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Fire & EMS Calculator Library › Phase 7: EMS Medication & Infusion Arithmetic
Phase 7 · Tool 54 of 77

Oxygen Cylinder Duration

Duration = cylinder factor x (starting psi - reserve psi) / flow. Cylinder factors are generic published tank constants - verify against the cylinders and regulators actually in service.

ℹVerify locally before acting. This tool is a planning and arithmetic aid, not a substitute for training, local SOPs, calibrated instruments, or scene assessment. Confirm critical values independently. Suite status: DRAFT - not yet department-approved for operational use.
When you'd use this: Estimating how long a cylinder will last at a given flow, to plan a swap before it runs dry.

Cylinder Inputs

Result

Select cylinder type and enter pressures and flow, then press Calculate.

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