Oxygen Tank Duration Calculator
Calculate how long an oxygen tank will last based on tank pressure, volume, and flow rate. Essential for medical oxygen planning and scuba diving.
How to Use This Calculator
- Enter tank pressure (PSI or Bar).
- Enter tank volume (liters or cubic feet).
- Enter flow rate in liters per minute.
- Select pressure and volume units.
- The calculator displays tank duration in minutes and hours.
Oxygen Tank Duration Formula
Duration is calculated from pressure, volume, and flow rate:
Simplified: Duration = (Pressure × Volume) / (Flow × 14.7)
Where:
- Pressure in PSI (or converted from Bar)
- Volume in liters (or converted from cubic feet)
- Flow Rate in L/min
- Atmospheric Pressure = 14.7 PSI
Example: 2000 PSI, 10L tank, 2 L/min flow: Duration = (2000 × 10) / (2 × 14.7) = 680 minutes = 11.3 hours. Higher flow rates reduce duration proportionally. Lower flow rates extend duration significantly. Always monitor tank pressure and plan accordingly!
Full Description
The Oxygen Tank Duration Calculator determines how long an oxygen tank will last based on tank pressure, volume, and flow rate. This is essential for medical oxygen planning, scuba diving, and any application requiring oxygen supply management. Understanding tank duration helps ensure adequate oxygen supply and prevents running out unexpectedly.
Duration is calculated as (Tank Pressure × Tank Volume) / (Flow Rate × Atmospheric Pressure). The formula accounts for pressure (how much oxygen is stored), volume (tank size), and flow rate (consumption rate). Higher flow rates consume oxygen faster, reducing duration. Lower flow rates extend duration significantly. Medical oxygen typically uses PSI and liters, while scuba diving may use different units. The calculator converts units automatically.
This calculator helps you plan oxygen supply. Enter pressure, volume, flow rate, and units, and it calculates duration in minutes and hours. Use it for medical oxygen planning, scuba diving, understanding tank capacity, or managing oxygen supply. Always consult medical professionals for oxygen therapy requirements and monitor tank pressure regularly!
Frequently Asked Questions
How is oxygen tank duration calculated?
Duration = (Tank Pressure × Tank Volume) / (Flow Rate × Atmospheric Pressure). Simplified: Duration (minutes) = (Pressure × Volume) / (Flow × 14.7). Example: 2000 PSI, 10L tank, 2 L/min flow: Duration = (2000 × 10) / (2 × 14.7) = 680 minutes (11.3 hours).
What units should I use?
Pressure: PSI (pounds per square inch) or Bar (1 bar = 14.5 PSI). Volume: Liters or cubic feet (1 cubic foot = 28.3 liters). Flow Rate: Liters per minute (L/min). The calculator converts units automatically. Medical oxygen typically uses PSI and liters.
How does flow rate affect duration?
Higher flow rate = shorter duration. Flow rate determines how quickly oxygen is consumed. Example: 10L tank at 2000 PSI: 1 L/min = 1,360 minutes (22.7 hours), 2 L/min = 680 minutes (11.3 hours), 4 L/min = 340 minutes (5.7 hours). Lower flow rates extend duration significantly.
What is a typical oxygen tank setup?
Medical oxygen: 2000-3000 PSI, 1-10L tanks, flow rates 1-6 L/min. Scuba diving: 3000 PSI, various sizes, consumption varies with depth and activity. Portable oxygen: Smaller tanks (1-2L) for mobility. Always consult medical professionals for oxygen therapy requirements.