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Fireworks Budget Calculator

Split a backyard fireworks budget into aerial cakes, a finale and ground effects, and see how many cakes you can afford.

Total budget
People watching
Average cost per cake
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How it works

Cakes budget = 50% · Finale = 30% · Ground = 20% · Cakes = floor(cakes budget ÷ cost per cake)

A satisfying backyard show puts about half the budget into aerial "cakes" — the multi-shot boxes that do the heavy lifting — reserves roughly 30% for a bigger, denser finale to end on, and spends the last 20% on fountains, sparklers and ground effects that fill gaps between the big shots. Buying one large finale piece instead of many small cakes usually gives a stronger ending for the money.

Worked example

From a $300 budget, 50% ($150) goes to cakes: at $25 each that is floor(150 ÷ 25) = 6 cakes. The finale gets 30% ($90) and ground effects 20% ($60). Across 20 guests that is about $15 per person.

Frequently asked questions

How much should I budget for a backyard fireworks show?

It scales with how long a show you want. A short 5-minute display can run $100–$200, while a 15-minute show with a strong finale often runs $300–$600. Splitting it 50/30/20 across cakes, finale and ground effects keeps the pacing balanced.

What is a firework "cake"?

A cake is a single box holding many tubes that fire in sequence from one fuse, producing a run of aerial effects. Because it does a lot from one light, cakes are the backbone of a home show and where most of the budget goes.

Are consumer fireworks legal where I live?

Laws vary widely by country, state and even city — some allow aerial consumer fireworks, others permit only ground-based items or ban them outright. Check your local regulations and any burn bans before buying, and always follow the safety instructions on each item.

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This calculator is for educational purposes. Double-check important results before acting on them.