# Lightning Strike Distance

on . Posted in Electromagnetism

## Lightning Strike Distance Formula

 $$\large{ d = a \; t }$$

### Where:

 Units English Metric $$\large{ d }$$ = lightning strike distance $$\large{mi}$$ $$\large{km}$$ $$\large{ a }$$ = speed of sound $$\large{\frac{ft}{sec}}$$ $$\large{\frac{m}{s}}$$ $$\large{ t }$$ = elapsed time between seeing the flash and hearing thunder $$sec$$ $$s$$