Unit Gph
Name gigaphot
Category Illuminance
Details A gigaphot (Gph) is a unit of illuminance in the field of photometry, which deals with the measurement of visible light in terms of its perceived brightness to the human eye. Illuminance refers to the amount of light incident upon a surface per unit area. The gigaphot is equal to one billion (10^9) phots, where a phot is a unit equal to 10,000 lux.

Lux is the International System of Units (SI) unit of illuminance, and is defined as one lumen per square meter (lm/m²). In other words, the gigaphot measures the intensity of light in terms of how many billions of lumens fall on a square meter area. This unit can be used to describe situations with extremely high illuminance, such as the intensity of sunlight during solar flares or in industrial settings with powerful lighting systems.
Gph(gigaphot) to alx(attolux)Gph(gigaphot) to aph(attophot)Gph(gigaphot) to clx(centilux)Gph(gigaphot) to cph(centiphot)Gph(gigaphot) to dalx(decalux)Gph(gigaphot) to daph(decaphot)Gph(gigaphot) to dlx(decilux)Gph(gigaphot) to dph(deciphot)Gph(gigaphot) to Elx(exalux)Gph(gigaphot) to Eph(exaphot)Gph(gigaphot) to fc(foot-candle)Gph(gigaphot) to flx(femtolux)Gph(gigaphot) to fph(femtophot)Gph(gigaphot) to Glx(gigalux)Gph(gigaphot) to hlx(hectolux)Gph(gigaphot) to hph(hectophot)Gph(gigaphot) to klx(kilolux)Gph(gigaphot) to kph(kilophot)Gph(gigaphot) to lm/am²(lumen per square attometre)Gph(gigaphot) to lm/cm²(lumen per square centimetre)Gph(gigaphot) to lm/dam²(lumen per square decametre)Gph(gigaphot) to lm/dm²(lumen per square decimetre)Gph(gigaphot) to lm/Em²(lumen per square exametre)Gph(gigaphot) to lm/fm²(lumen per square femtometre)Gph(gigaphot) to lm/ft²(lumen per square foot)Gph(gigaphot) to lm/Gm²(lumen per square gigametre)Gph(gigaphot) to lm/hm²(lumen per square hectometre)Gph(gigaphot) to lm/in²(lumen per square inch)Gph(gigaphot) to lm/km²(lumen per square kilometre)Gph(gigaphot) to lm/Mm²(lumen per square megametre)Gph(gigaphot) to lm/mm²(lumen per square millimetre)Gph(gigaphot) to lm/m²(lumen per square metre)Gph(gigaphot) to lm/nm²(lumen per square nanometre)Gph(gigaphot) to lm/Pm²(lumen per square petametre)Gph(gigaphot) to lm/pm²(lumen per square picometre)Gph(gigaphot) to lm/Tm²(lumen per square terametre)Gph(gigaphot) to lm/ym²(lumen per square yoctometre)Gph(gigaphot) to lm/Ym²(lumen per square yottametre)Gph(gigaphot) to lm/zm²(lumen per square zeptometre)Gph(gigaphot) to lm/Zm²(lumen per square zettametre)Gph(gigaphot) to lm/µm²(lumen per square micrometre)Gph(gigaphot) to lx(lux)Gph(gigaphot) to Mlx(megalux)Gph(gigaphot) to mlx(millilux)Gph(gigaphot) to Mph(megaphot)Gph(gigaphot) to mph(milliphot)Gph(gigaphot) to nlx(nanolux)Gph(gigaphot) to nph(nanophot)Gph(gigaphot) to nx(nox)Gph(gigaphot) to ph(phot)Gph(gigaphot) to Plx(petalux)Gph(gigaphot) to plx(picolux)Gph(gigaphot) to Pph(petaphot)Gph(gigaphot) to pph(picophot)Gph(gigaphot) to Tlx(teralux)Gph(gigaphot) to Tph(teraphot)Gph(gigaphot) to ylx(yoctolux)Gph(gigaphot) to Ylx(yottalux)Gph(gigaphot) to yph(yoctophot)Gph(gigaphot) to Yph(yottaphot)Gph(gigaphot) to zlx(zeptolux)Gph(gigaphot) to Zlx(zettalux)Gph(gigaphot) to zph(zeptophot)Gph(gigaphot) to Zph(zettaphot)Gph(gigaphot) to µlx(microlux)Gph(gigaphot) to µph(microphot)