unit-converters Verified Precision Tool
Fuel Economy Converter
Convert MPG (US & Imperial), L/100km, and km/L with non-linear reciprocal equations.
Fuel Economy & Consumption Converter
Convert vehicle fuel efficiency between Miles per Gallon (US & Imperial) and Liters per 100km.
0.8327 MPG (Imp)
Calculation Steps & Formula
1 MPG (US) = 0.8327 MPG (Imp)
Converting Miles per Gallon (US) to Miles per Gallon (Imperial) in the Fuel Economy & Consumption measurement domain.
Mathematical Formula
L/100km = 235.214583 divided by MPG (US)
Overview & Explanation
Converts vehicle fuel efficiency distinguishing US MPG (3.785 L gal), Imperial MPG (4.546 L gal), and European L/100km.
How It Works
- MPG measures distance per unit fuel (higher is better).
- L/100km measures fuel consumed per 100km distance (lower is better).
- Uses exact reciprocal transformation constant 235.214583.
Practical Applications
- Comparing European imported car fuel consumption.
- Road trip fuel budgeting.
Worked Example: Convert 30 US MPG to L/100km
Convert 30 MPG to Liters per 100km.
1
Reciprocal Division
235.214583 divided by 30
= 7.8405 L/100km
Frequently Asked Questions
Why is L/100km conversion non-linear?
MPG measures distance per volume of fuel, whereas L/100km measures volume of fuel per distance. They are mathematically inverse.
What is the difference between US MPG and UK/Imperial MPG?
A UK Imperial gallon is 20% larger than a US gallon, so 30 US MPG equals 36.03 Imperial MPG.
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