Wedding Budget Calculator Formula

Understand the math behind the wedding budget calculator. Each variable explained with a worked example.

Use the Wedding Budget Calculator

Formulas Used

Venue & Catering (50%)

venue_catering = total_budget * 0.50

Photography & Video (10%)

photography = total_budget * 0.10

Flowers & Decor (8%)

flowers_decor = total_budget * 0.08

Music & Entertainment (8%)

music = total_budget * 0.08

Attire & Beauty (7%)

attire = total_budget * 0.07

Stationery, Favors, Misc (17%)

other = total_budget * 0.17

Cost Per Guest

per_guest = total_budget / guest_count

Variables

VariableDescriptionDefault
total_budgetTotal Wedding Budget(USD)30000
guest_countGuest Count120

How It Works

How to Allocate a Wedding Budget

Industry guidelines suggest splitting the budget across major categories.

Typical Allocation

  • Venue & Catering: 50%
  • Photography & Video: 10%
  • Flowers & Decor: 8%
  • Music & Entertainment: 8%
  • Attire & Beauty: 7%
  • Everything else: 17% (invitations, favors, cake, officiant, tips, etc.)

    • Worked Example

    $30,000 wedding budget for 120 guests.

    total_budget = 30000guest_count = 120
    1. 01Venue & Catering = $30,000 x 50% = $15,000
    2. 02Photography = $30,000 x 10% = $3,000
    3. 03Flowers = $30,000 x 8% = $2,400
    4. 04Music = $30,000 x 8% = $2,400
    5. 05Attire = $30,000 x 7% = $2,100
    6. 06Other = $30,000 x 17% = $5,100
    7. 07Per guest = $30,000 / 120 = $250

    Frequently Asked Questions

    What is the average wedding cost?

    The US average is approximately $30,000-$35,000. However, costs vary dramatically by location, with major cities often double the national average.

    How do I reduce wedding costs?

    Choose an off-peak date/day, limit the guest list, use in-season flowers, skip the DJ for a curated playlist, and negotiate with vendors.

    Should I include a contingency buffer?

    Yes, reserve 5-10% of your budget for unexpected costs. Last-minute changes and tips can add up quickly.

    Ready to run the numbers?

    Open Wedding Budget Calculator