Car Rental Cost Calculator

1. 01Enter the base rate and daysChoose a daily or weekly rate, type the rate, and set how many days you are renting for. A weekly rate is spread evenly across seven days.
2. 02Add the per-day extrasEnter insurance per day and an additional-driver fee per day if they apply. The tool multiplies each by the number of days.
3. 03Add the flat feesInclude a one-way drop fee, an airport surcharge, and an estimate for fuel you expect to buy or pay back.
4. 04Set the taxEnter the tax percentage that applies to the rental. It is applied to the base plus the add-ons.
5. 05Compare and copyRead the total and the effective cost per day, then copy the breakdown to compare against another quote.

• Comparing two quotesA low daily rate with high insurance can cost more than a higher rate with insurance included. Enter both to compare like for like.
• Budgeting a road tripFold the true rental total, including fuel, into the wider trip budget so there are no surprises at the counter.
• One-way rentalsA drop fee for returning the car in a different city can be large. Add it here to see the real cost of the convenience.
• Sharing the carAdd a second-driver fee, then split the total between travelers with the trip cost splitter.

• 45 a day for 7 days with extrasBase 315, insurance 15 a day (105), extra driver 10 a day (70), one-way 60, airport 25, fuel 70, then 12% tax on the lot gives a total around 823, or roughly 118 a day.
• A weekly rateA 210 weekly rate over 7 days is 210 base. Over 10 days it pro-rates to 300 (210 divided by 7, times 10).
• Insurance flips the winnerA 30 a day car with 25 a day insurance costs more than a 45 a day car with insurance included, once the days add up.

• Read the insurance line carefullyCounter insurance is usually priced per day and can rival the car itself. Enter it per day so the total reflects the real cost.
• Estimate fuel honestlyFull-to-full is cheapest; prepaid fuel and refuelling charges are not. Use the road trip fuel cost calculator for a realistic fuel figure.
• Watch the young or extra driver feeAdditional-driver and under-25 fees are per day and add up fast on a long rental. Include them if they apply to you.
• Enter your own tax rateRental tax varies by location and airport. Use the rate on your quote rather than a guess.

The base rental is the daily rate times the days, or the weekly rate divided by seven and multiplied by the days. Insurance and any additional-driver fee are multiplied by the number of days. The one-way drop fee, airport surcharge, and estimated fuel are added as flat amounts. The tax percentage is applied to the base plus all the add-ons, and the effective cost per day is the final total divided by the number of days.

Inputs are the rate and its mode, the number of days, insurance and extra-driver fees per day, a one-way fee, an airport surcharge, estimated fuel, and a tax percentage. Outputs are the base rental, the add-ons subtotal, the tax amount, the grand total, and the effective cost per day. The tool assumes the weekly rate spreads evenly across seven days and that tax applies to base plus add-ons. It does not model deposits, loyalty discounts, or currency conversion.

The gap between an advertised rate and the amount you actually pay is almost always the add-ons. Per-day insurance, a second driver, airport location fees, and one-way charges can add up to more than the car itself on a long rental. Seeing them as a single total, and as a cost per day, makes it far easier to judge whether a deal is genuinely cheap.

A common mistake is comparing two quotes on the base rate alone while ignoring insurance and fees. Another is leaving fuel out, since refuelling charges can be steep. The tool uses only the rates you enter, so it makes no claim about typical or average prices, and it is not connected to any rental company or booking site.

Everything runs in your browser. The rates and results are not uploaded, not saved to storage, and not sent to analytics beyond a general usage signal. Refreshing the page clears everything.

Does it use real rental company prices?

No. There are no company rates and no live prices. You enter every figure from your own quote, so the total reflects that specific offer.

How is a weekly rate handled?

A weekly rate is divided by seven to get a daily equivalent and then multiplied by the number of days, so partial weeks are pro-rated.

Is insurance included in the total?

Only if you enter it. Add your insurance per day and it is multiplied by the number of days and included in the total and the cost per day.

Does the tax apply to the add-ons too?

Yes. The tax percentage is applied to the base rental plus all the add-ons, which is how rental tax usually works.

Can I compare two quotes?

Yes. Enter one quote, copy the breakdown, then enter the other. Comparing the true totals and the cost per day is fairer than comparing base rates.

Is my data saved?

No. Nothing is stored or uploaded, and refreshing the page clears your inputs.