حاسبة اقتصاد الوقود (ميل لكل غالون / لتر لكل 100 كم)
مرشد
Fuel Economy Calculator
Convert between fuel economy formats (MPG US, MPG UK, L/100km, km/L), calculate trip fuel costs, compare two vehicles side by side, estimate annual fuel expenses, and see CO2 emissions — all in one tool. Enter your values and results update instantly.
كيف تستعمل
Start with the fuel economy converter — enter a value in any format and instantly see it converted to all others. Use the trip cost section to calculate how much a specific journey will cost in fuel. Compare two vehicles to see which one saves more money. Estimate your annual fuel budget based on yearly mileage. All calculations update in real-time as you type.
سمات
- Universal Conversion — Convert between MPG (US), MPG (UK/Imperial), L/100km, and km/L instantly. Handles the US vs Imperial gallon distinction correctly.
- Trip Cost Calculator — Enter distance, fuel economy, and fuel price to calculate total fuel needed, total cost, and cost per kilometer or mile.
- Vehicle Comparison — Compare two vehicles side by side over a given distance to see fuel savings, cost difference, and percentage improvement.
- Annual Cost Estimator — Enter your yearly mileage, fuel economy, and fuel price to see annual and monthly fuel expenses.
- CO2 Emissions Estimate — See estimated carbon dioxide output based on fuel consumed, with separate factors for gasoline (~2.31 kg/L) and diesel (~2.68 kg/L).
- Metric & Imperial Support — Work in kilometers or miles, liters or gallons, with any currency for fuel prices.
Conversion Formulas
- MPG (US) to L/100km: 235.2146 ÷ MPG
- MPG (UK) to L/100km: 282.4809 ÷ MPG
- km/L to L/100km: 100 ÷ km/L
- 1 US gallon = 3.78541 liters
- 1 UK (Imperial) gallon = 4.54609 liters
التعليمات
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What is the difference between MPG US and MPG UK?
The US gallon (3.785 liters) is smaller than the UK Imperial gallon (4.546 liters). This means the same vehicle will have a higher MPG number when measured in UK gallons. For example, 30 MPG (US) equals about 36 MPG (UK). Always check which gallon standard is being used when comparing fuel economy figures — US specifications use US gallons, while UK and some Commonwealth countries use Imperial gallons.
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Why do some countries use L/100km instead of MPG?
L/100km (liters per 100 kilometers) is the standard in Europe, Australia, and most metric countries. It measures fuel consumption rather than fuel efficiency — a lower number means better economy. Many drivers find it more intuitive for budgeting since it directly tells you how much fuel you'll use for a given distance. MPG (miles per gallon) is used in the US and UK, where a higher number means better economy.
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How is CO2 emission calculated from fuel consumption?
Burning one liter of gasoline produces approximately 2.31 kg of CO2, while one liter of diesel produces about 2.68 kg of CO2. These are standard emission factors used by environmental agencies worldwide. To estimate your trip or annual CO2 output, multiply the total liters of fuel consumed by the appropriate factor. This gives a reasonably accurate estimate for most passenger vehicles.
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What is a good fuel economy rating?
This varies by vehicle type. For passenger cars: under 6 L/100km (over 39 MPG US) is excellent, 6-8 L/100km (29-39 MPG) is good, 8-12 L/100km (20-29 MPG) is average, and over 12 L/100km (under 20 MPG) is poor. SUVs and trucks typically consume more. Hybrid vehicles can achieve 3-5 L/100km (47-78 MPG), and plug-in hybrids even less when running on electric power. These figures assume combined city/highway driving.
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