Planets travel at different speeds along their orbits around the Sun. Said orbits also become exponentially longer the farther away the planet is from the Sun. As a result, the time it takes for each planet in the Solar system to complete one trip around the Sun, or a year as we commonly say, varies greatly.

The calculator below will help you find out what your age would be on Neptune. Below, you will find a more detailed explanation of how this is calculated and the numbers that factor into it.

Age on Neptune Calculator

Enter your age


Note: the “months” estimated above are found by dividing the planet’s year by 12, like we do on Earth. There is no standard for how long a month would last on a different planet.

How to Calculate Your Age on Neptune

When we say that we are going to calculate your age on a different planet, what we mean is finding out the number of orbits that the planet has completed in the same amount of time as your age here on Earth.

Calculating your age on Neptune is very simple as we have to do a rule of three. The formula is as follows:

Neptune Age = (Earth Age in Years × Earth’s Orbital Period) ÷ Neptune’s Orbital Period

Differences between Earth and Neptune’s orbits

Earth Neptune
Orbit Length (km) 940 million 27.2 billion
Rotation Period (Earth days) 1 (24 hours) 0.67 (16 hours 6 minutes)
Orbital Period (Earth days) 365.25 60,190
Distance to the Sun (million km) 149.6 4,495.1
Author

Elena is a Canadian journalist and researcher. She has been looking at the sky for years and hopes to introduce more people to the wonderful hobby that is astronomy.