O₂ Tank Duration Calculator
Calculate how long an oxygen tank will last based on tank size, current pressure, and flow rate. Essential for pre-hospital care planning and emergency response.
O₂ Tank Duration Calculator
3h 30m
Usable Duration (with 500 PSI reserve)
4h 40m total
Formula: Duration = (Pressure × Tank Factor) ÷ Flow Rate
Usable: (1500 × 0.28) ÷ 2 = 210 min
Total: (2000 × 0.28) ÷ 2 = 280 min
Usable: (1500 × 0.28) ÷ 2 = 210 min
Total: (2000 × 0.28) ÷ 2 = 280 min
Tank Size Reference
D Tank: 0.16 L/PSI (Small portable)
E Tank: 0.28 L/PSI (Standard portable)
M Tank: 1.56 L/PSI (Large portable)
H Tank: 3.14 L/PSI (Stationary)
Common Flow Rates
Nasal Cannula: 1-6 L/min
Simple Face Mask: 5-10 L/min
Non-Rebreather: 10-15 L/min
BVM Ventilation: 10-25 L/min
Safety Note
Always account for safety reserves when planning oxygen usage. Consider factors such as transport time, potential delays, and the need for higher flow rates during patient deterioration. This calculator provides estimates based on ideal conditions.