# 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. | ||

- Purpose of use
- I like physics
- Comment/Request
- My boss asked me to do the work of 5 people. I was just wondered how close to the speed of light I would have to get to make that happen.

~ 97.979449503029%

[1] 2019/08/17 00:22 Male / 40 years old level / An engineer / Very /

- Purpose of use
- I'm a mathematician writing a fiction novel that motivates certain mathematical concepts. I took a course in special relativity in college, but forgot the formula for calculating the time differential experienced by the traveler relative to the observer. Thanks for posting this calculator!

[2] 2019/07/07 06:08 Female / 30 years old level / A teacher / A researcher / Useful /

- Purpose of use
- Curious the time differential between person on Earth and person orbiting Earth at 33,000 mph. Result ~13.75 sec/year.
- Comment/Request
- Unfortunately isn't accurate. The further from gravity source the faster the time. The closer to

strong/deep gravity well the slower the time. Alternatively, the faster the speed the slower the time. This calculation doesn't include gravimetric time dilation.

[3] 2019/07/06 04:15 Male / 60 years old level or over / Others / A little /

- Purpose of use
- There is a meme about how to practice 40h/day. Turns out the answer is moving at 239834 km/s.

[4] 2019/07/04 22:25 Male / 20 years old level / High-school/ University/ Grad student / Very /

- Purpose of use
- Research

[5] 2019/06/26 18:54 Male / Under 20 years old / High-school/ University/ Grad student / Very /

- Purpose of use
- Helping to create a science fiction novel.

[6] 2019/05/30 04:04 Male / Under 20 years old / Elementary school/ Junior high-school student / Very /

- Purpose of use
- leisure

[7] 2019/04/17 06:45 Male / 40 years old level / An engineer / Very /

- Purpose of use
- Working out how fast the ref in the PSG Man U game was travelling such that he played 9 minutes of the 3 added on

[8] 2019/03/10 06:33 Male / 50 years old level / Others / Very /

- Purpose of use
- Purpose: LOLs

My friend said he would be here in 5 minutes but it took him over 18 minutes so I told him he must be going very near the speed of light relative to me for any of that to make sense.

[9] 2019/03/08 13:53 Male / 30 years old level / Self-employed people / Very /

- Purpose of use
- Studies of quantum physics.

[10] 2019/03/06 11:10 Male / 20 years old level / High-school/ University/ Grad student / A little /

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