Special relativity (time dilation) Calculator

Calculates the time dilation of a body moving for some time with some relative velocity with respect to the observer.

Elapsed time at a body T0
    1. sec
Relative velocity v
    1. km/s
    2. ≦c

Elapsed time at observer T
    1.  
    2. sec
Velocity ratio to light v/c
    1.  
    2. %
    Special relativity (time dilation)
    [1-10] /166Disp-Num
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    [1]  2020/09/05 11:25   Male / 60 years old level or over / - / Very /
    Purpose of use
    To calculate how old someone travelling for a long time at relativistic speeds really is. Fiction writing.
    [2]  2020/08/18 07:07   Male / 20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    calculating elapsed time for relativistic space travellers
    Comment/Request
    Would be handy to be able to enter speed as a fraction of c. But overall this is quite handy as-is
    [3]  2020/08/18 07:06   Male / 20 years old level / High-school/ University/ Grad student / Useful /
    Purpose of use
    calculating elapsed time for relativistic space travellers
    Comment/Request
    Would be handy to be able to enter speed as a fraction of c. But overall this is quite handy as-is
    [4]  2020/08/16 03:59   Male / 30 years old level / An office worker / A public employee / Not at All /
    Purpose of use
    Looking for a way to calculate time dilations either by putting in the time difference or by using a % of C; I'm watching a Game Theory episode and MatPat severely goofed, somehow missing that you can have a decimal in a % of C.
    Comment/Request
    Allow at least entering a % of C to calculate the time dilation.
    [5]  2020/08/14 20:57   Female / 30 years old level / An engineer / Very /
    Purpose of use
    The concept of Time is just mind-blowing!
    Comment/Request
    Fine as is.
    [6]  2020/08/12 19:50   Male / 40 years old level / Self-employed people / Very /
    Purpose of use
    To determine how old a fast moving star 'thinks' it is relative to slower ones.
    [7]  2020/07/22 11:58   Male / 30 years old level / An engineer / Useful /
    Purpose of use
    Understand GPS satellite timing requirements
    [8]  2020/07/17 21:44   Male / 40 years old level / An engineer / Very /
    Purpose of use
    Calculating time contraction for space travellers.
    Comment/Request
    It would be useful the inverse fuction who calculate time from travellers point of view.
    [9]  2020/07/11 12:53   Male / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Deciding exactly how long it takes to travel one Earth year at Different major celestial bodies
    [10]  2020/07/05 10:42   Male / 30 years old level / An office worker / A public employee / A little /
    Purpose of use
    To qualify how bad the Sci-Fi I am reading (The Dark beyond the Stars) is

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