Calculate from distance into other length unit measures. Why would you want such a big unit of distance? How many light years are there in 1 meter ... explain. Since light travels at about 186,300 miles per second, with 86,400 seconds per day and about 365 days per year, that works out at about: 186300 × 86400× 365 ≈ 5,875,000,000,000 miles. 3 months is 1/4 year. Light year to Parsec conversion example. To obtain an idea of the size of a light-year, take the circumference of the earth (24,900 miles), lay it out in a straight line, multiply the length of the line by 7.5 (the corresponding distance is one light-second), then place 31.6 million similar lines end to end. 1 light years to km conversion. 1 Light Second: 1 Light second is equal to 299 792 458 meters (SI unit . This converter is very easy. What Is a Light-Year? - MSN The nearest star. The answer is 6.6347942351725E-17. Difference between Parsecs and Light years 1 astronomical unit (AU) is equivalent to the average radius of the Earth's orbit. A trip at light-speed to the very edge of our solar system - the farthest reaches of the Oort Cloud, a collection of dormant comets way, way out there - would take about 1.87 years. A parsec is also equivalent to approximately 3.26 light years (the journey distance if you travelled at the speed of light for three years and three months). 1 5 3 6 × 1 0 7 s 1 Light year = 3 × 3.15 × 10 15 m. 1 Light year = 9.46 × 10 15 m. So we get to know that, The value of one light year in metres is = 9.46 × 10 15 m which means. 1 Light Year is equivalent to how much metre? The resulting distance is almost 6 trillion (6,000,000,000,000) miles! 1 au in light years 1 astronomical unit or au is equal to 1.5812507 × 10⁻⁵ or 1.5812e-5 light years Distance From Earth to Sun in Light Years Note: Light year is an astronomical unit . . . More p recisely, one light-year is equal to 9,500,000,000,000 kilometers. So in one year, it can travel about 10 trillion km. 1 light year = 63241 au. A good approximation would be: 1 light-year = 63240 AU (astronomical units) Just for information, 1 light-year is equivalent to the distance travelled by light in 1 year moving in a vacuum. It has dimensions of Distance. 13 Light-years: 1.229891 × 10 14 Kilometers: 14 Light-years: 1.324498 × 10 14 Kilometers: 15 Light-years: 1.419105 × 10 14 Kilometers: 16 Light-years: 1.513712 × 10 14 Kilometers: 17 Light-years: 1.608319 × 10 14 Kilometers: 18 Light-years: 1.702926 × 10 14 Kilometers: 19 Light-years: 1.797533 × 10 14 Kilometers: 20 Light-years: 1.89214 . It is approximately equal to 9.46 ×10 12 kilometers, or 5.88 ×10 12 miles. Our galaxy, the Milky Way, is about 150,000 light-years across, and the nearest large . One Day is With the Lord as a Thousand Years and a Thousand Years as ...