1. What is the Petrol Cost Calculator?

This calculator helps you estimate how much you'll spend on petrol for a journey based on your car's fuel efficiency and current petrol prices.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Journey — Distance of your trip in kilometers
• Car Efficiency — Your vehicle's fuel efficiency in kilometers per liter
• Petrol Price — Current cost of petrol per liter

Explanation: The formula calculates how many liters of petrol you'll need for your journey, then multiplies by the cost per liter.

3. Importance of Calculating Petrol Costs

Details: Knowing your expected petrol costs helps with journey planning, budgeting, and comparing different transportation options.

4. Using the Calculator

Tips: For accurate results, use your car's actual fuel efficiency (from trip computer or manual calculations) and current local petrol prices.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my car's actual efficiency?
A: Reset your trip meter when filling up, then divide kilometers driven by liters used at next fill-up.

Q2: Does this account for traffic conditions?
A: No, for city driving with lots of stops, you may want to reduce your efficiency estimate by 10-20%.

Q3: Should I include highway and city driving separately?
A: For mixed driving, use a weighted average. Many cars show separate efficiency figures for city/highway.

Q4: How often should I update my efficiency figure?
A: Recalculate every few months or if you notice significant changes in your driving patterns.

Q5: Does this include other vehicle costs?
A: No, this only calculates petrol costs. Maintenance, depreciation, and other costs aren't included.