How Many Balloons Do You Need for a Garland or Arch?

Building a DIY balloon garland or arch? Here's roughly how many balloons to buy — no maths degree required.

Balloons per metre of garland

A lush, organic-style garland mixes sizes. As a rough guide, per 1 metre: - ~10–12 large balloons (28cm/11") - ~14–16 medium balloons (12cm/5") - a handful of small accents (5" and mini foils)

So a 2-metre garland ≈ 55–70 balloons total across sizes for a full, gap-free look.

Balloon arch (freestanding, ~2m)

A standard 2m freestanding arch typically uses 100–120 balloons in mixed sizes for a premium finish, or ~60–80 for a lighter look.

Your shopping list

Tips for a pro finish

  • Mix 3–4 colours plus a metallic for depth.
  • Cluster in groups of 4 ("quads"), then attach to balloon decorating strip.
  • Air-fill garland balloons (no helium needed) — they last for days.

FAQ

How many balloons for a 3m garland? Roughly 80–100 across mixed sizes. Do garland balloons need helium? No — air-filled balloons on a strip last much longer and hold shape. What size balloons are best for a garland? A mix of 11", 5" and a few mini foils gives the fullest look.

👉 Start your garland with 5" latex balloons and accessories.

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