Fleet fuel card reconciliation calculator

Calculate exactly matched transaction IDs and unmatched transaction IDs with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Choose the currency for these amounts. Changing it keeps your numbers and does not convert exchange rates.

Use exactly matched transaction IDs and unmatched transaction IDs to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Card transactions JSON [ID,vehicle ID,elapsed day,liters,amount currency,odometer km] (USD)
[["T1","V1",1,40,60,1000],["T2","V1",2,70,105,1200]]
Independent odometer logs JSON [vehicle ID,elapsed day,odometer km]
[["V1",1,1000],["V1",2,1210]]
Supplied tank capacities JSON {vehicle ID:liters}
{"V1":60}
Exactly matched transaction IDs
["T1"]
Unmatched transaction IDs
["T2"]
Consistency flags [transaction,reason]
[["T2","Purchase exceeds supplied tank capacity"]]
Total card amount (USD)
$165.00

Try another scenario

Card transactions JSON [ID,vehicle ID,elapsed day,liters,amount currency,odometer km] (USD)
[["T1","V1",1,40,60,1000],["T2","V1",2,70,105,1200]]
Independent odometer logs JSON [vehicle ID,elapsed day,odometer km]
[["V1",1,1000],["V1",2,1200]]
Supplied tank capacities JSON {vehicle ID:liters}
{"V1":60}
Exactly matched transaction IDs
["T1","T2"]
Unmatched transaction IDs
[]
Consistency flags [transaction,reason]
[["T2","Purchase exceeds supplied tank capacity"]]
Total card amount (USD)
$165.00
Calculation method

Calculation method

Exactly matched transaction IDs

One-to-one exact match by vehicle, day, odometer; consume first unused log row in input order.

Unmatched transaction IDs

No unused exact log match.

Consistency flags [transaction,reason]

Flag purchase liters>suppliedTankCapacity or liters<=0, descriptive only.

Total card amount (USD)

Sum supplied transaction amounts.

Symbols and units
a
Card transactions JSON [ID,vehicle ID,elapsed day,liters,amount currency,odometer km] (USD)
b
Independent odometer logs JSON [vehicle ID,elapsed day,odometer km]
c
Supplied tank capacities JSON {vehicle ID:liters}

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Literal reconciliation and limited plausibility flags, not fraud detection. A fill can legitimately cover containers or multiple vehicles; supplied tank comparison does not establish wrongdoing. No data fetched or altered. Supported limits: Unique transaction IDs; known vehicle capacity>0; integer day>=0; odometer>=0; cost>=0; <=1000 rows.
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