

How to Calculate Car Mileage and Trip Fuel Expense Step-by-Step
What is Gas Mileage Calculator?
A Gas Mileage Calculator is a handy maths tool designed to instantly determine how much you will spend on fuel for your journey. By simply entering your travel distance, your vehicle’s mileage, and the current fuel price, you get real-time answers within seconds.
This interactive tool is extremely useful for students, parents, and drivers to apply real-life arithmetic and practice rate, ratio, and percentage concepts while planning road trips or daily commuting.
Formula Behind Gas Mileage Calculator
The standard calculation follows: Total Fuel Needed = Distance ÷ Mileage; Total Fuel Cost = (Distance ÷ Mileage) × Fuel Price per Litre. For example, if you drive 200 km with 20 km/l mileage and ₹100/litre fuel price, you will need 10 litres and spend ₹1,000.
Gas Mileage & Fuel Cost Conversion Table
Distance (km) | Mileage (km/l) | Fuel Price (₹/l) | Fuel Needed (l) | Total Cost (₹) |
---|---|---|---|---|
100 | 20 | 100 | 5.00 | 500 |
200 | 15 | 95 | 13.33 | 1,266 |
500 | 18 | 110 | 27.78 | 3,056 |
Steps to Use Gas Mileage Calculator
- Enter the distance you want to travel or have traveled.
- Enter your car’s mileage (e.g., kmpl, mpg, or l/100km).
- Enter the current fuel price per litre or gallon.
- Click “Calculate” to see your total fuel cost, cost per mile/km, or distance per fixed budget.
- Enter your travel distance in kilometers.
- Type in your vehicle’s fuel efficiency (km/litre).
- Add current petrol or diesel price per litre.
- Press the "Calculate" button.
- Read your instant fuel needed, total cost, and cost per kilometer.
Why Use Vedantu’s Gas Mileage Calculator?
Vedantu’s tool is fully mobile optimized, clutter-free, and gives instant results for trip budgeting. Students get stepwise maths logic and see exactly where each answer comes from—making real-world word problems easier.
Perfect for planning pocket expenses, preparing for competitive maths, and learning unit conversions. All formulas align with CBSE, ICSE, and global curriculum. Trust accuracy that is teacher-reviewed and used by lakhs of students for exams and real applications.
Applications of Gas Mileage Calculator
This calculator helps plan family road trips, daily commutes, or carpool costs efficiently. Instantly know your fuel needs and budget allowance before you hit the road—or when solving ratio and percentage word problems.
It is also valuable for understanding eco-friendly driving, comparing vehicles, or optimizing routes. Teachers use these real-life cases in class, and students can connect their maths concepts to everyday decisions.
For further mathematics practice, try our Percentage Calculator, HCF Calculator, and explore detailed word problems at Algebra Topics. Deepen number logic with Prime Numbers or learn more about Multiples in Maths.
For reliable fuel comparisons by models worldwide, refer to the official EPA Fuel Economy guide.
FAQs on Gas Mileage Calculator: Find Your Fuel Efficiency and Costs
1. How do I calculate the fuel cost for a road trip using Vedantu's gas mileage calculator?
2. What is the formula for calculating gas mileage in kilometers per liter (km/l)?
3. How can I use the gas mileage calculator to determine how far I can travel with a fixed fuel budget?
4. What are the different units of measurement used for gas mileage, and how do they relate to each other?
5. How accurate is Vedantu's gas mileage calculator, and what factors can affect its accuracy?
6. What is the difference between gas mileage and fuel economy?
7. Why is it important for students to understand gas mileage calculations?
8. Can I use Vedantu's gas mileage calculator for planning a long road trip across India?
9. How does the gas mileage calculator help in comparing the fuel efficiency of different vehicles?
10. Are there any limitations to using Vedantu's gas mileage calculator?
11. How does knowing my car's gas mileage help me save money on fuel?











