# What is the speed of light in miles per hour

Posted By Admin @ September 03, 2022

#### Question:

The speed of light is 3.00x10^8m/s. How fast is this in mph? Use the conversion 1mile = 1610m.

Use the conversion factors: 1 mile = 1610 meters, 1 min = 60 seconds, 1 hour = 60 minutes. Using these factors,
(3.00 x 10^8 m/s) x (1 mile / 1610 meter) x (60 s/ 1 min) x (60 min/ 1 h)
= 6.7x10^8 mph
Therefore, the speed of light in mph is approximately 6.7x10^8 mph.

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