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Balloon Arch Calculator

A balloon arch calculator estimates how many balloons you need for an arch or garland based on the width, height, balloon size, setup style, and desired fullness. Use it to plan main balloons, backup balloons, color splits, support gear, and setup time before you buy supplies.

Supply list readyColor split estimateSetup time included

Arch Details

Balloon Supply Estimate

8 ft wide x 8 ft high · Classic freestanding arch

Linear feet

19.38 ft

Main balloons

117

Backup balloons

18

Build time

1 hr 11 min

Materials

Main balloons

117

Backup balloons

18

Accent balloons

0

Support

Balloon arch frame or weighted bases

Pump

Electric balloon pump

Color Split

Use this as a starting point, then adjust for your design.

Color 139 balloons
Color 239 balloons
Color 339 balloons

How to use this calculator

  1. 1

    Enter the arch dimensions

    Measure the target width and height in feet. Use the visible outside dimensions of the arch or garland area.

  2. 2

    Choose the setup style

    Select a freestanding arch, organic garland, half arch, or framed column setup so the calculator can estimate the right linear footage.

  3. 3

    Pick balloon size and fullness

    Choose the main balloon size and whether you want light, standard, or lush coverage.

  4. 4

    Review the supply list

    Use the recommended balloon count, backup balloons, color split, support gear, and build time to shop and schedule setup.

Balloon Arch FAQ

How many balloons do I need for a balloon arch?

Most balloon arches need 5 to 7 standard balloons per linear foot. The exact count depends on the balloon size, arch shape, and how full you want the garland to look.

How many extra balloons should I buy?

Buy at least 15 percent extra balloons for popping, color balancing, and last-minute gaps. Organic garlands often need additional accent balloons in smaller or larger sizes.

What size balloons are best for a balloon arch?

Twelve-inch balloons are the easiest standard choice for a full arch. Use 5-inch balloons for fillers, 10-inch balloons for dense garlands, and 18-inch balloons as oversized accents.

How long does a balloon arch take to make?

Plan about 30 to 45 minutes for a small arch and 90 minutes or more for a large organic garland. An electric pump is strongly recommended for anything over about 60 balloons.

Do I need a frame for a balloon arch?

Freestanding arches usually need a frame or weighted bases. Organic garlands can often use a flexible garland strip with hooks, fishing line, or a backdrop stand.

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