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Fuel Efficiency Calculator

Measure your vehicle's fuel efficiency in MPG, km/L, or L/100km. Track how efficiently your car uses fuel and discover actionable ways to improve it.

Fuel Calculator ایندھن کیلکولیٹر

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What is Fuel Efficiency?

Fuel efficiency refers to how effectively your vehicle converts fuel into distance traveled. A more fuel-efficient car travels more miles (or kilometers) per gallon (or liter) of fuel, resulting in lower running costs and reduced emissions.

Fuel efficiency is the key metric for comparing vehicles, planning fuel budgets, and reducing your carbon footprint. Use our fuel efficiency calculator to measure your real-world efficiency versus the manufacturer's rated figure.

Fuel Efficiency Formula

Fuel Efficiency (km/L) = Distance (km) ÷ Fuel Used (L)

Fuel Efficiency (MPG) = Miles Driven ÷ Gallons Used

Example: 300 km ÷ 20 L = 15 km/L

Fuel Efficiency Ratings Guide

⭐⭐⭐⭐⭐ Excellent

Above 40 MPG / 17+ km/L

Hybrids, economy cars. Very low running costs.

⭐⭐⭐⭐ Good

30–40 MPG / 12–17 km/L

Compact sedans. Below-average fuel costs.

⭐⭐⭐ Average

22–30 MPG / 9–12 km/L

Midsize cars. Typical for most drivers.

⭐⭐ Below Average

15–22 MPG / 6–9 km/L

SUVs, minivans. Higher than average fuel costs.

⭐ Poor

Below 15 MPG / Under 6 km/L

Large trucks, muscle cars. High fuel costs.

Frequently Asked Questions

What is fuel efficiency?

Fuel efficiency measures how far your vehicle travels per unit of fuel (MPG or km/L). Higher = more efficient = lower cost per mile.

How do I calculate fuel efficiency?

Divide distance by fuel used. 300 km ÷ 20 L = 15 km/L. Or 300 miles ÷ 10 gallons = 30 MPG. Use the calculator above for instant results.

What reduces fuel efficiency?

Aggressive driving, under-inflated tires, idling, high speeds, excess weight, and poor engine maintenance all reduce fuel efficiency.