⛽ Gas Mileage Calculator

🎯 Getting Started

Calculate your vehicle's fuel efficiency and trip costs in two ways:

• Calculate Mileage: Enter distance traveled and fuel consumed to calculate fuel economy
• Enter Mileage: Enter your vehicle's known fuel economy to calculate trip costs
• Choose between Metric (km, L) or Imperial (mi, gal) units
• View results in multiple fuel economy units simultaneously

🔄 Using Direct Entry Mode

If you already know your vehicle's fuel economy:

• Switch to "Enter Mileage" mode
• Enter your vehicle's fuel economy (supports L/100km, MPG US, MPG UK, km/L)
• Enter fuel price to see cost per distance
• Optionally add trip distance to calculate total trip cost
• Tip: After calculating mileage, use "Use Calculated Value" to transfer results to direct entry mode

📐 Fuel Economy Units

Results are displayed in all common fuel economy formats:

• L/100km (Liters per 100 kilometers) - European/Canadian standard
• MPG US (Miles per gallon, US) - American standard
• MPG UK (Miles per gallon, Imperial) - British standard
• km/L (Kilometers per liter) - Asian/Australian standard

💡 Lower L/100km is better, higher MPG/km/L is better

💰 Cost Analysis

When you enter fuel price, the calculator shows:

• Trip Cost: Total fuel cost for the distance traveled
• Cost per 100km/mi: How much it costs to drive 100 units
• Cost per km/mi: Cost efficiency per single distance unit

🔄 Unit Conversions

Distance:

• 1 mile = 1.60934 kilometers
• 1 kilometer = 0.621371 miles

Volume:

• 1 US gallon = 3.78541 liters
• 1 UK gallon = 4.54609 liters
• 1 liter = 0.264172 US gallons = 0.219969 UK gallons

📊 Example Calculations

Example 1 (Calculate Mode - Metric): You drove 450 km and used 35 L of fuel

• Fuel economy: 7.78 L/100km (30.2 MPG US, 36.3 MPG UK, 12.9 km/L)

Example 2 (Calculate Mode - Imperial): You drove 300 miles and used 10 gallons

• Fuel economy: 30 MPG US (7.84 L/100km, 36 MPG UK, 12.8 km/L)

Example 3 (Direct Entry Mode): Your car gets 8.5 L/100km, gas costs $1.60/L

• Cost per 100 km: $13.60
• Cost per km: $0.136
• For a 350 km trip: $47.60