Basic Block Fuel Subtotal Calculator
Sum taxi, trip, contingency, and final-reserve components into a basic block-fuel subtotal; other required fuel may still apply.
Description
Sum taxi, trip, contingency, and final-reserve components into a basic block-fuel subtotal; other required fuel may still apply.
Basic Block Fuel Subtotal Calculator provides a focused, reproducible calculation with explicit inputs and a deterministic result. Sum taxi, trip, contingency, and final-reserve components into a basic block-fuel subtotal; other required fuel may still apply.
Use to add four already-determined fuel components into a transparent subtotal.
When to use Basic Block Fuel Subtotal Calculator
Use to add four already-determined fuel components into a transparent subtotal.1
How the calculation works
Sum taxi, trip, contingency, and final-reserve components into a basic block-fuel subtotal; other required fuel may still apply.2
Subtotal = taxi + trip + contingency + final reserve Inputs and interpretation
Keep every input on the same valuation, timing, unit, and assumption basis. Interpret the output at the precision supported by those inputs rather than treating extra decimal places as additional certainty.
Limitations and assumptions
This is deliberately not called minimum required fuel: alternate, additional, discretionary, holding, isolated-aerodrome, unusable, or other fuel may be required by the operation and rules.
References
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Pilot's Handbook of Aeronautical Knowledge — Federal Aviation Administration
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Flight planning — Wikipedia contributors
Similar or alternative tools
- Block Fuel Calculator
Sum trip, contingency, alternate, final reserve, and taxi fuel into the total block fuel.
- Minimum Fuel Required
Add planned trip, alternate, contingency, and final-reserve fuel in one consistent unit, then show the margin against fuel on board. It does not substitute for route-specific regulations or aircraft performance planning.
- Contingency Fuel Calculator
Compute the contingency fuel allowance as a percentage of trip fuel.