Fuel Consumption Converter ⛽
Free online fuel consumption converter. Convert MPG to L/100km, km/l, gallons per 100 miles and more. Calculate fuel efficiency between US, UK, and metric units instantly.
📐 Conversion Formula
Common Fuel Consumption Conversions
Quick Fuel Efficiency Conversions
MPG to L/100km
235.215 ÷ MPG
30 MPG = 7.84 L/100km
L/100km to MPG
235.215 ÷ L/100km
8 L/100km = 29.4 MPG
km/L to L/100km
100 ÷ km/L
15 km/L = 6.67 L/100km
US to UK MPG
MPG (US) × 1.201
30 MPG US = 36 MPG UK
Converter Performance Metrics
How to Use Fuel Consumption Converter
Step 1: Enter Fuel Consumption Value
Type the fuel consumption value you want to convert in the "From" field. The converter accepts any positive number including decimals. For example, enter 30 for 30 MPG or 8 for 8 L/100km depending on your selected unit.
Step 2: Select Source Unit
Choose the unit of your input fuel consumption from the "From" dropdown. Options include MPG (US), MPG (UK), L/100km, km/L, and other fuel efficiency units. Select the unit that matches your vehicle specification or measurement standard.
Step 3: Select Target Unit
Pick the unit you want to convert to from the "To" dropdown. The conversion happens automatically in real-time as you change units. The formula used for conversion is displayed below for educational reference and verification.
Step 4: Use Results
View the converted result in the "To" field. Click Copy to copy the result to clipboard, Swap to reverse conversion direction, or Reset to start over. All calculations are instant and accurate for automotive applications.
Understanding Fuel Consumption Units
What is Fuel Consumption?
Fuel consumption measures how efficiently a vehicle uses fuel. Two main systems exist: distance per fuel volume (MPG, km/L) and fuel volume per distance (L/100km). Higher MPG or km/L means better efficiency (more distance per fuel). Lower L/100km means better efficiency (less fuel per distance). These are inversely related.
Key Conversions: \( \text{MPG (US)} = \frac{235.215}{\text{L/100km}} \), \( \text{MPG (UK)} = \frac{282.481}{\text{L/100km}} \), \( \text{MPG (UK)} = \text{MPG (US)} \times 1.201 \), \( \text{km/L} = \frac{100}{\text{L/100km}} \). US gallon = 3.785 liters, UK gallon = 4.546 liters.
Common Fuel Efficiency Units Explained
MPG (Miles Per Gallon): Distance traveled per gallon of fuel. Used primarily in USA and UK. US MPG uses US gallons (3.785L), UK MPG uses imperial gallons (4.546L). Higher is better. Typical cars: 25-35 MPG (US), 30-45 MPG (UK). Hybrids: 40-60 MPG.
L/100km (Liters per 100 kilometers): Fuel volume needed to travel 100 km. Standard in Europe, Canada, Australia. Lower is better. Typical cars: 6-10 L/100km. Efficient cars: 4-6 L/100km. SUVs: 8-12 L/100km. Note inverse relationship with MPG.
km/L (Kilometers per Liter): Distance traveled per liter. Used in some Asian countries, Latin America. Higher is better. Similar concept to MPG but metric. Typical cars: 10-15 km/L. Formula: \( \text{km/L} = \frac{100}{\text{L/100km}} \) or \( \text{km/L} = \text{MPG (US)} \times 0.425 \).
Common Use Cases
🚗 Car Shopping & Comparison
Compare fuel efficiency between vehicles using different units. US cars show MPG (US), European cars show L/100km, Asian cars may show km/L. Convert all to same unit for fair comparison. Essential for understanding true running costs before purchase.
🌍 International Travel
Understand fuel consumption when renting cars abroad. US rental shows MPG, European rental shows L/100km. Convert to familiar units to estimate fuel costs. Essential for road trip planning and budgeting across different countries with different fuel pricing.
💰 Fuel Cost Calculation
Calculate trip fuel costs by converting between units. Know car's L/100km, convert to gallons for US fuel prices. Or convert MPG to liters for international pricing. Essential for budgeting, fleet management, and understanding true vehicle operating costs over time.
🚛 Fleet Management
Companies track fuel efficiency across vehicle fleets. Convert between units for international operations. Monitor fuel consumption trends, identify inefficient vehicles, optimize routes. Essential for cost control, environmental reporting, and operational efficiency in logistics and transportation.
🌱 Environmental Impact
Understand vehicle emissions by fuel consumption. Lower consumption = lower CO2 emissions. Convert between units to compare environmental impact. Choose more efficient vehicles for carbon footprint reduction. Essential for sustainability goals and environmental responsibility.
📊 Performance Monitoring
Track personal vehicle fuel efficiency over time. Calculate actual MPG or L/100km from fill-ups. Compare to manufacturer claims. Identify issues like decreased efficiency indicating maintenance needs. Monitor impact of driving habits on fuel consumption.