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How Many Balloons Do I Need for a Birthday Party? (By Guest Count)
How many balloons a birthday party needs by guest count, from 10 to 50 guests, plus garland and centrepiece counts.
How Many Balloons Do I Need for a Birthday Party? (By Guest Count)
Quick answer: Plan 2–4 balloons per guest for a birthday party, or one 10-foot balloon garland per 20–30 guests. A 10-guest party needs 40–60 balloons; a 30-guest party needs 100–150, plus a garland.
Key takeaways
- Budget 2–4 balloons per guest for loose balloons.
- One 10-foot garland decorates 20–30 guests.
- 10 guests = 40–60 balloons; 30 guests = 100–150.
- Add 10% spare for popping.
How many balloons do I need for a birthday party?
Plan 2–4 balloons per guest for loose balloons and table clusters, plus one 10-foot balloon garland for every 20–30 guests as the main decoration. For 20 guests that means roughly 40–80 loose balloons plus a 100–120 balloon garland.
Balloon count by guest number
| Guests | Loose balloons | Garland | Total to buy |
|---|---|---|---|
| 10 | 20–40 | 6 ft (60–72) | ~90–110 |
| 20 | 40–80 | 10 ft (100–120) | ~150–210 |
| 30 | 60–120 | 10–12 ft (120–145) | ~190–280 |
| 50 | 100–200 | 2 garlands (220–240) | ~330–450 |
How many balloons for a balloon garland?
A garland uses 6–7 balloons per foot for a standard look and 10–12 per foot for a full organic one. A 10-foot garland therefore needs 60–120 balloons depending on density.
How many balloons for a table centrepiece?
Use 5–7 balloons per table in a small cluster, or 3–5 if you are also using flowers. For 8 tables of 8, that is 40–56 balloons for centrepieces alone.
Air or helium for a birthday party?
Use air for garlands, arches, columns and table clusters, and helium only for balloons that must float. Air lasts 2–4 weeks; helium latex floats just 8–12 hours and costs $1–2 per balloon.
Frequently asked questions
How many balloons for a party of 20?
Plan about 40–80 loose balloons plus a 10-foot garland of 100–120 balloons, so roughly 150–210 balloons in total. Add 10% spare for popping and over-inflation.
How many balloons do I need for 30 guests?
For 30 guests use 60–120 loose balloons plus a 10–12 foot garland of 120–145 balloons — about 190–280 balloons in total. One garland is enough for a room of that size.
How many balloons per person for a party?
Plan 2–4 balloons per guest for loose balloons and table clusters, then add a garland as the main feature. Children’s parties tend to sit at the higher end because balloons are also used as favours and games.
Shop balloons: browse our balloons and balloon arch kits, or read how many balloons a garland needs.
