How this calculator works
A wedding budget is more useful when it starts with a number you can actually spend, not a number you hope will work out. That total might come from savings, family contributions, or a mix of both. Once the ceiling is set, the work is to divide it so the big decisions — the room, the meal, the photographer — have a place, and so the smaller lines are not forgotten until they arrive as surprises.
Guest count is usually the strongest cost driver. Catering, rentals, invitations, favors, and even the size of the room often move with the headcount. The cost-per-guest figure in this calculator is a simple cross-check: your total divided by the number of guests. It is not a vendor quote. If a caterer’s per-person package already uses most of that figure, the rest of the day will have to be leaner, or the guest list or the total will have to change.
The percentages in the form are a planning sketch, not a report on what weddings cost. Prices vary by city, season, and the kind of day you are hosting. A hotel package that folds the room, tables, and meal into one contract will look different from a backyard ceremony with rented chairs and a restaurant dinner. Published surveys of couples often find that the venue and the food together take the largest share, frequently around two-fifths to one-half of the total. This calculator starts with 25% for venue and rentals and 20% for food and drink for that reason. Those are starting weights you can edit. They are not a claim about a national average, and they are not a promise that vendors in your area will land on those figures.
Photography and video are often booked earlier than other vendors and are hard to change later, which is why they get a line of their own, starting at 12%. Attire and beauty, flowers and decor, and music make up the next block. Stationery, the ceremony fee and officiant, transportation, cake, rings, and favors are smaller lines, but together they are easy to underestimate. If you already have rings, or a friend is officiating, turn those rows off. The money is then left unallocated unless you choose “Scale to 100%,” which redistributes the remaining categories in the same proportions.
A contingency line of 5% is included on purpose. Service charges, sales tax, vendor meals, overtime, gratuities, alterations, and delivery fees are often missing from early estimates. If you already build those into each category, you can lower or remove the buffer. If you do not, leaving it in is usually the more realistic choice.
Enter your total and your expected guest count, then adjust any percentage. The dollar amounts update as you type, and they are rounded to the cent so the rows add up exactly. If the percentages go over 100%, the extra is shown as an amount over budget. If they add up to less, the leftover is a reserve you can keep. Cost per guest appears for each category and for the whole budget.
What this tool does not do matters as much as what it does. It does not know local prices, it does not collect quotes, and it does not track what you have already paid. Those jobs belong in a worksheet you can reopen as contracts are signed. Your numbers stay in this browser; nothing is uploaded or stored on a server.