Fuel economy is measured differently worldwide: L/100km in Europe, MPG in USA/UK. Lower L/100km or higher MPG means better efficiency.
Fuel Consumption Calculator
Our fuel consumption calculator helps you understand and optimize your vehicle's fuel efficiency. Calculate actual fuel consumption from distance and fuel used, estimate trip costs, compare different vehicles, and see your environmental impact with CO2 emission calculations. Works for cars, motorcycles, and trucks.
star
4.9
calendar_today
Updated: April 2025
auto_awesome
AI Insights
AI
New
km
L
L/100km
L
$
/L
Fuel Consumption
8.0
L/100km
speed
29.4 MPG
|
12.5 km/L
Eco Rating
Good fuel efficiency
C
Trip Cost
$
60.00
$0.12/km
CO₂ Emissions
92.8
kg
eco
4 trees to offset
Maximum Range
625
km
lightbulb Fuel Saving Tips
- • Maintain steady speed (80-100 km/h)
- • Check tire pressure regularly
- • Avoid aggressive acceleration
auto_awesome AI Analysis
Powered by ClaudeEnter your values and calculate to receive AI-powered insights about your results.
local_gas_station Fuel Economy Ratings
Excellent
>40 MPG
Good
30-40 MPG
Average
20-30 MPG
Poor
<20 MPG
eco Fuel Saving Tips
- 🚗 Steady speed saves 10-15%
- 🛞 Proper tire pressure: +3% MPG
- ❄️ A/C reduces MPG by 5-25%
How to Use This Calculator
1
Select Mode
Choose to calculate consumption or estimate range
2
Choose Units
Select metric (L/100km) or imperial (MPG)
3
Enter Trip Data
Input distance traveled and fuel used
4
Add Fuel Price
Enter current fuel price for cost calculation
5
View Results
See consumption, cost, and environmental impact
The Formula
Fuel consumption measures how much fuel a vehicle uses over a given distance. Lower L/100km or higher MPG indicates better fuel efficiency. To convert: MPG = 235.215 ÷ (L/100km).
Consumption (L/100km) = (Fuel Used ÷ Distance) × 100
lightbulb Variables Explained
- L/100km Liters of fuel per 100 kilometers
- MPG Miles per gallon (US)
- km/L Kilometers per liter
tips_and_updates Pro Tips
1
Track your fuel consumption over multiple fill-ups for accurate averages
2
Driving at steady speeds (80-100 km/h) typically gives best fuel economy
3
Proper tire pressure can improve fuel efficiency by 3%
4
Remove excess weight and roof racks when not needed
5
Air conditioning increases fuel consumption by 10-20%
6
Aggressive driving (rapid acceleration/braking) wastes fuel
7
Regular maintenance (oil changes, air filters) maintains efficiency
Track your consumption, maintain your vehicle, drive smoothly, and compare routes to find savings. Even small improvements add up over time.
Frequently Asked Questions
Related Tools
View all Engineering View all arrow_forward
sell
Tags
verified
Data sourced from trusted institutions
All formulas verified against official standards.