One transparent model powers every page and the live calculator. No black box — here's the whole thing.
Every estimate is the sum of 15 spending categories, where each category has a fixed cost plus a per-guest cost, scaled by four multipliers — metro, style tier, day of week and season — with a 15% service charge, tax and tip applied to the food-and-bar block.
category cost = (fixed + perGuest × guests) × metro × tier × day × season
The baseline — a classic, full-service, 120-guest Saturday wedding at national-average prices — is calibrated to land near $35,500 all-in (~$290 per guest). That sits between the figures reported by the major industry studies:
Category weights (venue ≈ a quarter of spend, catering + bar ≈ a quarter, photo/video ≈ a tenth, and so on) follow the category breakdowns those studies publish.
Each metro carries a single cost-of-living multiplier versus the national average (1.00) — from ×0.72 in rural areas to ×1.90 in Manhattan. They're set from the metro-level averages published in the studies above and cross-checked against regional venue and catering price lists. See every metro compared →
| Tier | Multiplier | What it means |
|---|---|---|
| Backyard / DIY | ×0.60 | Backyard or park, potluck-leaning, minimal vendors. |
| Simple | ×0.80 | Restaurant or small venue, short vendor list. |
| Classic | ×1.00 | Full venue, catering, photographer, DJ, florals — the standard package. |
| Upscale | ×1.42 | Sought-after venue, plated dinner, premium vendors, videographer. |
| Luxury | ×2.05 | Designer everything, band, top-tier venue, full production. |
Destination pages use the same model with two differences: a smaller default guest count (70–80, matching how destination weddings actually run) and a locale multiplier calibrated to published destination-wedding averages. The figures cover the celebration only — venue or resort package, food, bar and vendors. Flights and accommodation are excluded, and guests customarily pay their own travel. See every destination compared →
Fri/Sun runs ~8% below Saturday and weekdays ~18% below; off-season (Nov–Apr) trims a further ~12%. These reflect standard venue and vendor discounting for lower-demand dates.
Real quotes scatter. We show ×0.82 to ×1.28 around the central estimate to be honest about that spread rather than pretend to false precision.
Model last reviewed: 2026. Found a number that looks off for your market? The model lives in one file — it gets fixed in one place.