Convert km/L, mpg, L/100km for any vehicle
| Vehicle Type | km/L (typical) | US mpg | L/100km |
|---|---|---|---|
| Two-wheeler (Petrol) | 40–70 | 94–165 | 1.4–2.5 |
| Small Hatchback | 15–22 | 35–52 | 4.5–6.5 |
| Sedan/SUV | 10–18 | 24–42 | 5.5–10 |
| Diesel Car | 18–25 | 42–59 | 4–5.5 |
| EV (equivalent) | 35–50 eq. | 82–118 MPGe | – |
A fuel efficiency converter converts between different units used to measure how efficiently a vehicle uses fuel. Fuel efficiency (also called fuel economy or mileage) tells you how far a vehicle can travel per unit of fuel. Higher is better for km/L and mpg; lower is better for L/100km. Different countries use different standards — India uses km/L, Europe uses L/100km, and the USA and UK use mpg.
All conversions use km/L as the internal base unit:
Note: L/100km is an inverse unit — converting from/to it requires division, not multiplication.
To understand efficiency: A motorbike at 50 km/L uses half the fuel of a sedan at 15 km/L for the same distance. An electric vehicle uses no fuel but has a "MPGe" equivalent rating for comparison. A gas-guzzling truck at 6 km/L uses 8× more fuel than a scooter per km. Knowing your vehicle's efficiency helps plan trip costs.
Car buyers comparing Indian vehicles (km/L ratings) to imported models (mpg specs). Fleet managers calculating fuel budgets across international operations. Travellers planning road trips and estimating fuel costs. Automotive reviewers comparing vehicles from different markets. Environmental analysts comparing carbon footprints of different vehicle types.
Rough conversion: 1 km/L ≈ 2.35 US mpg. So a car rated at 15 km/L ≈ 35 mpg (US). For L/100km: a car using 6 L/100km runs at 100÷6 = 16.7 km/L. The lower your L/100km number, the more fuel-efficient your car is. A score below 5 L/100km is considered very efficient; above 12 is poor.
US mpg and UK mpg are different! The US gallon = 3.785 L while the UK (Imperial) gallon = 4.546 L. So a UK-rated 50 mpg car would only be rated at about 41.5 US mpg. Always check which gallon standard is being used when comparing specifications from different countries.
Enter your fuel efficiency value, select the current unit (e.g., km/L for Indian cars), choose the target unit, and click Convert. Great for comparing car specs across markets or converting European L/100km figures to Indian km/L for easy comparison.
Fuel efficiency varies with driving conditions, speed, load, and road type. The values converted here are standardized test cycle numbers. Real-world mileage may differ by 10–30%. Electric vehicle MPGe conversions are not included. Hybrid fuel efficiency (combined electric + petrol) cannot be directly compared using this tool.