What is the value of one light year?

Answer 1

Distance (metres) = velocity (metres / sec) * time (seconds)

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velocity of light = 299 792 458 metres per second

1 year = 365.2425 days = 31 556 952 seconds

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Distance = 9 460 536 207 068 020 metres

Distance = 9.46054 * 1015 metres approx.

Answer 2

1 Light year is approx this much distance: 1 ly = 9454254955488 km.

A light year is a distance (e.g. can be measured in miles) and a year is a measure of time (e.g. can be measured in days or hours). So 1 light-year per year can be measured in miles per hour, i.e. it is a speed. Specifically, it is the speed of light.

Answer 3

Please note that a light-year is the distance light travels in a year - about 9.5 x 1012 kilometers. It is a unit of distance, not a unit of time. You can not convert between units of distance and units of time.

Answer 4

One light year is the distance that light travels in one year, approximately 5.88 trillion miles or 9.46 trillion kilometers. It is used to measure vast distances in space due to the immense speed of light.