Free Online Balloon Calculator
Balloon & Helium Calculator For Decorators
Estimate balloons, helium volume, materials, and build time for arches, garlands, bouquets, or ceiling fills.
Your Estimate
Total Balloons
—Helium (if used)
—ft³ | L • tank: —
Estimated Materials
—Estimated Build Time
—includes setup only
Bags to Buy
- —
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Balloon Calculator FAQs
How many balloons do I need for an arch?
For a full look, use about 5–6 balloons per linear foot of arch. For a lighter look, plan around 3–4 per foot.
How much helium do I need?
An 11-inch latex balloon requires roughly 0.5 cubic feet (14 L) of helium. Multiply by your total balloon count for an estimate.
What’s the best balloon size for garlands?
Mix multiple sizes — typically 5", 11", and 18" — to create a luxe, layered look.
Can I DIY, or should I book setup?
DIY is fine for small builds. For large arches or premium installs, booking our team ensures symmetry and long-lasting results.
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