Calculadora de Custo de Viagem (Combustível)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
custo = (distância / km/L) × preço/L
About this calculator
The Travel Cost Calculator (Fuel) is a practical tool to estimate fuel expenses for trips. Simply enter the total distance to be traveled, the vehicle's average fuel consumption in kilometers per liter, and the current fuel price. The calculation is straightforward: divide the distance by the consumption and multiply by the price per liter, resulting in the total cost in your currency.
This calculator is useful for drivers planning car trips, whether for leisure or work. It allows comparing costs between different vehicles or routes, aiding financial decisions. For example, when planning a trip from São Paulo to Rio de Janeiro, you can enter the distance (approximately 430 km), your car's consumption (12 km/l), and the gas price (R$ 6.00) to get the estimated cost.
Keep in mind that the result is an estimate, as actual consumption may vary due to factors like traffic, road conditions, vehicle load, and driving style. Additionally, fuel prices can change by region and gas station. It is recommended to use average consumption values (measured in mixed conditions) and check the local price before the trip.
The tool can also be used to calculate the cost of specific segments or to compare fuel costs versus other transport options like bus or plane. Remember that it only considers fuel costs, not tolls, food, or accommodation. For a complete travel budget, these other expenses should be added separately.
Frequently asked questions
How do I calculate my car's average fuel consumption?
Fill the tank, reset the odometer, and drive normally. When refueling, note the distance traveled and liters filled. Divide distance by liters to get km/l.
Does the result consider fuel price changes along the route?
No, it uses the price you entered. If prices vary, actual cost may differ. For accuracy, use the average price in the region.
Can I use the calculator for any fuel type?
Yes, just enter the price of your fuel: gasoline, ethanol, diesel, etc. Use the consumption corresponding to that fuel.
Does the calculator include tolls and other costs?
No. It only calculates fuel costs. Tolls, food, accommodation, and vehicle wear should be added separately.
What is the difference between city and highway consumption?
City consumption is lower due to stops and traffic, while highway consumption is more efficient. Use combined consumption (average of both) for realistic estimates.