What fees should I include?

Common fees include collision damage waiver (CDW), liability insurance, GPS or navigation units, child or booster seats, additional driver fees, young driver surcharges (usually under 25), and airport pick-up surcharges. Check your rental agreement for exact line items.

How is the rental day count calculated?

Most rental companies charge per 24-hour period from the pick-up time. Even a partial extra day is usually billed as a full day. Enter the actual number of calendar days you plan to keep the vehicle.

Is fuel included in the calculation?

Fuel costs vary too widely by distance and driving habits for this calculator to estimate accurately. You can add a flat fuel surcharge in the one-time fees section if the rental includes a pre-purchased fuel option.

What tax rate should I use?

Car rental taxes vary by country and city. In the US they typically range from 10% to 30% depending on the state and whether you are picking up at an airport. Check your rental confirmation or local tax authority for the exact rate.

Does the calculator save my inputs?

Your inputs are not saved between sessions — all calculation happens locally in your browser and nothing is sent to any server.

Car Rental Cost Calculator

Enter your rental duration, daily rate, insurance, taxes, and extra fees to get an itemized total cost for your car rental.

Rental Details

Number of Rental Days

Base Daily Rate ($)

Insurance / CDW per Day ($)

Collision Damage Waiver, liability, etc. Leave at 0 if you have your own coverage.

Tax Rate (%)

Applied to rental and insurance subtotal. Airport taxes often 15–30%.

One-Time Extra Fees

Fill in the rental details and click Calculate Total Cost to see your breakdown.

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Summary

This car rental cost calculator helps you estimate the full out-of-pocket cost of renting a vehicle before you book. Enter your number of rental days, daily rate, optional insurance packages, applicable taxes, and any extra fees such as GPS, child seats, or additional drivers. The tool instantly totals every line item so there are no surprise charges at the counter.

How it works

Enter the number of rental days.
Type in the base daily rate quoted by the rental company.
Add optional insurance costs per day (collision, liability, etc.).
Set the tax rate percentage applied in your rental location.
Add any one-time fees such as GPS rental, additional driver, or young driver surcharge.
The calculator instantly shows a full itemized breakdown and grand total.

Use cases

Compare the true cost of two competing rental quotes side by side.
Budget accurately for a road trip without hidden fee surprises.
Determine whether the rental company insurance is worth adding versus using your own.
Estimate the per-day effective cost after taxes and fees are included.
Plan corporate travel reimbursements with an itemized cost breakdown.
Calculate the extra cost of adding a second driver to the reservation.

Frequently Asked Questions

Last updated: 2026-06-13 · Reviewed by Nham Vu