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OrbitLab
From AU to kilometers to light-minutes.
One astronomical unit (the Earth-Sun distance, about 149.6 million km) is used because solar-system distances in kilometers are unwieldy — Jupiter's ~5.2 AU is far easier to grasp than 778 million km.
The same distance that converts to a light-travel-time delay is exactly why real-time control of Mars rovers is impossible — commands take several minutes each way, so rovers must operate with a degree of onboard autonomy.
Molar mass of any chemical formula (e.g. H2O, C6H12O6, Ca(OH)2).
OpenPercent composition of an element within a chemical formula.
OpenSimplest whole-number ratio formula from elemental masses or percentages.
OpenPercent yield from actual and theoretical reaction yields.
OpenDistance (km)
149,597,870.7
What you entered
km = AU × 149,597,870.7
1 × 149597870.7= 149597870.7 kmLight travel time
149597870.7 ÷ 299792.458 km/s ÷ 60= 8.3167 minResult
Distance (km): 149,597,870.7
1 AU is 149,597,871 km — light takes 8.32 minutes to cross that distance.