L/100km ↔ MPG Converter
Convert between L/100km and MPG fuel efficiency instantly
📚 L/100km ↔ MPG Conversion Details
L/100km to MPG Formula
To convert L/100km to MPG, divide 235.214583 by the L/100km value.
MPG to L/100km Formula
To convert MPG to L/100km, divide 235.214583 by the MPG value.
Measurement Systems
L/100km (liters per 100 kilometers) is used in metric countries.
MPG (miles per gallon) is used in the US and UK (different gallons).
Note: This converter uses US MPG (1 US gallon = 3.78541 liters)
Efficiency Rating
- Good Less than 8 L/100km
- Average 8-12 L/100km
- Poor More than 12 L/100km
⛽ How This Converter Works
This is a bidirectional converter that converts between metric and imperial/US fuel efficiency measurements:
- L/100km → MPG: When you type in the L/100km field, the MPG field automatically updates
- MPG → L/100km: When you type in the MPG field, the L/100km field automatically updates
- Inverse relationship: Lower L/100km = Higher MPG (both mean better efficiency)
- Real-time: Updates happen as you type, no button clicks required
1 US gallon = 3.785411784 liters
1 mile = 1.609344 kilometers
// Conversion Formula:
MPG = (100 × 3.785411784) ÷ (1.609344 × L/100km)
Simplified: MPG = 235.214583 ÷ L/100km
// Example 1: 8 L/100km
MPG = 235.214583 ÷ 8 = 29.401822875 ≈ 29.4 MPG
// Example 2: 30 MPG
L/100km = 235.214583 ÷ 30 = 7.8404861 ≈ 7.8 L/100km
📊 Fuel Efficiency Comparison Table
| L/100km | MPG (US) | Efficiency | Vehicle Type |
|---|---|---|---|
| 4.0 | 58.8 | Excellent | Hybrid/Electric |
| 6.0 | 39.2 | Very Good | Compact Car |
| 8.0 | 29.4 | Good | Midsize Sedan |
| 10.0 | 23.5 | Average | SUV |
| 12.0 | 19.6 | Below Average | Truck |
| 15.0 | 15.7 | Poor | Large SUV/Van |
❓ Frequently Asked Questions
A: L/100km measures liters consumed per 100 kilometers (lower is better). MPG measures miles traveled per gallon (higher is better). They are inversely related.
A: This converter uses US MPG (1 US gallon = 3.78541 liters). UK MPG uses imperial gallons (1 imperial gallon = 4.54609 liters).
A: Generally: <8 L/100km or >29 MPG is good, 8-12 L/100km or 20-29 MPG is average, >12 L/100km or <20 MPG is poor.
A: L/100km measures fuel consumption per distance (lower consumption = better), while MPG measures distance per fuel (more distance = better). They're opposite measurements of the same efficiency.