Road trip budgeting
Know your trip cost before you go.
Fuel, stays, food, tolls — calculated in seconds and split fairly across every traveller. No sign-up, no backend, shareable with one link.
total = fuel + (days × daily) + tolls · per_traveller = total ÷ travellers
The Trip Calculator
The Trip Calculator helps you estimate road trip costs fast—fuel, daily expenses, tolls, and parking—so your group can split the total fairly and confidently. This free gas trip calculator is designed for real-world planning: enter the one-way distance, add your number of travellers, and provide a simple per-vehicle mileage (km/l) and fuel price. The calculator then uses that data to compute estimated fuel for each vehicle and combines it with your daily stays and food spend. If your route includes toll roads or parking, add those optional extras to get a complete gas cost trip calculator breakdown.
Whether you’re using a road trip calculator for a weekend getaway or a longer journey, the Trip Calculator gas buddy style experience keeps things simple. You can update inputs instantly as you type, which makes it easy to try different scenarios—cheaper fuel price, different mileage, or adding an extra car. The output includes a clear trip summary and a visual donut breakdown so you can see how much of the total comes from fuel versus daily expense versus tolls & parking. That means fewer back-and-forth messages in the group chat, because everyone can reference the same shared assumptions.
One of the most useful parts of this trip calculator gas workflow is the shareable link. Every input you enter—route (from/to), distance, days, travellers, daily expense, tolls & parking, vehicle mileage, and fuel price—is encoded directly in the URL. Copy one link and your whole group can reopen the exact same calculation with pre-filled values. There’s no sign-up, no backend, and nothing uploaded anywhere—your numbers stay on your device. You can use it as a gas road trip calculator for planning and then share the final budget when you’re ready.
The Trip Calculator is also built for practical fairness. Fuel is computed per vehicle using the standard formula: distance ÷ mileage × fuel price per litre. When you add multiple vehicles, the calculator sums the fuel costs across vehicles, then splits the combined total evenly across travellers. This helps prevent confusion at the petrol pump, because each person’s estimate is derived from the same trip calculator method.
Need a quick view of cost per day or cost per km? The results section provides per-traveller, per-day, and per-km figures that update live. That makes it useful for budgeting with friends or comparing routes. If you prefer to print instead of sharing a link, you can also generate a clean summary for Print / Save PDF.
In short: this gas trip calculator turns your trip details into a structured budget—fast. It supports multiple vehicles, multiple currencies for display only (no conversion), and shareable links that keep every member of the group on the same page. Whether you call it a trip calculator, road trip calculator, fuel trip calculator, or gas cost trip calculator, the goal is the same: help you estimate the real cost of your journey and split it fairly.
The math
Split it fairly. Every time.
Fuel is computed per vehicle from distance, mileage and local fuel price, then pooled with daily expenses and tolls. The total divides evenly across travellers — so nobody argues at the petrol pump.
# per vehicle
fuel[i] = (distance / mileage[i]) × price[i]
# whole trip
fuel_total = Σ fuel[i]
stay_food = days × daily_expense
extras = tolls + parking
# the number that matters
per_traveller = (fuel_total + stay_food + extras) / n