How this calculator works
This calculator splits a total wedding budget into a suggested category breakdown using percentages that are widely repeated across wedding-planning guides — venue and catering typically the largest share, followed by photography, attire, flowers, music and several smaller categories. A contingency reserve is set aside first, and the category percentages are applied to what remains, so every category plus the reserve adds back up to exactly your total budget.
These percentages are rough averages, not prescriptions. Actual wedding spending varies enormously by region, guest count, season and personal priorities — a wedding with a modest venue but an elaborate photography package will look nothing like these defaults, and that is completely normal. Use the breakdown as a starting point to reallocate around what matters most to you.
The formula
Contingency reserve = total budget × contingency %Core budget = total budget − contingency reserveEach category amount = core budget × category %Cost per guest = total budget ÷ guest countThe category percentages used here (venue & catering ~45%, photography & videography ~11%, attire & beauty ~8%, flowers & décor ~8%, music & entertainment ~8%, rings ~3%, stationery ~3%, favors ~2%, transportation ~2%, planner/officiant/misc ~10%) are typical, widely cited industry-style splits of the core budget and sum to 100% of it by construction.
Worked example: $30,000 budget, 100 guests, 8% contingency
- Contingency reserve = 30,000 × 0.08 = $2,400; core budget = 30,000 − 2,400 = $27,600.
- Venue & catering (45% of core) = 27,600 × 0.45 = $12,420.
- Photography & videography (11% of core) = 27,600 × 0.11 = $3,036.
- Cost per guest = 30,000 ÷ 100 = $300, regardless of how the budget is split across categories.
Frequently asked questions
Where do these category percentages come from?
They reflect commonly cited averages repeated across wedding-planning resources, not a single authoritative study. Real spending varies hugely by region, venue type, guest count and priorities, so treat these as a reasonable starting split to adjust, not a target to hit exactly.
Why is venue and catering such a large share?
For most weddings, the venue rental and per-guest catering cost scale directly with guest count and are usually the single largest line item, which is why planning guides commonly place it around 40-50% of the core budget.
How much contingency should I set aside?
5-10% of the total budget is a commonly suggested range to cover price increases, last-minute additions or vendor surprises. Weddings with more moving parts (multiple venues, destination travel, many vendors) may warrant a reserve toward the higher end.
Does cost per guest change if I reallocate between categories?
No — cost per guest is simply the total budget divided by guest count, independent of how that budget is split across categories. It's a useful figure for comparing against a per-person catering or venue quote.
What if my priorities don't match these percentages at all?
That's expected and completely fine — these are averages across many different weddings, not a rule for any individual one. Increase the categories that matter most to you and decrease others, keeping the total at or under your overall budget.