Wedding Budget Calculator
Break a wedding budget down by category and check the cost per guest.
Last updated · View algorithm, constants and default inputs (JSON)
About this calculator
Enter a total budget, guest count and the percentage assigned to each category. The calculator multiplies each percentage by the budget; category percentages can sum below or above 100%, and the numeric difference shows over-allocation (positive) or unallocated budget (negative). This is a planning worksheet, not a typical-cost benchmark.
Worked example
calculated with the default values below
Total budget 30,000 USD · Guest count 120 · Venue and catering 45 % · Photography and video 12 % · Attire and beauty 8 % · Flowers and décor 10 % · Music and entertainment 8 % · Stationery, transport, rings, gifts 12 % · Contingency 5 % Venue and catering 13,500 USD · Photography and video 3,600 USD · Attire and beauty 2,400 USD · Flowers and décor 3,000 USD · Music 2,400 USD · Other costs 3,600 USD · Contingency 1,500 USD · Cost per guest 250 USD · Allocated minus budget 0 USD
General background references
Disclaimer
These calculators give general estimates. Sizing, pricing, availability and standards vary by brand, retailer and country, so treat the output as a starting point and confirm it against the seller's or authority's own figures.
Implementation source
This record describes the implementation used by this page. It is not independent validation. External references, when available, support only the stated formula or definition; estimates and custom rules retain their own assumptions.
Formula and variables
C_i = B × p_i ÷ 100; A = Σ C_i
- B
- Total budget
- p_i
- Category percentage
- C_i
- Category cost
- A
- Allocated total
- G
- Guests
Each category amount = total budget × entered percentage; allocated total is the sum of seven categories. Cost per guest = budget ÷ guest count. Budget difference = allocated total − budget (positive means over-allocated). Amounts are USD.
Frequently asked questions
How do I read the budget difference?
The calculator sums each category percentage times the total budget. The difference is allocated total minus budget: positive means the percentages allocate more than the budget; negative means some budget remains unallocated. Percentages do not have to sum to 100%.