Cosmic Distance Calculator
Compare distances between planets and see how long it would take to travel between them at different speeds -- from walking to the speed of light.
78.30 million km
Average distance (based on mean orbital radii)
Travel Time Comparison
Walking
5 km/h
1.8 thousand years
Car
120 km/h
74.4 years
Commercial Plane
900 km/h
9.9 years
Bullet
1,200 km/h
7.4 years
Rocket (Apollo)
40,000 km/h
81.6 days
New Horizons
58,536 km/h
55.7 days
Speed of Light
1.08B km/h
4 minutes
Distances from Earth
Historic Deep-Space Spacecraft
Voyager 1
The most distant human-made object, now in interstellar space. Carries the Golden Record.
Launch
September 5, 1977
Speed
61,200 km/h
Current Distance
24.4 B km
Status
Active - Interstellar space
Voyager 2
The only spacecraft to visit all four giant planets. Entered interstellar space in 2018.
Launch
August 20, 1977
Speed
55,400 km/h
Current Distance
20.3 B km
Status
Active - Interstellar space
New Horizons
First spacecraft to fly by Pluto (2015) and Kuiper Belt object Arrokoth (2019).
Launch
January 19, 2006
Speed
58,536 km/h
Current Distance
8.2 B km
Status
Active - Kuiper Belt
Pioneer 10
First spacecraft to cross the asteroid belt and fly by Jupiter.
Launch
March 2, 1972
Speed
44,000 km/h
Current Distance
19.4 B km
Status
Signal lost (2003)
Pioneer 11
First spacecraft to study Saturn and its rings at close range.
Launch
April 5, 1973
Speed
40,000 km/h
Current Distance
16.5 B km
Status
Signal lost (1995)
Distances shown are approximate averages based on mean orbital radii. Actual distances vary with orbital positions. Source: NASA/JPL Horizons System.