Party Decoration Calculator

Plan for 3-5 latex balloons per guest for a standard decorated party. A 30-person party needs about 90-150 balloons. Add a balloon arch (100-150 balloons) for a wow factor. For helium balloons, plan 1-2 per guest as they cost more. Buy 10% extra to account for popping during setup.

Budget decorations (dollar store basics) cost $15-40 for a 20-person party. Mid-range themed decorations run $40-100. Premium or extravagant setups with balloon arches, backdrops, and custom pieces can cost $100-250+. The biggest cost drivers are helium balloons, photo backdrops, and custom banners.

Essential decorations: balloons (latex and a few helium), a birthday banner, tablecloths, streamers, and party hats. Nice to have: centerpieces, a photo backdrop, garlands, and themed plates/cups. Skip door curtains and place cards for kids parties — they will not notice or care.

Use balloon weights or tie balloons to chairs (helium balloons fly away in wind). Anchor tablecloths with clips. Skip hanging decorations and use ground-level items: balloon columns, yard signs, a welcome sign, and table centerpieces. Buy 30% more balloons than needed — outdoor conditions pop more.

A standard single-door balloon arch needs 100-150 balloons. A large entrance arch needs 200-300 balloons. A half arch or garland needs 60-80 balloons. Use a mix of sizes (5-inch, 10-inch, 12-inch) for a professional look. Budget about $15-25 for a DIY arch kit plus balloons from a dollar store.