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Technical playground

Learn how a bunker requirement behaves.

A beginner-friendly virtual bunker desk for quantity, quality, reconciliation and commercial checks. All results are educational estimates.

Perspective

See the measurement and safety meaning first.

01 · Quantity lab

Turn fuel mass into volume

MT means metric tonnes, a mass. CBM means cubic metres, a volume. One CBM equals 1,000 litres. Density connects them.

Mass1.000 MT
Volume · CBM1.195 m³
Volume · litres1,195 L

Reference volume uses density at 15°C. Observed delivery volume changes with temperature and must use an approved correction method for contractual measurement.

02 · BDN reconciliation lab

Compare meter and delivery-note figures

BDN means Bunker Delivery Note. Enter an anonymised exercise and inspect where figures agree or need checking.

Meter difference340,875 L
Reference quantity279.400 MT
Difference0.000 MT

CONSISTENT WITH ENTERED DATA

Reconciliation depends on the contractual measurement basis, temperature correction, calibrated metering and delivery documents. A flag is a prompt to check figures, not an accusation of shortage.

03 · Fuel quality lab

Check a result against limits you enter

COQ means Certificate of Quality. Enter a result and an agreed limit; this tool does not certify fuel.

SafetyWITHIN ENTERED LIMIT
EnvironmentalCHECK APPLICABLE SPECIFICATION
CombustionCHECK APPLICABLE SPECIFICATION
HandlingCHECK APPLICABLE SPECIFICATION
Quantity / densityENTER CONTRACT LIMITS

04 · Blend playground

See how component properties interact

EDUCATIONAL MODEL · NOT A BLENDING INSTRUCTION. Blended middle distillates exist in the international market. Calculated properties cannot replace representative testing, the applicable specification, COQ or delivery documentation.

Tank A
Tank B
Tank C
Estimated density0.837 kg/L
Estimated sulphur0.100 %
Estimated viscosity3.000
Estimated cetane45.000
Flashpoint riskCHECK INPUTS
Estimated component cost$700.00 / MT

100% allocated

05 · Commercial game

See the economics of one bunker transaction

Use a manual USD/MVR rate. This is a treasury and procurement exercise, not a live price or hidden markup strategy.

Purchase cost$70,000.00
FX effect$0.00
Logistics$1,500.00
Export tax$0.00
Total cost$71,500.00
Cost / MT$715.00
Gross margin / MT$20.00
Total gross margin$2,000.00

The 6% foreign-going figure is labelled a BFM commercial scenario. Confirm current statutory treatment for the actual transaction.

06 · Supplier selection

Headline price is only one input

Fictional profiles show why delivered economics can change with quantity, minimum quantity and transport charge.

Small-stem supplier

Example minimum: 50 MT

Example transport / MT: $35

Enter a quantity

Medium-stem supplier

Example minimum: 100 MT

Example transport / MT: $20

Enter a quantity

Large-stem supplier

Example minimum: 250 MT

Example transport / MT: $10

Enter a quantity

The lowest headline fuel price is not necessarily the lowest delivered bunker cost.

07 · Ready-to-bunker mission

Is the enquiry ready for a commercial check?

Tick the information a vessel or buyer has available. “Ready” here means information is assembled, not approved for bunkering.

INFORMATION STILL REQUIRED

08 · Sample transaction

An anonymised training case

A bunker order may combine a large MT quantity, USD/MT price, CBM, barge delivery, hose or connection requirements, BDN start/finish readings and a COQ requirement. The commercial offer may be all-inclusive or itemised.

This example contains no customer, vessel, counterparty, order number, supplier identity or confidential rate.

Take a real requirement to the bunker desk

These tools are educational. Send the vessel, IMO number, position, ETA, grade, specification if applicable and quantity for a case-by-case check.

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