When planning a trip—whether it’s a weekend getaway or a cross-country drive—fuel costs are one of the biggest expenses to consider. Instead of estimating and risking budget surprises, you can use free fuel cost calculators to get a more accurate idea of what you’ll spend. These tools help you factor in vehicle fuel efficiency, route mileage, and average gas prices, making it easier to plan and save.

Here are the best fuel cost calculators you should be using before hitting the road.

1. AAA Gas Cost Calculator

The AAA Gas Cost Calculator is one of the most trusted and user-friendly tools available. It uses current gas price data across the U.S. and allows you to input your starting location, destination, vehicle type, and route preferences.

• Pros: Real-time gas price data, simple interface, multiple vehicle types
  
• Best for: Long-distance travel and route comparisons
  

2. GasBuddy Trip Cost Calculator

GasBuddy’s Trip Cost Calculator estimates fuel expenses by combining your vehicle’s MPG with live gas prices along your route. You can also search for the cheapest gas stations nearby and calculate how much you’ll save by stopping at specific locations.

• Pros: Integrated with gas price tracking, visual route display
  
• Best for: Drivers who want to optimize refueling stops and compare local prices
  

3. Fuel Economy My Trip Calculator

Offered by the U.S. Department of Energy, the My Trip Calculator lets users compare fuel usage and cost for different vehicles based on official MPG ratings. It’s especially helpful if you’re deciding which car to take on your trip or comparing rental car options.

• Pros: Government-backed MPG data, includes hybrid/electric options
  
• Best for: Fuel-conscious families or road trippers comparing vehicle efficiency
  

4. Route4Me Route Planner with Fuel Estimator

Route4Me is primarily designed for delivery and logistics planning, but its fuel estimator feature can be helpful for anyone planning multi-stop trips. It calculates estimated fuel consumption based on stop count, distance, and routing preferences.

• Pros: Multi-stop support, fuel tracking for complex itineraries
  
• Best for: Road trips with multiple destinations or delivery drivers
  

5. ViaMichelin Route Planner

ViaMichelin provides a comprehensive trip planner that includes estimated fuel costs, toll charges, and travel time. It also allows for different vehicle types and fuel types, giving international drivers a global tool for trip budgeting.

• Pros: Includes tolls and additional fees, available for Europe and North America
  
• Best for: International travel planning or toll road budgeting
  

Bonus Tip: Pair with Cashback Tools

After calculating your estimated fuel spend, consider how to reduce that cost further. Apps like Fluz allow you to earn cashback with gas gift cards at stations like BP, Chevron, and RaceTrac. You can use Fluz to purchase gift cards for the exact amount estimated and immediately save money at the pump.

Plan Smarter, Drive Cheaper

Using a fuel cost calculator before your trip gives you more control over your travel budget. Whether you’re trying to choose the best route, find the cheapest gas stations, or decide which car to drive, these tools make it easier to avoid surprises and drive efficiently.