Measurement of various quantities has been an integral part of our lives since ancient times. In this modern era of automation, we need to measure quantities more so than ever. So, what is the importance of Illuminance converter? The purpose of Illuminance converter is to provide Illuminance in the unit that you require irrespective of the unit in which Illuminance was previously defined. Conversion of these quantities is equally important as measuring them. Illuminance conversion helps in converting different units of Illuminance. Illuminance is a term that describes the measurement of the amount of light falling onto (illuminating) and spreading over a given surface area.. There are various units which help us define Illuminance and we can convert the units according to our requirement. unitsconverters.com provides a simple tool that gives you conversion of Illuminance from one unit to another.