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⛽ Fuel Cost Calculator

🛣️ Distance ?

Tip: 1 mi = 1.609344 km 🚗🔧 Fuel efficiency ?

Lower is better for L/100km; higher is better for mpg or km/L. ⛽ Fuel amount ?

This field updates automatically. 💵 Fuel price ?

Currency is not enforced — enter numbers in your local currency. 💰 Trip cost ?

units of your currency

Based on fuel amount × fuel price.

🧮 Step-by-step derivation

Enter values to see the algebra here.

⚡ Quick summary

Waiting for inputs…

📚 Reference & unit constants

Item	Value	Note
1 mile in km	1.609344	Exact definition
1 US gal in L	3.785411784	Exact (US statute)
1 UK gal in L	4.54609	Exact (Imperial)
Fuel amount	Distance / Efficiency	Distance & efficiency must be in consistent units
Trip cost	Fuel amount × Fuel price	Use same fuel unit as the price unit

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