The Wedding Catering Cost Calculator turns a caterer's per-guest quote into the number you will actually pay. Enter your guest count and the quoted cost per guest, add your local tax rate and gratuity or service percentage, plus any flat additional fees, and it returns the base cost, the tax amount, the gratuity amount, the total, and the true all-in cost per guest.
How It Works
Catering add-ons in this calculator are each charged on the base cost — the standard way quotes are built — and then summed:
That last line is the one to compare between caterers: two quotes at the same per-head rate can differ by thousands once percentages and flat fees land, and the all-in figure exposes it instantly.
Input Parameters
| Input | Description | |---|---| | Guest count | Everyone being catered, adults and children | | Cost per guest | The caterer's quoted per-person price (food and beverage as quoted) | | Tax rate (%) | Local sales tax applied to the base | | Gratuity rate (%) | Service charge or gratuity percentage applied to the base | | Additional fees | Flat charges: rentals, cake cutting, corkage, delivery |
Worked Example
150 guests at a combined 75 plated dinner + 500 of additional fees (rentals and cake cutting):
- Base = 150 × 15,750**
- Tax = 1,260**
- Gratuity = 3,150**
- Total = 1,260 + 500 = $20,660
- All-in cost per guest = 137.73**
The headline "137.73 a head — a 31% uplift. Budgeting from the quoted rate alone is the single most common cause of catering budget shock, which is exactly what the tax, gratuity, and fees fields exist to prevent.
Building the Per-Guest Figure
What you fold into "cost per guest" depends on your quote. Plated dinners carry the highest per-head prices because of staffing; family-style sits in the middle; buffets are usually cheapest per head, though caterers prepare extra volume. A full open bar typically adds a substantial per-person amount over beer and wine only. If your caterer quotes food and alcohol separately, add them together before entering, as in the example. Vendor meals for your photographer, band, and planner are usually charged at a reduced rate — include them in the guest count at an averaged rate or add them as a flat fee.
One terminology trap: a service charge (often 18 to 25%) is usually a mandatory house fee, not a tip for staff, and it may or may not be taxed in your area. Enter whatever percentage your contract actually applies in the gratuity field — the calculator's job is the arithmetic; the contract decides what the percentage represents.
Limitations
Percentages are applied to the base cost only; if your caterer taxes the service charge as well, or compounds charges differently, your invoice will differ slightly — add the difference to additional fees to reconcile. The calculator does not estimate the per-guest quote itself, model per-item rentals in detail, or handle deposits and payment schedules. Get the quote first, then stress-test it here.
Frequently Asked Questions
Should gratuity be calculated before or after tax?
Common practice — and this calculator's model — applies both the tax and the gratuity to the base food-and-beverage amount, not to each other. If your caterer's contract states gratuity is charged on the taxed subtotal, the difference on a typical bill is small; adjust the gratuity percentage slightly to match their total.
How many guests should I budget for?
Budget on your confirmed-ish headcount, then rerun with 10% fewer and 10% more guests to see the range. Because tax and gratuity scale with the base, every ten guests in the example above moves the total by about $1,377 — the fastest lever on the whole catering budget is the guest list itself.
What additional fees do couples most often forget?
Cake-cutting fees (3 per slice for an outside bakery's cake), corkage on self-supplied wine, rental delivery and pickup charges, vendor meals, and tasting fees charged before signing. None are large alone; together they are routinely 1,500 — which is why the calculator gives them their own field.