The speed of light is equal to 186,000 miles per second, or the time it takes for light to travel in a vacuum. To convert feet into miles, remember that there are 5,280 feet in a mile: x ft (1 mile/5280 ft) = miles. [1] To calculate the actual distance of a light year, you simply need to multiply the speed of light by the number of seconds in a year. 40 trillion is 40 x 10^12 or 4.0 x 10^13. The conversion factor is one light year equals 9.46 x 10^12 km. How long would it take to travel 13.1 miles at the speed of light? So enter .25 in the calculator to determine the distance that light … Learn more... At first glance, you may think that a light year is a measure of time given that it has the word year in it. wikiHow is where trusted research and expert knowledge come together. Responses must be helpful and on-topic. To calculate this number, use the formula d = c × t, where d is 1 light year, c is the speed of light, and t is the number of seconds in 1 year. In one year (365.25 days) that is equivalent to 5,869,713,600,000 miles. Approved. % of people told us that this article helped them. One lightyear corresponds to about 9.461e15 m, 5.879e12 mi, or 63239.7 AU, or 0.3066 pc. Divide 4.0 x 10^13 by 9.46 x 10^12. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Contact | wikiHow marks an article as reader-approved once it receives enough positive feedback. A light year is just the distance traveled by light in a year. Thanks to all authors for creating a page that has been read 202,177 times. Example: How far does light travel in 3 months. Since speed of light is represented by the variable “c”, you can rewrite the equation as d = c x t, where d is the distance of a light year, c is the speed of light and t is time. terms and conditions. It would take roughly seven hundred-thousandths (.00007) of a second. Well-versed=able to do research. think that I will be visiting again. Unit Descriptions 1 Light Year: 1 Light year is 9.460 730 472 5808 x 10 15 meters (SI unit). Please share if you found this tool useful: (adsbygoogle = window.adsbygoogle || []).push({}); A reasonable effort has been made to ensure the accuracy of the information presented on this web site. It's more meaningful to think of the sun as being 8.3 light-minutes away. It is another way to simplify the numbers used to calculate and discuss astronomical distances. Is it true that if our sun suddenly blew up, we wouldn't know it for 8 minutes? There are 11 references cited in this article, which can be found at the bottom of the page. wikiHow's. Plug these values into the formula and solve for d. For more help, like how to convert distances into light years, read on. ", "Simple, clear and very understandable report! Do you think that the government is covering up some alien contact? miles to light-years (traditional) converter 1 mile (mi) is equal 1.7027507939076E-13 light-year (traditional) use this converter light-years (traditional) to miles converter 1 light-year (traditional) is equal 5872850000000 miles (mi) Since there are various definitions for the length of a year, there are correspondingly slightly different values for a lightyear. Astronomers observe the star and use a method called parallax, which gives the distance in parsecs. ". Remember, there are always multiple ways to get help when looking for an answer. A light year is not a measure of time. Theory of Non-Relativity : outside the box thought. is not responsible for any inaccurate data provided. If a star is a million light years from Earth, we are seeing light from that star as it appeared a million years ago. Please attribute when using the work, thank you! To learn how we use any data we collect about you see our privacy policy. Thank you. Lightyears to Parsecs formula This question is in the General Section. Last Updated: August 29, 2019 How far is 40 light-years? Light years are actually a measure of distance that uses light as a standard. Please try again. That is about 8.3 light minutes, give or take a second. 13 years old and agree to the Nicely explained for any lay person. 40 trillion km is equal to how many light years? Light Years to Miles = LY * 5,877,000,000,000 ”. A lightyear is the distance that light travels in one year. ",,,,,,, consider supporting our work with a contribution to wikiHow. How do I calculate how many light years Alpha Centauri is from the sun? Content on this site produced by is available under a creative commons license unless otherwise stated. For this calculation we will use the speed of light, c, equals 186,000 miles per second. So you would divide 93 million by 5.875 trillion to calculate the distance in light-years. Oops. ” Miles to Light Years = M / 5,877,000,000,000 If you want miles, you will need the speed of light in miles per second. This can be rewritten in. You need to know the number of seconds in one Earth year for this