# 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 sec Relative velocity v km/s≦c 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit Elapsed time at observer T sec Velocity ratio to light v/c %
Special relativity (time dilation)
 [1-10] /176 Disp-Num5103050100200
[1]  2021/06/05 02:34   Female / Under 20 years old / High-school/ University/ Grad student / A little /
Purpose of use
Comment/Request
would like to be able to select time in years instead of seconds
[2]  2021/04/18 10:44   Male / 50 years old level / An engineer / Very /
Purpose of use
In my Air Force career flying for over 21 years, curious as to how much I actually aged.
[3]  2021/04/16 13:08   Male / 40 years old level / Others / Useful /
Purpose of use
I'm trying to recalibrate my time pod. I finally made it to a century with a primitive version of the internet, please somebody hel
[4]  2021/04/10 12:51   Male / 30 years old level / An office worker / A public employee / Very /
Purpose of use
learn about time dilation for fun
[5]  2021/02/17 19:18   Male / 30 years old level / A teacher / A researcher / Useful /
Purpose of use
Calculate the time dilation of Perseverance on it's way to Mars.
[6]  2021/01/20 06:18   Male / 30 years old level / Others / A little /
Purpose of use
Calculating time difference between someone living at equator vs artic circle.
[7]  2020/12/14 03:07   Male / 20 years old level / Others / Useful /
Purpose of use
to determine what fraction of c a muon would need to travel in an accelerator to have a decay rate on the order of seconds relative to outside observers
Comment/Request
This calculator would infinitely improved if you could manipulate units, rearrange input/output parameters, and if it had a key for acceptable inputs or a broader range of acceptable inputs to convey the same meaning. For example if one could input in units of a fraction of c or different units besides km/s and intervals of time other than seconds. Also I had to discover your acceptable input notation for scientific notation by trail and error.
Otherwise it was helpful and accurate.
[8]  2020/12/06 09:48   Male / 60 years old level or over / A retired person / Useful /
Purpose of use
Developing a humorous explanation of how I managed to do the Saturday crossword in about 60% of my average time.
[9]  2020/11/18 10:27   Male / 50 years old level / An office worker / A public employee / Useful /
Purpose of use
Curious about the time dilation effect of our current speed of travel on Earth as it moves on it's axis, around the Sun, around the galaxy and through the universe versus a hypothetical stationary observer.
[10]  2020/11/16 14:56   Male / Under 20 years old / Self-employed people / Very /
Purpose of use
General curiosity and not wanting to do calculations/make my own calculator.

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