Automotive & Fuel Efficiency Suite

Fuel Economy Converter

Convert seamlessly between MPG (US), MPG (Imperial), L/100km, and km/L with instant trip fuel cost calculations.

MPG (US)
30
Standard in the United States
MPG (UK)
36.03
Standard in the UK
L/100 km
7.84
Standard across Europe & Asia
km/L
12.75
Used in Japan, India, Latin America
gal/100 mi
3.33
Consumption rate metric

Trip Fuel Cost Calculator

Estimated Trip Cost
$11.67
Total Fuel: 3.33 gal (12.62 L)
Rate: $3.50 per gallon

Conversion Formulas

  • MPG (US) to L/100km: L/100km = 235.215 / MPG (US)
  • L/100km to MPG (US): MPG (US) = 235.215 / L/100km
  • MPG (UK) to MPG (US): MPG (US) = MPG (UK) × 0.83267
  • km/L to L/100km: L/100km = 100 / (km/L)

Common Vehicle Benchmarks

Economy Hybrid (55 MPG US)4.28 L/100 km
Standard Sedan (32 MPG US)7.35 L/100 km
Midsize SUV (24 MPG US)9.80 L/100 km
Full-size Truck (16 MPG US)14.70 L/100 km