How accurate are these distances?

These are low-precision approximations based on NASA/JPL Table 1 mean orbital elements, valid from 1800 through 2050. They represent center-to-center ranges relative to the Earth-Moon barycenter, not topocentric observer distances. Use NASA JPL Horizons for precision work.

Why does the distance to Venus or Mars change so much?

Inner planets like Venus and Mars have orbits closer to Earth's, so when they are on the same side of the Sun the distance is small, but when they are on the opposite side the distance can be nearly double the diameter of their orbit. Outer planets change less dramatically in relative terms.

What is an astronomical unit (AU)?

The astronomical unit is defined as exactly 149,597,870.7 kilometers. It is a convenient standard unit for distances within the solar system.

Why is Pluto not included?

This comparison covers the seven other major planets relative to Earth. Pluto is classified as a dwarf planet and is not included in this major-planet view.

How often do the values update?

The displayed distances update automatically every 60 seconds using your device clock. You can also click the Refresh button for an immediate recalculation.

Does this calculator send my data to an ephemeris service?

No. The calculation runs in your browser and does not send entered data or request a remote ephemeris API.

Planet Distance Now

See the current approximate distance from Earth and the Sun to every major planet, calculated in your browser from NASA/JPL low-precision orbital elements.

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Distances are center-to-center approximations calculated from NASA/JPL Table 1 orbital elements (valid 1800–2050). Values refresh every 60 seconds. For precision ephemerides, use NASA JPL Horizons.

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Summary

See the current approximate distance from Earth and the Sun to every major planet, calculated in your browser from NASA/JPL low-precision orbital elements.

How it works

Your browser reads the current date and time.
Each planet's heliocentric position is estimated from NASA/JPL Table 1 mean orbital elements and secular rates, a low-precision model valid from 1800 through 2050.
The Earth-Moon barycenter position is computed with the same model.
The center-to-center straight-line distance is derived from the 3-D heliocentric coordinates.
Results are displayed in AU and millions of kilometers and refresh automatically every 60 seconds.

Use cases

Satisfy curiosity about how far Mars or Jupiter is from Earth right now.
Support classroom discussions about the dynamic nature of planetary distances.
Compare which major planets are currently nearest to or farthest from Earth.
Understand why communication delays to Mars missions vary so dramatically.
Illustrate how the solar system is in constant motion.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu

Planet Distance Now

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Frequently Asked Questions