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Events & Weddings Parties

KidStrong birthday party cost calculator

Work out what a KidStrong or kids-fitness birthday party will really cost, from the flat base package and the children it covers to the per-head charge for extra guests, the food, the cake, the goody bags, the coach gratuity and the sales tax that turn a quoted package into the bill you pay. See the total, a realistic range, and what each part adds.

§ 01 Your numbers

Change anything. The answer updates as you type.

The flat package the location quotes: the gym time, the coaches who run the session and usually a party room, before any extra guests or food.
How many children the flat package includes. This is the number that decides where the per-head charge starts, so get it in writing.
Your actual guest count. Only the children above the included count are charged per head, so the first few extra names are the expensive ones to add.
What the location charges for each child beyond the package count. Zero if your package is open-ended, which is rare.
Pizza, juice and snacks per head, whether the location caters it or you bring it in. Zero if food is folded into the package or the location does not allow outside food and you skip it.
The cake, goody bags, invitations, decorations or a theme upgrade, as one flat line. Zero if you skip them or the package covers them.
The tip for the coaches who run the session. Some locations add a service charge automatically as a percent, so check whether it is already on the quote.
Your state's sales tax on the package, the food and the extras. Confirm the taxable base, because states differ on whether a class or activity package is taxed.
Estimated cost
$851

Typical range $681 – $1,107

  • Base party package$400
  • Extra children above the package count$60
  • Food & drink$112
  • Cake, favors & extras$120
  • Coach gratuity$104
  • Sales tax$55
  • Total$851
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$500 to $950 all-in is a typical kids-fitness party with a handful of guests above the included count, food and favors. Get the included count, the per-head charge and the gratuity policy in writing so the quote and the final bill match.

What this assumes, and where it could be wrong

Every one of these is a place the number could be off. They are here because you should be able to check our working, not because we are hedging.

THE FLAT PACKAGE STOPS AT A HEAD COUNT, AND EVERY NUMBER HERE IS YOURS.
A kids-fitness party quotes a flat package for the gym time, the coaches and the room, and that package covers a set number of children. Every child above the count is charged per head, and the food, the cake and favors, the gratuity and the sales tax stack on after that. A KidStrong location is an individual franchise, so its package price, its included count and its per-extra charge are set locally rather than by any published statistic. The defaults here are ours and editable.

The included count matters as much as the package price. Two locations quoting the same flat figure are not quoting the same party if one covers ten children and the other covers sixteen. Compare the package and the count together, and work out the all-in per head before you decide which quote is better value.

Only the guests above the count cost extra, which makes the guest list a step function rather than a slope. Adding a child while you are still under the included count is free; the first name past it starts the per-head charge. If your list is sitting a name or two over, trimming it back to the count is the cleanest saving on the page.

Food and favors are where a package quietly grows. Pizza and drinks priced per head, a cake, goody bags, invitations and decorations each stack onto the base, and together they can rival the overage. They are also the easiest lines to scale back, and many locations let you bring food in, which is worth asking about before you order catering.

Gratuity and tax apply on top of everything else. Coaches run the session, and some locations add a service charge or expect a tip as a percent of the bill; sales tax then applies to the package, the food and the extras. Both are your own rates here, and the location's contract decides the taxable base, so confirm them before you trust the total.

Frequently asked questions

How much does a KidStrong birthday party cost?
Start from the flat base package the location quotes and check how many children it covers, then add the per-head charge for every guest above that count, the food and drink, the cake and favors, the coach gratuity and sales tax. Those lines are why the bill runs above the package price you were first quoted. The calculator above builds the real number from your own quote and guest list.
Why is the bill higher than the package price?
Because the package is the gym time, the coaches and usually a room, for a set number of children. Guests beyond that count are charged per head, and the food, the cake, the goody bags, a gratuity and sales tax each sit on top. Together they can add half again to the base. When you compare two locations, compare the all-in per head, not the package sticker, because one may fold food or a longer guest count in and the other may not.
Does KidStrong charge for extra children?
Typically yes. A kids-fitness package is written for a set number of children, and each guest above that count carries a per-head charge. The count and the charge are both set by the individual location, so ask for both figures in writing along with the cutoff for confirming your final head count, because a late addition on party day is usually charged at the same per-head rate.
How can I bring a kids-fitness party down in price?
Keep the guest list at or just under the included count, because that is the line where per-head charges start. After that: ask whether you can bring your own food and cake rather than buying the catered option, keep favors simple, and skip the theme upgrade. Ask each location for the itemised lines and the all-in figure, so you can see which add-on is worth trading and which is already in the base.

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