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Fuel Consumption Converter

Convert MPG, L/100km, and km/L to compare fuel consumption across systems. Translate 30 MPG for European buyers — free, local, no signup.

100% Local Browser Native

How to Use the Fuel Consumption Converter

1. Enter consumption

MPG, L/100km, or km/L.

2. Read all systems

Converted figures together.

3. Compute trip cost

Multiply by distance and price.

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Frequently Asked Questions

What is 30 MPG in L/100km?

About 7.8 L/100km (235.2 ÷ MPG). Lower L/100km means more efficient — the inverse scale confuses first-time converters.

US vs UK gallons?

Different sizes (3.78L vs 4.55L) — specify which gallon. UK MPG figures run ~20% higher numerically for identical efficiency.

Cost per trip?

Multiply consumption by distance and fuel price after converting. A 500 km trip at 7 L/100km uses 35 liters.

Do trip figures upload?

No — math runs locally in your browser. Numbers never leave your device.

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Last updated October 2026