L/100kmMPG US/UKkm/LBidirectional
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Quick Reference
Avg car: ~8 L/100km (29 MPG US). Efficient hybrid: ~4 L/100km (59 MPG US). US gallon = 3.785L, UK gallon = 4.546L.
Frequently Asked Questions
What is the difference between US and UK MPG?
US gallon is 3.785 liters while UK (imperial) gallon is 4.546 liters. So UK MPG numbers are about 20% higher than US MPG for the same car.
Is lower L/100km better?
Yes. Lower L/100km means better fuel economy. Higher MPG or km/L means better economy.
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