299,792,458 Meters per Second
299,792,458 Meters per Second
Quickly & correctly answer 75 skill problems in a row (time limit depends on skill difficulty)
Type Earth badge
Energy point(s) awarded 5000
Status Available

299,792,458 Meters per Second is an Earth badge. To earn it, the user has to consecutively submit 75 correct answers in any exercise within the time limit, which depends on the difficulty of the skill. Having a slow or incorrect answer means that the user has to start all over again, meaning this badge may be frustrating to achieve. User can find the time limits for each exercise here. This badge can be found here on Khan Academy.

This badge, as all speed badges, can be earned only once per exercise.

Similar badge(s)


  • Before Spring 2011, 299,792,458 Meters per Second was a Sun badge. As more exercises came along, the badge got changed into an Earth badge.
299,792,458 Meters per Second as Sun Badge

299,792,458 Meters per Second as Sun badge

  • Users can achieve Tesla by earning this badge about 300 times.
  • 299,792,458 meters per second is the speed of light.

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