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Tuesday, October 27, 2026
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Bay District Volunteer Fire Department
Fire & EMS Calculator Library › Phase 4: Building Fire Flow & Incident Size-Up
Phase 4 · Tool 32 of 77

Required Flow Duration

Computes the total volume needed to sustain a flow for a duration, with any reserve shown as a separate line rather than blended into the figure.

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: Tanker-shuttle logistics or a sustained defensive operation - find the total gallons needed to sustain a given flow for an expected operating period, with a safety reserve tracked separately.

Flow & Duration Inputs

Result

Enter flow and duration, then press Calculate.

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