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Helium Balloon Capacity & Float Times

The listed average inflation sizes, flying times, and numbers of balloons per helium tank are conservative averages. Actual flying times may vary depending on temperature and atmospheric conditions.

Latex & Cloudbuster Balloon Helium Chart

Balloon Type Inflated Diameter Lift Ability Gas Capacity Avg. # per 242ft3 tank Avg. Float Time*
5" (13cm) Round 5" (13cm) N/A 0.06 cu ft (.002m3) N/A N/A
9" (23cm) Round 9" (23cm) 0.2 oz. (6g) 0.25 cu ft (.007m3) 900 12-16 hours
11" (28cm) Standard & Special Colors 11" (28cm) 0.35 oz. (10g) 0.5 cu ft (.015m3) 484 18-24 hours
11" (28cm) Metallic & Pearl Colors 11" (28cm) 0.35 oz. (10g) 0.5 cu ft (.015m3) 484 16-18 hours
16" (41cm) Round 16" (41cm) 1.2 oz. (34g) 1.5 cu ft (.042m3) 160 30+ hours
18" (46cm) Round 18" (46cm) 1.8 oz. (51g) 2 cu ft (.056m3) 121 36+ hours
24" (61cm) Round 24" (61cm) 4 oz. (120g) 5 cu ft (.142m3) 48 2-4 days
6" (15cm) Heart 6" (15cm) N/A 0.05 cu ft (.002m3) N/A N/A
11" (28cm) Heart 11" (28cm) 0.1 oz. (3g) 0.3 cu ft (.009m3) 806 8 hours
15" (38cm) Heart 15" (38cm) 0.4 oz. (11g) 0.61 cu ft (0.020m3) 396 12 hours
3' (.9m) Heart 3' (91cm) 6 oz. (168g) 7 cu ft (.198m3) 34 3-5 days
12" (38cm) Quick Link 12" (31cm) 0.5 oz. (14g) 0.6 cu ft (0.02m3) 396 12+ hours
16" (41cm) GEO Donut® 16" (41cm) 0.5 oz. (14g) 0.7 cu ft (.020m3) 345 22-26 hours
16" (41cm) GEO Blossom® 16" (41cm) 0.4 oz. (11g) 0.6 cu ft (.017m3) 403 18-24 hours
30" (76cm) Metallic & Pearl Colors 30" (76cm) 6.5 oz. (184g) 8 cu ft (.226m3) 30 3-5 days
3' (.9m) Giant (inflated to 2.5') 2.5' (76cm) 6.5 oz. (184g) 8 cu ft (.226m3) 30 3-5 days
3' (.9m) Giant (inflated to 3.0') 3.0' (91cm) 12 oz. (339g) 15 cu ft (.425m3) 16 3-5 days
4' (1.2m) Cloudbuster** 4' (1.2m) 1.7 lb. (771g) 34 cu ft (0.963m3) 7 4-5 days
5.5' (1.7m) Cloudbuster** 5.5' (1.7m) 4.7 lb. (2.13kg) 66 cu ft (1.868m3) 4 8 days
8' (2.4m) Cloudbuster** 8' (2.4m) 15.5 lb. (7.03kg) 267 cu ft (7.561m3) 1 18 days


 

Foil Balloon Helium Chart


 


Balloon Description
Inflated Size (Width x Height) Lift Ability Gas Capacity Avg. # per 242ft3 tank
18" (46cm) Heart 14"x 13" 36cm x 33cm 0.1 oz. (2g) 0.5 cu ft (.014m3) 484
18" (46cm) Round 13.5"x 13.5" 34cm x 34cm 0.1 oz. (2g) 0.5 cu ft (.014m3) 484
18" (46cm) Square 13"x 13" 33cm x 33cm 0.1 oz. (3.5g) 0.6 cu ft (.017m3) 403
18" (46cm) Diamond 18" x 17" 46cm x 43cm 0.14 oz. (4.06g) 0.54 cu ft (0.015m3) 448
20" (51cm) Star 18" x 18" 46cm x 45cm 0.1 oz. (3g) 0.6 cu ft (.017m3) 403
24" (61cm) Round Crystal 24" x 23" 61cm x 58cm 0.5 oz. (12.9g) 1 cu ft (.03m3) 231
24" (61cm) Heart Crystal 24" x 23" 61cm x 58cm 0.4 oz. (11.8g) 1 cu ft (.028m3) 244
31" (79cm) Round 24" x 24" 61cm x 61cm 1.5 oz. (43.6g) 1.6 cu ft (.045m3) 151
34" (86cm) Diamond 28" x 28" 71cm x 71cm 1.5 oz. (43.7g) 1.5 cu ft (.042m3) 161
36" (91cm) Heart 27.5"x 27" 70cm x 69cm 1.9 oz. (53g) 4 cu ft (.113m3) 61
36" (91cm) Round 27"x 27" 69cm x 69cm 2.3 oz. (66g) 4.4 cu ft (.125m3) 55
36" (91cm) Star 31.5"x 30" 80cm x 76cm 1.1 oz. (32g) 2.5 cu ft (.071m3) 97