Depth / Distance
Useful for dive depth, visibility, lines and general distance.
⇄
1 m = 3.28084 ft
DiverInterCom KCore Scuba · Dive Calculators
Calculate Units
A quick metric ↔ imperial converter for the units divers meet most often. Type into either side and the matching value updates immediately.
m ↔ ftbar ↔ psiL ↔ ft³L/min ↔ ft³/minkg ↔ lb°C ↔ °Fm/min ↔ ft/min
Pressure
Convert cylinder, regulator and gauge pressure.
⇄
1 bar = 14.5038 psi
Gas Volume
Surface-equivalent breathing gas volume, not cylinder water volume.
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1 ft³ = 28.3168 L
SAC / RMV
Convert surface gas consumption between L/min and ft³/min.
⇄
1 ft³/min = 28.3168 L/min
Weight / Ballast
Body weight, lead weight and equipment mass.
⇄
1 kg = 2.20462 lb
Temperature
Water temperature, air temperature and equipment specifications.
⇄
°F = °C × 9/5 + 32
Ascent / Descent Rate
Convert vertical travel rates used in dive planning.
⇄
1 m/min = 3.28084 ft/min
Cylinder Internal Volume
Convert the physical internal/water volume of a cylinder.
⇄
1 US gal = 3.78541 L
Scuba Cylinder Size
Compare European cylinder size with the approximate US-style rated gas capacity.
@
⇄
10 L @ 232 bar ≈ 82 ft³
Approximation: litres × bar ÷ 28.3168 = ft³. Actual manufacturer ratings can vary slightly.
Small Length
Useful for hose lengths, equipment dimensions and hardware sizes.
⇄
1 in = 2.54 cm
Scuba cylinder note: an 11.1 L cylinder and an “80 ft³” cylinder rating describe different things. Litres commonly describe the cylinder’s internal water volume, while cubic feet on many imperial scuba cylinders describes the amount of free gas at the rated service pressure. Do not convert those labels directly as if they were the same measurement.