What is 30 MPG in Liters per 100km?

30 US MPG equals approximately 7.84 Liters per 100 km (L/100km).

Updated: August 2026 • Verified v1.2

Fuel Consumption Converter — US MPG, UK MPG & L/100km

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Conversion: US_MPG = 235.214583 / L_per_100km; UK_MPG = US_MPG * 1.20095; km/L = US_MPG / 2.35214583

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Understanding Your Results

Calculates synchronized conversions across US MPG (Miles per US Gallon), UK MPG (Miles per Imperial Gallon), Liters per 100 km (L/100km), and Kilometers per Liter (km/L).

Practical Guidance & Next Steps

In MPG higher is better, while in L/100km lower is better (less fuel consumed per distance).

What is this?

An automotive measurement utility that converts vehicle fuel consumption metrics across imperial and metric standards.

How does it work?

1. Enter fuel economy value. 2. Select base unit (US MPG, UK MPG, L/100km, km/L). 3. View instant conversions across all standards and copy in 1 click.

Why use it?

Accurately compares international vehicle fuel efficiency ratings without confusing US vs UK gallons.

Technical Scope & Calculation Limitations

Uses standard international fuel volume and distance conversion constants.

Frequently Asked Questions

An Imperial UK gallon is approximately 20% larger than a US liquid gallon (4.546 liters vs 3.785 liters), meaning a car rated at 30 US MPG gets about 36 UK MPG.

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