Rental Duration Calculator - Car Hire Cost per Day & Week

Rental car costs consist of three components: the baseline vehicle time-and-mileage rate, mandatory government taxes and airport concession recovery fees (which often add 15% to 30%), and optional daily add-ons such as Loss Damage Waivers (LDW/CDW), supplemental liability insurance, additional driver fees, toll transponders, and GPS or child safety seat rentals.

Yes, very frequently. Most car hire agencies offer weekly rates that charge equivalent to 4.5 or 5 standard daily rates for a 7-day period. Furthermore, corporate discount codes (CDPs) and promotional coupons often require a minimum 5-to-7 day rental to activate. Always check the weekly rate quote before booking a 5-day or 6-day rental.

It depends on the rental station location. Airport and vacation destination branches often see high demand on Fridays through Sundays, imposing weekend surcharges or higher peak rates. Conversely, downtown corporate branches (which cater primarily to Monday-to-Thursday business travelers) frequently discount weekend leisure rentals by 20% to 40% to keep their fleet utilized.

Returning a vehicle on the same calendar day counts as 1 rental day. Rental companies bill for a minimum 24-hour cycle even if you only keep the car for 4 hours.

Rental insurance options (such as Collision Damage Waiver, Supplemental Liability Insurance, Personal Accident Insurance, and Roadside Assistance) are billed strictly per calendar day or per 24-hour rental block. An 8-day rental with a $15/day CDW will incur $120.00 in insurance premiums.

Most major car rental brands provide a 29-minute grace period past your scheduled return time without charge. Once you exceed 30 minutes, you will be billed an hourly late rate (typically 1/3 to 1/2 of the daily rate per hour). Exceeding 90 to 120 minutes automatically rolls over into a full additional day's charge at the standard rack rate, plus a full extra day of insurance.

Returning early does not always result in a lower price. If your booking qualified for a weekly rate discount (requiring a minimum of 7 days) and you return the vehicle on day 5, the rental agency will retroactively re-rate your contract to the higher, undiscounted daily rack rate, which can result in an unexpected balance due upon checkout.

The vast majority of standard car rentals in the United States, Canada, and Western Europe include unlimited mileage. However, cargo vans, box trucks (U-Haul, Penske), exotic sports cars, and certain specialty commercial vehicles often impose daily mileage caps (e.g., 100 to 150 miles/day) with overage fees of $0.25 to $0.75 per additional mile.