 1 lm/ft² = | 10.7639 | 10763.9104 |
US/UK Customary / SI units and derived
| # | lm/m² | lm/cm² | cd.sr/m² | m.cd | cm.cd |
|---|---|---|---|---|---|
| 1 fc = | 10.7639 | 0.0011 | 10.7639 | 10.7639 | 0.0011 |
| 1 lm/ft² = | 10.7639 | 0.0011 | 10.7639 | 10.7639 | 0.0011 |
US/UK Customary / US/UK Customary
| # | fc | lm/ft² |
|---|---|---|
| 1 fc = | 1 | 1 |
| 1 lm/ft² = | 1 | 1 |
US/UK Customary / Other units
| # | nx | ph |
|---|---|---|
| 1 fc = | 10763.9104 | 0.0011 |
| 1 lm/ft² = | 10763.9104 | 0.0011 |
Other units / Lux units
| # | lx | mlx |
|---|---|---|
| 1 nx = | 0.001 | 1 |
| 1 ph = | 10000 | 1.0e+7 |
Other units / SI units and derived
| # | lm/m² | lm/cm² | cd.sr/m² | m.cd | cm.cd |
|---|---|---|---|---|---|
| 1 nx = | 0.001 | 1.0e-7 | 0.001 | 0.001 | 1.0e-7 |
| 1 ph = | 10000 | 1 | 10000 | 10000 | 1 |
Other units / US/UK Customary
| # | fc | lm/ft² |
|---|---|---|
| 1 nx = | 0.0001 | 0.0001 |
| 1 ph = | 929.0304 | 929.0304 |
Other units / Other units
| # | nx | ph |
|---|---|---|
| 1 nx = | 1 | 1.0e-7 |
| 1 ph = | 1.0e+7 | 1 |