Fuel Consumption Guide: MPG, L/100km & km/L

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Convert fuel economy between miles per gallon (US and UK) and liters per 100 kilometers with practical driving examples.

Fuel Consumption Guide- MPG, L_100km & km_L

This guide covers fuel consumption guide: mpg, l/100km & km/l with formulas, quick-reference tables, and direct links to ShoutingNow converters. Start with the full fuel-consumption-converter when you need every unit in one dropdown, or jump to a dedicated pair tool below.

Full multi-unit converter

Open the fuel consumption converter — choose any from/to units, enter a value, and click Calculate for a summary result.

MPG to L/100km reference chart (US gallon)

mpg US L/100km
20 11.8
30 7.8
40 5.9
50 4.7
Tags: Calculator Imperial Math Metric Science Unit Conversion

Frequently asked questions

Direct answers to common questions about this topic.

Open the dedicated multi-unit converter for this category, choose your from and to units, enter a value, and click Calculate. Pair converters are linked from the matching guide blog.