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Free Fuel Consumption Converter (MPG US to L/100km & km/L) Online

Convert automobile fuel economy between Miles Per Gallon (US MPG), UK Imperial MPG, Liters per 100 km (L/100km), and Kilometers per Liter (km/L). — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
Universal Unit Engine
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328.08399

How It Works

1

Enter Fuel Efficiency

Input mileage reading (e.g. 30 MPG or 7.8 L/100km).

2

Choose Fuel Standard

Select US MPG, Imperial MPG, L/100km, or km/L.

3

View Converted Rates

Inspect inverted reciprocal conversions instantly.

Frequently Asked Questions

MPG measures distance per volume (higher is better), while L/100km measures volume consumed per distance (lower is better). Formula: L/100km = 235.214 / US MPG.

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