How do I calculate my car's MPG?

Enter the distance traveled and the fuel used (in gallons) into the calculator. It will automatically compute your miles per gallon (MPG) by dividing distance by fuel used.

Can I use liters and kilometers?

Yes, the calculator supports metric units. Enter distance in kilometers and fuel used in liters to get fuel economy in L/100km, along with trip fuel cost and cost per kilometer.

What is cost per mile?

Cost per mile is the total fuel cost for your trip divided by the distance traveled. It helps you understand the fuel expense for each mile driven.

Automotriz

Instantáneo, privado y gratis

Calculadora de Rendimiento de Combustible.

4 ago 2026

Calcula el rendimiento de combustible de tu auto en MPG, L/100km y el costo de combustible del viaje.

Cálculo en el dispositivoSin registro

Introduce tus valores

Los resultados se actualizan al escribir.

02 / RESPUESTA

Measurement System

Distance Traveled

Fuel Used

Fuel Price

Como usar

Enter the distance you drove, the fuel you used, and the fuel price to compute your vehicle's fuel economy and the cost of the trip.

Calculadoras relacionadas

Fuel Economy CalculatorCalculate MPG and fuel costs for trips EV vs Gas Car Cost CalculatorCompare total cost of ownership between electric and gasoline vehicles Drive Time CalculatorEstimate driving time from distance and average speed, with stops included.Carbon Footprint CalculatorEstimate your annual CO2 emissions and environmental impact EV Charging Cost & Trip PlannerEstimate home vs public EV charging costs, charging duration, and trip expenses per mile or km Car Loan CalculatorCalculate auto loan payments and interest

Cite this calculator

Canonical URL: https://mathify.one/es/automotive/gas-mileage

Updated 4 ago 2026

Cite as: Mathify. (2026). Calculadora de Rendimiento de Combustible. https://mathify.one/es/automotive/gas-mileage

Use Cases

Track Your Vehicle's Fuel Efficiency

Monitor your car's MPG or L/100km over time to identify changes in fuel economy, which can indicate maintenance issues or driving habit impacts.

Example: After a road trip, enter 300 miles and 10 gallons to see your MPG.

Budget for a Trip

Estimate the total fuel cost for an upcoming journey by entering the expected distance, your vehicle's typical fuel consumption, and current fuel price.

Example: Plan a 500-mile trip with a car that gets 25 MPG and gas at $3.50/gallon.

Frequently Asked Questions

How do I calculate my car's MPG?: Enter the distance traveled and the fuel used (in gallons) into the calculator. It will automatically compute your miles per gallon (MPG) by dividing distance by fuel used.
Can I use liters and kilometers?: Yes, the calculator supports metric units. Enter distance in kilometers and fuel used in liters to get fuel economy in L/100km, along with trip fuel cost and cost per kilometer.
What is cost per mile?: Cost per mile is the total fuel cost for your trip divided by the distance traveled. It helps you understand the fuel expense for each mile driven.

Tips & Common Mistakes

Tips

For accurate MPG, fill your tank completely, reset your trip odometer, and record the distance and fuel needed to refill next time.
Use the same units (imperial or metric) for both distance and fuel to avoid calculation errors.
Check your tire pressure regularly; under-inflated tires can lower fuel economy.
Compare your calculated MPG with the EPA rating for your vehicle to spot potential issues.

Common Mistakes to Avoid

Mixing units, such as entering miles with liters, which leads to incorrect results.
Using the fuel price per gallon when you entered fuel in liters, or vice versa.
Forgetting to include the fuel used for the entire trip, not just a portion.

Last updated: August 13, 2026