MultiConvers

Road Trip Cost Calculator

Plan a drive in kilometres and litres per 100 km: fuel volume, fuel cost, optional tolls and parking, then a single total. Hotels, food and tyre wear are not on the form. This is Fuel Cost plus two cash extras — not miles and not MPG.

How to use

  1. Enter trip distance in km, consumption in L/100 km, and the pump price per litre.
  2. Optionally add tolls and parking as cash amounts. Leave them blank for zero.
  3. Read litres required, fuel cost, extras, and the total (fuel + extras).
  4. If your handbook is in MPG, convert with MPG to L/100 km first. For fuel only with no extras, Fuel Cost is the same first three fields.

How it works

Litres = (km ÷ 100) × L/100 km. One hundred kilometres at 8 L/100 km is 8 litres. At 1.50 per litre the fuel line is 12. Tolls of 10 and parking of 5 add 15 extras; the total is 27. Blank extras are zero, so the same trip without those fields is 12 — identical to the dedicated Fuel Cost page.

The extras boxes are unlabelled cash, not a hotel catalog. If you want a rougher grand total you can park other cash in those fields; the page will not itemise “dinner.” It also will not add depreciation, insurance per day, or a second driver. Call it a pump-and-booth estimate.

Units stay metric. There is no miles toggle and no MPG field. US or Imperial MPG must become L/100 km on the converter before you type consumption here. Mixing a US-gallon MPG into this form as if it were L/100 km will invent a nonsense litre count.

Cost Per Kilometer is the other direction: you already know a total and a distance and want cost ÷ km. This page builds the total from consumption. A 300 km trip that you later find cost 45 is 0.15 /km on that tool; here you would have predicted the 45 from L/100 km and price (plus extras).

Highway consumption is often lower than the city figure on the same car. Use the number that matches the roads you will actually drive, or run the trip twice — once at the handbook combined figure, once at a pessimistic winter or mountain number — and treat the gap as the planning uncertainty, not as a second fee the form forgot.

Formula

Litres = (distance km ÷ 100) × L/100 km
Fuel cost = litres × price per litre
Extras = tolls + parking
Total = fuel cost + extras

Worked examples

  • 100 km with extras

    100 km, 8 L/100 km, 1.50 / L, tolls 10, parking 5 → 8 L, fuel 12, extras 15, total 27

  • Fuel only

    100 km, 8 L/100 km, 1.50 / L → total 12

Useful notes

  • Tolls and parking are optional. Blank is treated as 0.
  • Not a full holiday budget — fuel and the extras you type, nothing else.
  • Kilometres and L/100 km only. Convert MPG before you enter consumption.

FAQ

How is this different from the fuel cost calculator?

Fuel math is the same. This page also adds optional tolls and parking into one total.

Can I add hotels?

Not as a labelled field. You can put other cash in tolls or parking if you want a rougher grand total.

Does this use MPG?

No. Convert MPG to L/100 km first if your handbook is in miles per gallon.

Is a return trip double the distance?

Only if you type the round-trip kilometres. The page does not add a return leg for you.

Can I leave price at 0 to see litres only?

Yes. Fuel cost and total then reflect only the extras you typed (or 0). Litres still come from distance and L/100 km.

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