Gas Blending Calculator


  • O2: Desired percentage of O2.
  • He: Desired percentage of He.

Standard GUE Gases

Depth FSW Mix
0'-100' EAN32 or 30/30
100'-150' 21/35
150'-200' 18/45
200'-250' 15/55
250'-300' 12/65
300'+ 10/70

Decompression Mixes

Depth FSW Mix
20' 100%
70' 50%
120' 35/25
190' 21/35

Desired Blend

O2:


He:



Current Blend

O2:


He:


Starting PSI:


Ending PSI:


Fill Gas:





Note: This is currently under Beta! If you see anything that needs correcting please let me know.