spark energy?

[monoman]

can anyone please provide me with a formula to calculate the energy of a spark between two terminals of a spark plug? (in relation to the distance between them, and the voltage across them)

thanks for any help

 

[marcoz]

somebody told me 1 mm was about 1000 volt.

marcoz

 

[monoman]

thank you for the very quick reply, but it is the energy of the spark that i am trying to calculate.