Plan the balloons before the party, not halfway through inflating them.
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About this tool
How it works
The calculator approximates the arch as half an ellipse, then applies balloon size and packing density. Real totals vary with inflation, overlap, clusters, and frame shape.
Example
A 3 m wide, 2.4 m high standard arch using 28 cm balloons needs a practical estimate plus a spare allowance.
Private by default
The calculation or transformation happens in this browser. There is no account, and the values you enter are not sent to Naughty Bear Labs.