Dive Planning

Dive Unit Converter

Convert pressure, distance, weight, gas flow, tank volume, and temperature values instantly. Enter a value on either side of each pair and the matching unit updates automatically.

Convert Units

Pressure Conversion

PSI

Bar

Distance Conversion

Feet

Meters

Weight Conversion

Pounds

Kilograms

Tank Volume Conversion

Convert tank rated volume (cuft) to water volume (liters) using working pressure.

Working Pressure (PSI)

Working Pressure (Bar)

Cubic Feet

Liters

Gas Flow Conversion (SAC / RMV)

Liters per Minute (L/min)

Cubic Feet per Minute (ft³/min)

Temperature Conversion

Celsius

Fahrenheit

About This Tool

This converter is independent from your saved unit preferences and does not require direction toggles.

Type in PSI or bar, feet or meters, pounds or kilograms, cubic feet tank rating or liters water volume (with working pressure), liters per minute or cubic feet per minute, and Celsius or Fahrenheit. The paired value updates immediately.

Tank-volume conversion is an ideal-gas estimate from water volume and working pressure. Use the manufacturer's rated capacity when available because real-gas compressibility can change the result.

Conversion Factors

1\,\text{bar} \approx 14.5038\,\text{psi}

1\,\text{m} \approx 3.28084\,\text{ft}

1\,\text{kg} \approx 2.20462\,\text{lb}

1\,\text{ft}^3 \approx 28.3168\,\text{L}

1\,\text{ft}^3/\text{min} \approx 28.3168\,\text{L}/\text{min}

\begin{aligned} V_{\text{water}} &\approx \frac{V_{\text{rated}} \, C}{P_{\text{work}}} \\ C &= 28.3168\,\text{L}/\text{ft}^3 \end{aligned}

For tank conversion, rated volume is in cubic feet and working pressure is in bar in this ideal-gas approximation.

T_{^\circ\!F} = \frac{9}{5}T_{^\circ\!C} + 32

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