Road Trip Fuel & Time Calculator
Drive time, fuel stops and total cost for any route.
Enter your values
Enter the trip distance in mi.
Enter the average speed in mph.
Enter the vehicle mpg in mpg.
Enter the fuel price in $/gal.
Enter the usable tank size in gal.
Enter the people sharing the cost you are working with.
Enter the break time per 2 hours in min.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Total trip time
- 11 h 15 min
- Fuel cost
- $77.50
- Cost per person
- $19.38
- Fuel needed
- 22.1 gal
- Fuel stops
- 1
- Range per tank
- 364 mi
- Driving time only
- 10 h
Quick answer
Trip cost = distance ÷ MPG × fuel price, and driving time = distance ÷ average speed plus your planned breaks.
Fuel cost = (miles ÷ mpg) × price per gallon
At a glance
| What it does | Drive time, fuel stops and total cost for any route. |
|---|---|
| Category | Auto |
| Inputs needed | Trip distance, Average speed, Vehicle MPG, Fuel price, Usable tank size, People sharing the cost, Break time per 2 hours |
| Main output | Total trip time |
| Formula | Fuel cost = (miles ÷ mpg) × price per gallon |
| Cost | Free — no sign-up, no download |
How to use the Road Trip Fuel & Time Calculator
- 1Enter the route distance from your map app.
- 2Use a realistic average speed — motorway trips average 60–65 mph including slow sections.
- 3Enter MPG, fuel price and how many people are splitting the cost.
Inputs explained
- Trip distance(mi)
- Enter the trip distance in mi.
- Average speed(mph)
- Enter the average speed in mph.
- Vehicle MPG(mpg)
- Enter the vehicle mpg in mpg.
- Fuel price($/gal)
- Enter the fuel price in $/gal.
- Usable tank size(gal)
- Enter the usable tank size in gal.
- People sharing the cost
- Enter the people sharing the cost you are working with.
- Break time per 2 hours(min)
- Enter the break time per 2 hours in min.
Worked example
Using the values the calculator loads with:
Inputs
- Trip distance620 mi
- Average speed62 mph
- Vehicle MPG28 mpg
- Fuel price3.50 $/gal
- Usable tank size13 gal
- People sharing the cost4
- Break time per 2 hours15 min
Results
- Total trip time11 h 15 min
- Fuel cost$77.50
- Cost per person$19.38
- Fuel needed22.1 gal
- Fuel stops1
- Range per tank364 mi
- Driving time only10 h
Frequently asked questions
How often should I stop?
Every two hours or 100 miles is the standard advice for staying alert; the calculator adds that break time to your total automatically.
Why is my real MPG lower?
Speed, roof boxes, luggage weight and air conditioning all cut economy — above 70 mph, drag alone can cost 10–15%.
What do I need to enter into the Road Trip Fuel & Time Calculator?
Just 7 values: trip distance, average speed, vehicle mpg, fuel price, usable tank size, people sharing the cost, break time per 2 hours. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Road Trip Fuel & Time Calculator work out the answer?
Trip cost = distance ÷ MPG × fuel price, and driving time = distance ÷ average speed plus your planned breaks. It applies the formula Fuel cost = (miles ÷ mpg) × price per gallon and shows the working so you can check each step by hand.
Is the Road Trip Fuel & Time Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.