Metric Operating Expense Metric
Fuel Cost Per Kilometer Calculator
Calculate your vehicle’s fuel cost per kilometer driven using local fuel price per liter and liters per 100km (L/100km). Easily estimate 100 km driving expenses and annual fuel budgets.
Metric Cost Per km Formula Tool
Formula: Cost Per km = (L/100km ÷ 100) × Price Per Liter
$/ liter
L/100km
km/year
Your Fuel Cost Per Kilometer
$0.124/ km
Exactly $12.37 for every 100 kilometers driven.
Per 500 km Drive
$61.87
Annual Total (20,000 km)
$2,475.00
Cost Per km = (L/100km ÷ 100) × Fuel Price Per Liter
Worked Example:
With fuel priced at $1.65 per liter and a car consuming 7.5 L/100km:
(7.5 ÷ 100) × $1.65 = 0.075 × $1.65 = $0.124 per kilometer ($12.38 per 100 km)
Over 20,000 kilometers per year, total fuel spend is 20,000 × $0.12375 = $2,475.00.
Common Metric Fuel Calculation Errors
- Multiplying by L/100km directly: Multiplying $1.65 × 7.5 yields $12.38, which is the cost for 100 kilometers, not 1 kilometer. You must divide by 100 to get cost per kilometer ($0.124/km).
- Calculating from km/L: If you have km/L instead of L/100km, the formula is
Price Per Liter ÷ km/L. For example, $1.65 ÷ 13.33 km/L = $0.124/km.
Frequently Asked Questions
Divide cost per mile by 1.609344. For example, $0.16 per mile ÷ 1.609344 = $0.0994 per kilometer.
Metric Reference Tables
View full price vs. L/100km matrix charts.
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