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Space Travel Calculator
Calculate how long it would take to reach planets, stars, or galaxies, as well as fuel mass, velocity and more!
Planets
Solar System
Objects
Questions
Kids
Buyer's Guides
Select Your Destination
Select Destination
Star or Galaxy
Exoplanet
Planet or Dwarf
Sun
Mars
Jupiter
Saturn
Uranus
Neptune
Venus
Mercury
Barnard's Star
Wolf 359
Lalande 21185
Luyten 726-8
Lacaille 9352
Choose Universe Model
Einstein's Universe
Newton's Universe
Acceleration
m/s²
g
ft/s²
Spaceship Mass
kg
tons
Ib
stones
US ton
imperial tons
Distance
m
km
ft
yd
mile
ly
au
parsec
Aim
Aim
Arrive at destination and stop
Arrive at destination at full speed
Journey Details
Time Passed
sec
min
hrs
dys
week
month
yrs
Time Passed in Spaceship
sec
min
hrs
dys
week
month
yrs
Maximum Velocity
m/s
km/h
ft/s
mile/h
km/s
mile/s
c
Required Fuel Mass
Kg
tons
Ib
stones
US ton
imperial tons
Fuel Energy Equivalent
J
MJ
ft-Ibs
10¹² J
10¹⁵ J
10¹⁸ J
10²¹ J
10²⁴ J
Maximum Kinetic Energy
J
KJ
MJ
Wh
KWh
MWh
ft-Ibs
β [v/c]
γ [1/√(1 - β²)]
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