1. What is MPG to km/L Conversion?

Definition: This calculator converts fuel efficiency from Miles per Gallon (MPG) to Kilometers per Liter (km/L).

Purpose: It helps compare fuel efficiency measurements between countries that use different systems (US/UK vs metric).

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{km/L} \) — Kilometers per liter (metric fuel efficiency)
• \( \text{MPG} \) — Miles per gallon (US/UK fuel efficiency)
• \( 0.425144 \) — Conversion factor combining mile-to-km and gallon-to-liter conversions

Explanation: The conversion accounts for both distance (1 mile = 1.60934 km) and volume (1 gallon = 3.78541 liters) differences.

3. Importance of Fuel Efficiency Conversion

Details: Understanding both measurement systems is crucial when comparing vehicle specifications internationally or when traveling between countries.

4. Using the Calculator

Tips: Simply enter the MPG value and the calculator will instantly show the equivalent km/L. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Is this conversion for US or UK gallons?
A: This uses US gallons (3.78541 liters). UK gallons are larger (4.54609 liters), requiring a different conversion factor (0.354006).

Q2: Why is km/L used instead of L/100km?
A: km/L is more intuitive for direct MPG comparisons. To get L/100km, divide 100 by the km/L value.

Q3: What's considered good fuel efficiency?
A: Generally, 20 MPG (8.5 km/L) is poor, 30 MPG (12.75 km/L) is average, and 40+ MPG (17+ km/L) is excellent.

Q4: How accurate is this conversion?
A: The conversion is mathematically precise, but real-world fuel efficiency may vary based on driving conditions.

Q5: Can I convert km/L back to MPG?
A: Yes, multiply km/L by 2.35215 to get MPG (US gallons).