Helibox planning tools

How much can your balloons lift?

Estimate the combined lift of a balloon display in grams and kilograms. Enter your balloon quantities, then optionally deduct the weight of ribbons and attached decorations.

Your balloon quantities

Enter whole numbers from 0 to 1,000,000. Leave unused types at zero.

Enter the total extra weight for the whole display, such as ribbons and decorations. Leave this at zero to view the reference lift alone.

What balloon lift means

A helium-filled balloon can create an upward force. These reference figures express an approximate lifting effect as an equivalent mass in grams, making it easier to compare different balloon types when planning a decoration.

Adding the figures gives a starting estimate for the group. The finished display can behave differently because balloon materials, sizes and filling levels vary. Check your chosen balloon manufacturer's information and test the actual combination.

Allow for everything you attach

Ribbons, strings, tassels, confetti and decorative pieces add weight to an arrangement. Weigh the extra materials together and enter that total in the attached-weight box.

The calculator subtracts that amount from the combined reference lift. A result of zero means the extra weight reaches or exceeds the estimate; it does not confirm that a display is securely anchored.

Use the result to plan a test

  1. Choose the balloon sizes and materials in your proposed display.
  2. Enter the quantity of each listed type and weigh any attached decorations.
  3. Make a small test arrangement using the actual balloons and materials.
  4. Use suitable balloon weights and consider movement, handling and the conditions at the venue.

For an unlisted balloon, a complex arrangement or a display with heavy decorations, contact us with the balloon specification and your plan. A reference calculator cannot confirm that a particular object will float or that a fixing will hold it.

Balloon lift questions

Why do two similar-looking balloons have different lift figures?

Shape, material weight and the amount of gas held all contribute to the finished result. A foil balloon, bubble balloon and latex balloon should not be treated as interchangeable just because their stated sizes are similar.

Is the result the exact anchor weight I need?

No. The estimate is a useful reference for planning, but it is not a tested anchoring specification. Allow for the finished arrangement and venue conditions, and verify that the chosen weights hold it securely.

Can I add several types together?

Yes. The calculator adds the reference lift of every quantity you enter. Attached materials are then deducted once from the total.

Will the same balloons always give the same result?

No. Brand, inflation size and the condition of the display affect the result. Test the actual balloons you intend to use and do not rely on the estimate alone.

Reference figures

These are the approximate planning values used by this calculator. They are guides rather than guarantees for every brand or shape.

View the balloon reference table
Gas volume and lift per balloon
Balloon typeHelium volumeEstimated lift
9 inch Latex Balloons0.25 ft³6 g
11 inch Latex Balloons0.5 ft³10 g
24 inch Round Latex Balloons5 ft³120 g
3 foot Round Latex Balloons15 ft³340 g
4 foot Chloroprene34 ft³770 g
5.5 foot Chloroprene87 ft³2,130 g
8 foot Chloroprene267 ft³7,000 g
22 inch Single Bubble1 ft³14 g
24 inch Double Bubble1.25 ft³7 g
18 inch Foil Rounds0.5 ft³2 g
36 inch Foil Rounds4 ft³30 g
38" Foil Number1.75 ft³10 g