Quest GiggleHow fast does light travel per second?
299,792 km. Seven and a half laps around the Earth — in the blink of an eye.
How close would your guess have been?
In the game we ask it like this: “How many kilometres does light travel in one second?”
Type a number — scored exactly the way a round in the game is.
The answer
299,792km
299,792 km in other units
- 186,282 miles
