🇬🇧 GB · figures as of 2026-06
Growing Family

Wedding Cost Calculator

Get an itemized budget estimate based on your guest count, region, and style — with benchmarks from The Knot's 2024 survey of 12,000+ couples. Customize each category.

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Estimated Wedding Budget

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Full Budget Breakdown

Guest count is the number that moves everything

Most of a wedding budget is per-head. Catering, drinks, place settings, favours and often the venue itself all scale directly with attendance, which makes the guest list the single most powerful control you have.

Cutting twenty guests typically saves more than negotiating every supplier on the list, and it does so without compromising anything about the day itself. If the total above is higher than you want, the guest count is the first place to look and the last place most people look.

Why the average is a bad target

Published wedding averages are pulled upwards by a long tail of very expensive weddings, so the mean sits well above what a typical couple spends. Worse, the figures often come from suppliers and planning sites with an interest in a high number.

It is also the wrong question. The useful target is what you can pay for without borrowing, not what other people spent.

The costs that arrive late

Budgets overrun in predictable places, and almost all of them are things quoted separately from the headline package:

  • Service charge and tax on catering and venue, which can add 20% or more and is often shown outside the quoted price.
  • Supplier meals, where photographers, videographers and the band are usually fed at close to guest rates.
  • Overtime, when the day runs long — hourly rates after the contracted finish are steep.
  • Alterations, rarely included in the dress or suit price and frequently several hundred.
  • Stationery, postage, gifts and transport, individually small and collectively not.

A contingency of 5–10% is not pessimism; it is the observed pattern.

Where the money is best spent

Couples asked afterwards tend to converge on the same answer: what people remember is the food, the drink and the music, plus whatever record exists of the day. Things noticed briefly or not at all — elaborate stationery, favours, extensive floral arrangements — are where budget is most easily reduced without anyone experiencing a worse day.

Timing is the other lever. The same venue and the same suppliers routinely cost substantially less on a Friday, in winter, or outside peak season, which buys a better version of everything else for the same total.

Data sources & methodology: Base estimates from The Knot Real Weddings Study 2024 (12,000+ couples). Regional multipliers derived from WeddingWire 2024 regional data. Style multipliers: budget 0.55×, moderate 1.0×, upscale 1.65×, luxury 2.8×. Off-peak/Sunday discounts: 15–30%. Results are estimates. Disclaimer →

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What changes in the UK

  • You must give notice at a register office at least 28 days before the ceremony, and both parties must have lived in the district. Venue fees and registrar attendance are charged separately from that notice fee.
  • The UK taxes individuals, not couples, so marriage changes little — the exception is Marriage Allowance, which lets a non-taxpayer transfer part of their personal allowance to a basic-rate partner.
  • Marriage revokes an existing will unless it was made in contemplation of that marriage. Updating the will is a small cost that is almost universally forgotten in the wedding budget.
  • Spouses transfer assets between themselves free of capital gains tax and inheritance tax, and an unused inheritance tax nil-rate band passes to the survivor — the real financial effect of marrying is at the estate, not the wedding.

Data reference (United Kingdom): Bridebook/Hitched 2025 (avg UK wedding ~£20,600) · figures as of 2026-06 · Compiled from official public sources via AI-assisted research, current to 2025-26; latest available data, not individually verified - general information, not advice.. See our methodology for how every figure is sourced and dated.

🔒 Calculations run 100% in your browser — we never see your numbers 📊 Built on primary-source data (see references above) 🔄 Reviewed 2026 · methodology · disclaimer