WeddingTally

How much does a wedding cost for 100 guests?

About $29,200 in the United States: 100 guests at the published average of $292 per guest (The Knot 2026 Real Weddings Study, press release 2026-02-18, read 2026-09-19). At 0.6 x the average that is $17,520, at 1.6 x it is $46,720. Below: the same 100 guests in the UK, Canada and Australia, where the money goes by category, and what a $20,000 budget means per guest.

Open the wedding budget calculator

How much does a 100-guest wedding cost in the United States?

Total = guests x cost per guest. The wedding budget calculator starts from the country’s published average per guest and offers two stated multipliers, below average (0.6 x) and above average (1.6 x); they are assumptions, not survey brackets, and a venue quote per head replaces them. At the average, 100 guests come to $29,200, 14 % below the national average of $34,000 (The Knot 2026 Real Weddings Study, press release 2026-02-18, read 2026-09-19), because the average wedding has 117 guests.

100 guests in the United States at each spending level (cost per guest x 100)
Spending levelCost per guestTotal for 100 guests
Below average (0.6 x the average)$175$17,520
Average (1 x the average)$292$29,200
Above average (1.6 x the average)$467$46,720

What do 100 guests cost in the UK, Canada and Australia?

Each country has its own published average per guest, so the same list gives a different total, in its own currency; the last column compares it with that country’s average wedding, which has a different guest count in each. Switch country in the calculator to see the source under the field.

100 guests at each country's published average per guest, in local currency
CountryAverage per guestTotal for 100 guestsAverage wedding (guests)vs the average wedding
United States$292$29,200$34,000 (117)14 % below the national average
United Kingdom£278£27,800£20,604 (74)35 % above the national average
CanadaC$191C$19,100C$29,450 (154)35 % below the national average
AustraliaA$450A$45,000A$38,252 (85)18 % above the national average

Where does the money go for 100 guests?

The calculator splits the total with a published table of category shares (WeddingWire Newlywed Report, "Wedding Budget Breakdown", percentages of the total, read 2026-09-19). For 100 guests at the United States average the biggest lines are food and drink $8,176 (28 %), venue $5,840 (20 %), attire, hair and make-up $2,628 (9 %); the per-guest column is the line divided by 100. The budget breakdown guide compares the tables of the four countries.

$29,200 for 100 guests in the United States, split by the published category shares
CategoryShareAmountPer guest
Venue20 %$5,840$58
Food and drink28 %$8,176$82
Photography6 %$1,752$18
Videography6 %$1,752$18
Music and entertainment7 %$2,044$20
Flowers and decor8 %$2,336$23
Attire, hair and make-up9 %$2,628$26
Rings2 %$584$6
Invitations and stationery3 %$876$9
Cake2 %$584$6
Transport2 %$584$6
Favours and gifts2 %$584$6
Planner3 %$876$9
Ceremony and officiant2 %$584$6

Is $20,000 enough for 100 guests?

$20,000 / 100 = $200 per guest, 32 % below the national average. Split with the same shares, it leaves $4,000 for the venue ($40 per guest) and $5,600 for food and drink ($56 per guest). That is the number to put next to the per-head quotes you collect: if a venue and caterer fit inside it, the budget holds; if not, the list gets shorter ($20,000 covers 68 guests at the average per guest) or another line gives way. The cost per guest calculator does this for any budget and guest count.

Is 100 guests more than average?

The published average guest counts are United States 117, United Kingdom 74, Canada 154, Australia 85, so 100 sits near the middle. A headcount of 100 is not 100 invitations: not everyone says yes, so the list you send is longer. The how many guests to invite guide works back from the headcount to the invitations at a published response rate, and the wedding guest list keeps the count as answers come in.

From the average to a quote

A national average mixes cities and villages, hotels and back gardens, Saturdays in June and Tuesdays in November; it is a bearing, not a price. Once you have a per-head quote from a venue or a caterer, type it as the cost per guest in the budget calculator: the total and every category follow, and the comparison with the average tells you where you stand. The result is a planning estimate, not financial advice.

Sources

Frequently asked questions

How much does a wedding cost for 100 guests?
About $29,200 at the United States average of $292 per guest (The Knot 2026 Real Weddings Study, press release 2026-02-18, read 2026-09-19); $17,520 at 0.6 x the average and $46,720 at 1.6 x. The venue, the city and the day of the week move the real figure a lot; a per-head quote replaces the average in the calculator.
Is $20,000 a realistic wedding budget for 100 guests?
It is $200 per guest, 32 % below the national average in the United States. With the published category shares it leaves about $4,000 for the venue and $5,600 for food and drink, so it works with a venue and caterer priced below the average, a weekday or off-season date, or a shorter list (at the average per guest the same budget covers 68 guests).
How much does a wedding cost per person?
$292 per guest is the United States published average (The Knot 2026 Real Weddings Study, press release 2026-02-18, read 2026-09-19). United Kingdom £278, Canada C$191, Australia A$450, each from its own published source. Your own figure is your total divided by your guests, and it includes whatever your total includes.
What is the average wedding cost in the UK for 100 guests?
£27,800 at the published UK average of £278 per guest (Bridebook UK Wedding Report 2026, read 2026-09-19). The UK average wedding is £20,604 for 74 guests, so 100 guests is 35 % above the national average.
Is 100 guests a big wedding?
It is close to the published averages: United States 117, United Kingdom 74, Canada 154, Australia 85. What matters more is what the room holds and how many of the people you invite will come; the guest list guide works back from 100 guests to the invitations.
What does the estimate leave out?
Anything not in the published category table: the honeymoon, an engagement ring, gifts for the wedding party beyond favours, and any line your publisher folded into another. It is a planning estimate from national averages, not financial advice and not a quote; the calculator lets you overwrite every share and the cost per guest.

Last updated 2026-09-21. Figures are planning estimates built from published averages, each with its source and year: your own quotes and your guest list replace them.