The average cost of fireworks depends on the size, quality and number of fireworks used. Typically, fireworks are used as part of a show where dozens of fireworks are set off. A fireworks show can cost anywhere from $3000 to $200,000 for the very extravagant shows. The price of a fireworks show does not only include the cost of the fireworks themselves, but also the cost of the staff running the show and the launching equipment. Single fireworks when not part of a show can cost from a few dollars to hundreds of dollars, depending on their size.