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Tool: Gas Mileage Calculator — Calculate Vehicle MPG & L/100km | Printed on:
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Gas Mileage Calculator — Calculate Vehicle MPG & L/100km
Calculate actual fuel efficiency (MPG) from odometer readings and fill-up gallons.
AI Generated Visual
UTILITY COMPUTATION
More in Transportation & Travel:
Trip & Mileage Specifications
Fuel Economy Formula
Transparent mathematical methodology explained in plain English.
MPG = (Odometer Ending - Odometer Beginning) / Gallons Pumped Calculates true average fuel efficiency between full tank fill-ups.
Variables Explained:
- Miles Traveled: Distance driven on full tank.
- Gallons: Volume pumped to return tank to full.
Real Project Example
342 miles driven on 11.8 gallons of gasoline
Fill-up calculation.
Sample Project Inputs:
Miles: 342
Gallons: 11.8
Step-by-Step Calculation:
- MPG = 342 / 11.8 = 28.98 MPG.
- Equivalent metric: ~8.12 Liters / 100 km.
Calculated Answer: 29.0 US MPG (8.1 L/100km).
Knowledge Base
Frequently Asked Questions: Gas Mileage Calculator
Click any question below to expand quick answers, formulas, and expert tips.
How do I accurately calculate my car’s gas mileage?
Fill your tank completely and record your odometer reading. Next time you fill up, divide the miles driven by the exact gallons required to fill the tank back up.