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TRIP COST – what will your car trip cost

Enter the distance, your average consumption and the fuel price, and TRIP COST instantly works out what the trip costs – in total, per kilometer and per person in the car. Works for petrol, diesel, LPG and electric vehicles.

  • Free, no sign-up
  • Petrol, diesel, LPG and electric
  • Splits the cost between passengers
  • Saved routes stay on your device only
  • Can be added to your phone's home screen like an app

Who it's for

For anyone who wants to know what a trip costs

See the real cost of a trip before you set off – for a one-off getaway or a route you drive every week.

Road trips

Work out the fuel for a drive to the coast or the mountains – round trip included with one switch.

Car sharing

The calculator splits the cost between everyone in the car, so it's clear who chips in how much.

Commuting

Save your regular route and load it any time, e.g. when fuel prices change.

Electric vehicles

Switch to Electric and enter consumption in kWh/100 km and the price per kWh.

Work trips

Copy the result or download it as a PDF or CSV for your own records.

Trip planning

Save a Google Maps or Mapy.cz link with the route so it's always at hand.

How it works

Four steps to the cost of your trip

  1. Pick the fuel type

    Petrol, diesel, LPG or electric. Units adjust automatically (l/100 km or kWh/100 km).

  2. Enter the route

    Distance in km, average consumption and the current fuel or electricity price. Flip the switch for a round trip.

  3. Add the details

    Number of people in the car and any extra costs, such as tolls, a vignette or parking.

  4. Get the result

    Total cost, cost per km, fuel used and the amount per person. Save, copy or export the route.

Worked example

How the app calculates – with real numbers

A 250 km trip in a petrol car using 6.5 l/100 km, with fuel at $1.60 per liter and 2 people in the car.

  1. Fuel used: 250 ÷ 100 × 6.5 = 16.25 l
  2. Fuel cost: 16.25 × 1.60 = $26.00
  3. Cost per kilometer: 26.00 ÷ 250 = $0.10
  4. Per person: 26.00 ÷ 2 = $13.00
  5. A round trip doubles the distance and the cost; extra costs are added to the total.

Result

  • Total$26.00
  • Fuel used16.25 l
  • Cost per km$0.10
  • Per person$13.00

That's exactly what TRIP COST works out for you – for any values, as you type.

Features

What the app does

Four fuel types

Petrol, diesel, LPG and electric, each with the right units.

Round trip

One switch doubles the distance and the cost.

Split per person

Divides the cost between 1 and 30 people in the car.

Extra costs

Tolls, vignettes, parking – added to the total.

Map link

Save a Google Maps or Mapy.cz link with the route.

Saved routes

Up to 12 favorite routes, loaded with one tap.

Copy and export

Copy the result into a message or save it as a PDF or CSV.

Route backups

Export routes to a JSON file and import them on another device.

Pick your currency

$, €, £, Kč or zł. Each saved route remembers its currency.

Home screen install

Add it to your home screen on Android or iPhone and open it like an app.

Tips

How to save fuel

A few general habits that really add up on a longer drive:

Drive smoothly

Look ahead, avoid unnecessary braking and hard acceleration. Smooth driving is one of the most effective savings.

Ease off on the highway

Air resistance grows quickly with speed, so even a few km/h slower makes a difference.

Check tire pressure

Under-inflated tires increase rolling resistance and consumption. Use the pressure your car maker recommends.

Lose the extra load

Take off a roof box or rack when you don't need it – it adds drag.

Use A/C sensibly

Both air conditioning and open windows at high speed increase consumption.

Share the ride

Car sharing splits the cost – TRIP COST shows what each person pays.

Data & privacy

What the app does and doesn't do

Where your data lives

  • Routes and your last inputs are stored only in your browser (localStorage).
  • No account, sign-up or login.
  • Your inputs are never sent anywhere – the calculation runs in your browser.
  • We count visits with GoatCounter – no cookies, no stored IP addresses.
  • The app doesn't use any maps API; a map link only opens when you tap it.
  • Move routes between devices with a backup (JSON file).
Privacy policy →

Good to know

  • Results are an estimate based on the values you enter.
  • Real consumption depends on driving style, terrain, weather and load.
  • You enter the distance yourself – the app doesn't plan routes.
  • It covers fuel and the extra costs you enter, not wear, insurance or servicing.
  • It isn't an official mileage or travel allowance calculator.
  • Routes don't sync between devices – back them up.

FAQ

Frequently asked questions

How much does TRIP COST cost?

Nothing. It's free, with no paid features and no sign-up.

How is the cost of a car trip calculated?

The distance is divided by 100 and multiplied by the consumption per 100 km, giving the amount of fuel used. This is multiplied by the price per liter or kWh, and any additional costs are added.

How do I find out my car’s fuel consumption?

You can find it in the vehicle registration document or on the on-board computer. As a guide: 6–8 l/100 km petrol, 5–7 l/100 km diesel, 15–20 kWh/100 km EV.

Does the calculator work for electric vehicles?

Yes. Switch the fuel type to Electric and enter the consumption in kWh/100 km and the price of electricity per kWh.

Can it split the cost between passengers?

Yes, enter the number of people in the car (1–30) and the cost per person is calculated automatically.

Where do I add tolls or parking?

In the Additional costs field. The amount is added to the total and reflected in the cost per km and per person.

Can I add it to my home screen?

Yes. On Android in Chrome the app offers to install itself; on iPhone, tap Share and then Add to Home Screen.

How do I move saved routes to another device?

In Saved routes, tap JSON to download a backup, then load it on the other device with Import.

Want to give it a try?

Open TRIP COST and work out your first trip. Nothing to install, nothing sent anywhere.

Open TRIP COST →