Loggerfish › Dive calculators
Free dive calculators
Six planning aids from the Loggerfish app, free to use here with no sign-up: nitrox MOD, best mix, no-stop limit, SAC, weighting and minimum gas.
Nitrox MOD and EAD calculatorFind the deepest depth you can take a nitrox mix to, and the best mix for a planned depth.Best mix calculator: nitrox and trimix with ENDFind the blend for a planned depth: as much oxygen as your ppO₂ limit allows, and helium only if your END limit needs it.No-stop limit (NDL) calculatorFind how many minutes you have at a depth before you would need decompression stops, on air or nitrox.SAC rate calculatorWork out how much gas you breathe per minute at the surface, so dives at different depths can be compared.Dive weighting calculatorA starting point for how much lead to wear. Always confirm it with a buoyancy check in the water.Minimum gas (rock bottom) calculatorFind the reserve at which a dive has to end so that two divers can reach the surface on one cylinder.
The same calculations run in the Loggerfish app.