Lightning Distance Calculator

Calculate how far away a lightning strike occurred by measuring the time between seeing the flash and hearing the thunder.

Lightning Distance Calculator

Time between seeing the flash and hearing the thunder.

How to Use

  1. 1

    See the Flash

    When you see a lightning flash, immediately start counting the seconds.

  2. 2

    Hear the Thunder

    Stop counting as soon as you hear the crack or rumble of thunder.

  3. 3

    Enter Time

    Input the number of seconds into the calculator and click calculate to find the distance.

Frequently Asked Questions

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