calculation. The conversions on this site will not be accurate enough for all applications. The number of seconds in 1 year is equal to 31,536,000 seconds. By using our site, you agree to our. 2009-2020,, Creative Commons Attribution 3.0 Unported License, 1 Light Years to Megameters = 9460730472.58, 70 Light Years to Megameters = 662251133081, 2 Light Years to Megameters = 18921460945.2, 80 Light Years to Megameters = 756858437806, 3 Light Years to Megameters = 28382191417.7, 90 Light Years to Megameters = 851465742532, 4 Light Years to Megameters = 37842921890.3, 100 Light Years to Megameters = 946073047258, 5 Light Years to Megameters = 47303652362.9, 200 Light Years to Megameters = 1.89214609452E+12, 6 Light Years to Megameters = 56764382835.5, 300 Light Years to Megameters = 2.83821914177E+12, 7 Light Years to Megameters = 66225113308.1, 400 Light Years to Megameters = 3.78429218903E+12, 8 Light Years to Megameters = 75685843780.6, 500 Light Years to Megameters = 4.73036523629E+12, 9 Light Years to Megameters = 85146574253.2, 600 Light Years to Megameters = 5.67643828355E+12, 10 Light Years to Megameters = 94607304725.8, 800 Light Years to Megameters = 7.56858437806E+12, 20 Light Years to Megameters = 189214609452, 900 Light Years to Megameters = 8.51465742532E+12, 30 Light Years to Megameters = 283821914177, 1,000 Light Years to Megameters = 9.46073047258E+12, 40 Light Years to Megameters = 378429218903, 10,000 Light Years to Megameters = 9.46073047258E+13, 50 Light Years to Megameters = 473036523629, 100,000 Light Years to Megameters = 9.46073047258E+14, 60 Light Years to Megameters = 567643828355, 1,000,000 Light Years to Megameters = 9.46073047258E+15. 3 months is 1/4 year. 1 year x 365 days/year x 24 hours/day x 60 minutes/hour x 60 seconds/minute = 31,536,000 seconds. We've seen the light from a supernova that could potentially destroy them, but the Pillars are farther away from us than the supernova is, so the light from their possible destruction hasn't reached us yet. [4] How do I calculate light years to proxima centauri? However, to answer your question, the sun is roughly 93 million miles from earth, and light travels at the speed of 5.875 trillion miles in a year. Therefore a light year is exactly 9,460,730,472,580.8 kilometers. X You can't. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. Distance light can travel in a vacuum over a period of 365.25 days. If you have ever told a friend you are about five minutes away, you have also used time as a measure of distance. anybody well versed in this area? For more help, like how to convert distances into light years, read on. How can I know it's even there any more? To calculate a light year, just multiply by the number of seconds in a year, which is 60 * 60 *24 *365. Boost your career: Improve your Zoom skills. To convert meters into kilometers, simply divide by 1000: x m (1 km/1000 m) = km. ", "Quite useful. It is approximately 10 trillion kilometres (or about 6 trillion miles). In February 2017, astronomers detected seven Earth-sized planets orbiting Thanks for the help, I have a quiz tomorrow in science. Thank you. If E=MCsquared, then does energy freed of its body simply remain suspended? You can't calculate it directly. You are increasing my, "I just needed to know the dynamics behind the calculation. Light Year Calculator Light year is an unit of length utilized casually to express astronomical distances. A good case of this is the Pillars of Creation in the Eagle nebula. Before using any of the provided tools or data you must check with a competent authority to validate its correctness. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Research source One light year is 9.5 million million km, so multiply the number of light years by 9.5 million million. Sun is about 93 million miles from earth. For example, the observed stellar distance of Alpha Centauri from Earth is 4.367 light years. I was very impressed. In this case, several readers have written to tell us that this article was helpful to them, earning it our reader-approved status. One light year is equal to 5.8 trillion miles. A light year is the distance that light travels in one year. 11,000 light years is the distance light travels in 11,000 Earth years. How can I calculate the light years from earth to sun? We use cookies to make wikiHow great. "I am just starting to discover (and wanting to discover) more about Astrology. Light travels at approximately 186,000 miles per second. The distances between stars across the universe are very great, so astronomers use light years as a larger unit than miles or kilometers. Google is very helpful for unit conversions. (details ). Light travels a whopping 9,460,528,000,000 km in a year, equivalent to 5,878,499,562,555 miles. However, the accuracy cannot be guaranteed. The year used by the International Astronomical Union is 365.25 days.