150-Person Wedding Cost Calculator (2026)

A standard Saturday summer wedding for 150 guests averages around $47,250, ranging from $40,163 to $54,337. This is above the national median, placing the total in the upper-middle range of wedding spending.

Yes. 150 guests is considered a large wedding by most industry standards. Many venues, caterers, and rental companies have tiered pricing for events over 100 to 120 guests. Couples often find that 150 person weddings trigger premium service tiers.

Catering and bar service for 150 guests typically runs between $12,000 and $22,000 at $235 per person variable cost basis. Full open bar service for 150 people is one of the largest single expenses in this guest range.

Most caterers recommend one server per 10 to 15 guests for a plated reception, meaning 10 to 15 staff for 150 guests. Buffet service requires fewer staff. Labor costs are typically included in the catering quote but worth confirming explicitly.

Floral costs for a 150 person wedding typically run $3,000 to $7,000 for full centerpiece and ceremony decor. This is included in the fixed cost estimate of $12,000. Couples wanting elaborate installations or statement ceremony arches can push floral costs significantly higher.

It depends heavily on your state. In Mississippi, a 100-person wedding costs roughly $24,500 ($8,000 fixed + $165/guest). In New York, that same wedding runs about $69,500 ($28,000 fixed + $415/guest). The US national average is around $35,500. Use the state dropdown above to see your specific estimate.

The national average cost per wedding guest is approximately $235, according to The Knot’s 2025 Real Weddings Study. This covers catering, bar, place settings, favors, and per-head stationery. In high-cost states like New York or Massachusetts, expect $385–$415 per guest. Budget-friendly states like Mississippi or Arkansas can be as low as $165–$170 per guest.

Start with the total you can realistically spend. Then use this calculator to see how many guests that budget supports. The formula is: Total = Fixed Costs + (Per-Guest Cost × Guest Count). Because per-guest costs scale instantly, the absolute best way to protect your budget is to set a strict guest limit before you send save-the-dates. (Tip: iDoTogether lets you set a hard cap on your guest list so you literally cannot over-invite).

Yes - cutting your guest list is the single most effective way to reduce wedding costs. Unlike fixed costs (photographer, DJ, officiant), per-guest expenses scale linearly. At the national average, every guest you remove saves $235. Cutting 20 guests saves nearly $4,700. The key is knowing who’s actually coming - which is why confirmed RSVPs matter more than estimates.

To stay under $20,000, focus on three levers: (1) Keep your guest list under 80 people - this is the biggest cost driver. (2) Choose a budget-friendly state or venue type: think backyard, public parks, or off-peak dates (Fridays, Sundays, winter). (3) Choose buffet service over plated to save up to 12% on per-guest catering costs. At $165/guest with $8,000 in fixed costs, 70 guests lands at $19,550.

Off-peak timing can significantly reduce costs. A Friday wedding typically saves 8% compared to Saturday, Sunday saves 10%, and a weekday wedding saves up to 18%. Seasonally, fall weddings save about 5% and winter weddings save up to 12% vs. peak summer rates. Combine a Friday in winter and you could save up to 30% on both fixed and per-guest costs - that’s over $10,000 on a $35,000 wedding.

The most commonly forgotten costs include tips and gratuities (15–20% of total vendor fees), attire alterations ($300–$800), vendor meals ($150–$400), overtime charges ($500–$1,500), beauty and hair trial runs ($200–$500), guest transportation ($500–$2,000), and thank-you card postage ($100–$300). Use the Hidden Costs Checklist above to add these to your estimate and see the true total.