Advanced Multi-Tank Fuel Calculator
Enter vessel, draft, and parameters for each tank for detailed fuel calculations and totals.
General Information
Draft & Heel Parameters
Tank Data & Calculations
Tank 1
Enter data for this tank. This calculator applies Heel (VCC) and Temperature (VCF) corrections.
Volume from soundings/ullages, corrected for vessel trim using tables, *before* heel correction (VCC) is applied by this calculator.
Factor to correct volume for vessel's heel/list. Derived from tables based on heel & observed volume.
Volume Correction Factor for temperature. Typically from ASTM Table 54B (or similar standards) using Density@15°C & Observed Fuel Temp.
**Important Note:** The "Observed Volume (Trim Corr.)" input should be the volume obtained from tank soundings/ullages after correction for the vessel's trim, using official vessel calibration tables. The "Heel Correction Factor (VCC)" and "V.C.F." (e.g., from ASTM Table 54B or similar) should also be obtained from appropriate tables or calculations based on official standards. This calculator performs the subsequent arithmetic. Always consult official documentation for operational accuracy.
About Advanced Multi-Tank Fuel Calculator
Precision Fuel Monitoring
Fuel management is a critical aspect of ship operations, affecting both vessel performance and environmental compliance (MARPOL). This calculator is designed for marine engineers and bunker surveyors to accurately determine the quantity of fuel oil on board by consolidating data from multiple tanks.
Maritime Fuel Calculation Formulas
1. Gross Observed Volume (G.O.V):
GOV = Observed Volume (Trim Corrected) × Heel Correction Factor (VCC)
2. Gross Standard Volume (G.S.V):
GSV = GOV × Volume Correction Factor (VCF)
3. Mass in Metric Tons (MT):
Mass (MT) = GSV × (Density @ 15°C / 1000)
Technical Key Concepts
- Trim and Heel Correction: Mechanical measurements (soundings) must be corrected for the vessel's attitude. This calculator assumes inputs are trim-corrected and provides a field for the voluntary Heel Correction Factor (VCC).
- Temperature Correction (VCF): Liquid fuel expands and contracts with temperature. The VCF (often from ASTM Table 54B) adjusts the volume to a standard 15°C reference point.
- Density @ 15°C: The weight per unit volume at the standard temperature, typically found on the Bunker Delivery Note (BDN).
Compliance and Efficiency
Accurate fuel inventory (Bunker Survey) ensures the vessel maintains sufficient reserves for safe navigation (SOLAS) and provides reliable data for fuel consumption reporting (EU-MRV, IMO-DCS).