Escape velocity Calculator

Calculates the escape velocities from the planet and from the solar system.

Escape velocity
the planet
Mass M
    1. kg
radius r
    1. km
Orbit radius R
    1. AU
    1. kg
Gravity G

the first cosmic velocity V1 
    1.  
    2. km/s
    3. Orbit around the planet
the second cosmic velocity V2 
    1.  
    2. km/s
    3. Escape velocity from the planet
orbital speed Vc 
    1.  
    2. km/s
orbital period Tc 
    1.  
    2. year
the third cosmic velocity V3 
    1.  
    2. km/s
    3. Escape velocity from the solar system
The third cosmic velocities of the Sun and the moon are calculated as the escape velocities from the galaxy and the Earth respectively.
 Earth's mass=5.974E24
 Sun's mass=1.989E30
 Galaxy's mass=2.8E41

    Escape velocity
    [1-10] /15Disp-Num
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    [1]  2021/02/28 19:39   Male / 40 years old level / A teacher / A researcher / A little /
    Purpose of use
    For research purposes
    Comment/Request
    A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is
    [2]  2020/10/30 00:47   Male / 50 years old level / Self-employed people / Useful /
    Purpose of use
    science fiction musings
    [3]  2020/07/17 08:32   Male / 50 years old level / A teacher / A researcher / Very /
    Purpose of use
    very test calculation
    [4]  2020/07/01 08:39   Male / Under 20 years old / Elementary school/ Junior high-school student / A little /
    Purpose of use
    attempting to determine escape velocity of apophis
    Comment/Request
    please alow custom mass input
    [5]  2020/04/15 05:50   Female / Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    AP Physics Class
    [6]  2020/03/15 00:19   Male / 40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Home project
    Comment/Request
    Need to escape planet
    [7]  2020/02/12 21:44   Male / 30 years old level / A teacher / A researcher / Very /
    Purpose of use
    Self educating on astrophysics
    [8]  2020/02/01 12:30   Male / 50 years old level / An office worker / A public employee / Useful /
    Purpose of use
    curiosity
    [9]  2019/09/21 21:33   Male / 60 years old level or over / A retired person / Very /
    Purpose of use
    Orbital velocities for various altitudes, for a story I'm writing.
    Comment/Request
    WOW! Just noticed all the other calculators. This is when the word 'awesome' is appropriate.
    [10]  2019/07/06 03:35   Male / 60 years old level or over / A retired person / Very /
    Purpose of use
    To verify calculated answers, and find out what mistakes I may have made or steps missed in calculations.Very useful website.Thank You :-)
    Comment/Request
    Can you add rendezvous with ISS, Inclination changes, time for burn, launch inclinations for orbit and rendezvous?
    Thank You!

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