📖 Overview
Use this calculator to find out how much fuel you need and what your trip will cost.
🧪 Example Scenarios
Use these default and higher-pressure example inputs to explore how sensitive this calculator is before using your real numbers.
| Input | Base Case | Higher Pressure Case |
|---|---|---|
| Fuel Efficiency (L/100km) | 8 | 9.2 |
| Distance (km) | 250 | 287.5 |
| Fuel Price per Liter ($) | 1.85 | 2.22 |
⚙️ How It Works
Estimates how many liters of fuel a trip requires and what it will cost based on fuel price.
The Formula
Liters = (Efficiency × Distance) ÷ 100 | Cost = Liters × Price/Liter
💡Fuel efficiency varies by speed, load, and driving style. Highway driving is typically 20–30% more efficient than city driving.
Quick Reference
| Efficiency | 100 km | 250 km | 500 km | 1,000 km |
|---|---|---|---|---|
| 6 L/100km | 6 L | 15 L | 30 L | 60 L |
| 8 L/100km | 8 L | 20 L | 40 L | 80 L |
| 10 L/100km | 10 L | 25 L | 50 L | 100 L |
| 12 L/100km | 12 L | 30 L | 60 L | 120 L |
When To Use This
- Use this tool when you need a fast decision during active planning or execution.
- Use this before committing money, time, or tradeoffs that are hard to reverse.
- Use this to compare options using the same assumptions across scenarios.
Edge Cases To Watch
- Results can be misleading if key inputs are missing, stale, or unrealistic.
- Very small or very large values may amplify rounding effects and interpretation risk.
- If assumptions change mid-decision, recalculate before acting.
Practical Tips
💡 Factor in toll costs and parking for a complete trip budget.
💡 Reducing speed from 130 to 110 km/h can cut fuel use by 15–20%.
💡 Run a best-case, base-case, and worst-case scenario before deciding.
💡 Use recent real values, not ideal assumptions, for better accuracy.
Frequently Asked Questions
❓ What is a good fuel efficiency rating?
Under 7 L/100km is efficient; above 10 L/100km is high consumption for a passenger car.
❓ Does this work for electric vehicles?
No — EVs use kWh/100km, not liters. Use an EV-specific calculator for that.