Iceland Driving & Fuel Cost Planner
Pick a route preset or enter your own distance, choose a vehicle type, and see fuel cost and the 2026 kilometer road tax broken out separately, since most older guides still don't account for the tax.
Calculate your fuel cost
Estimated total for this route
$0
See this route in a different vehicle
| Vehicle | Fuel cost | Road tax | Total |
|---|---|---|---|
| Economy car | $0 | $0 | $0 |
| SUV / 4x4 | $0 | $0 | $0 |
| Campervan | $0 | $0 | $0 |
What this is built from
- Default fuel price of $1.77 per liter reflects the August 2026 national average for 95-octane gasoline; prices vary by station and change weekly, so the field is editable. Diesel defaults to $1.85 per liter, roughly $0.08 more, per current published Iceland fuel guides.
- The kilometer road tax replaced part of Iceland's fuel tax on January 1, 2026. Default rate of $0.06/km sits in the middle of current published estimates (roughly 6.95 ISK/km, or about $0.05–$0.07 depending on exchange rate and how a given rental company bills it).
- Vehicle consumption figures are typical published averages for each vehicle class on mixed paved Icelandic roads; actual consumption varies with driving style, wind, and load. Turn on the wind/gravel/weather buffer above for a more conservative estimate. A specific fuel-efficient model within a class, a Toyota RAV4 or Dacia Duster in the SUV/4x4 category, for example, may use meaningfully less than this class average; check your actual vehicle's rated consumption if you want a tighter number.
Rates last reviewed: August 20, 2026. See Sources below.
These figures are estimates for planning purposes, not a quote. Confirm real prices with providers before booking.
The 2026 kilometer road tax, explained
As of January 1, 2026, Iceland moved part of its road funding off fuel taxes and onto a distance-based charge that applies to every vehicle on the road, rental cars included. That's why pump prices in 2026 are noticeably lower than in 2025, but a new line item now shows up on rental invoices calculated from your odometer reading, usually billed as a flat daily fee of roughly 1,400 to 1,550 Icelandic krona, or settled directly against your actual kilometers at drop-off. Several older guides written before 2026 still describe fuel cost alone as the full transport picture. It isn't anymore, which is exactly why this planner breaks the two out separately instead of folding them into one number.
Sources
- GlobalPetrolPrices.com, Iceland gasoline and diesel prices, August 2026
- Reykjavik Cars, "How Much Are Gas Prices in Iceland in 2026?", July 2026
- Hertz Iceland, kilometer road tax explainer and billing example, March 2026
- Guide to Iceland, "How Much Does It Cost to Rent a Car in Iceland?", July 2026
- Northbound, kilometer fee overview, 2026
- Backpacking Is Life, "Renting A Car In Iceland: Complete 2026 Guide", May 2026
- DailyFuels, Iceland gasoline and diesel prices, July 27, 2026 (diesel vs petrol pricing)
- Reykjavik Cars, Iceland gasoline and diesel price ranges, July 2026
Frequently asked questions
What is Iceland's new kilometer road tax?
Starting January 1, 2026, Iceland replaced part of its fuel tax with a distance-based road usage charge, roughly 6.95 ISK per kilometer, applied to all vehicles including rental cars. Rental companies typically collect it as a flat daily fee of about 1,400 to 1,550 ISK, or calculate it from your odometer reading at drop-off. Pump prices dropped to partly offset this, so the net cost is often similar to before, but it now shows as a separate line item on your rental invoice.
How much gas do I need for the Ring Road?
Iceland's Ring Road (Route 1) runs about 1,332 kilometers. An economy car averaging 7 liters per 100 kilometers uses roughly 93 liters for the full loop, which at current gasoline prices comes to somewhere in the 160 to 175 US dollar range before the road tax, not counting detours to specific sights along the way.
Why might my real fuel cost be higher than this estimate?
Vehicle consumption figures here reflect typical published averages on mixed paved roads. Iceland's actual driving conditions, persistent headwinds, sections of gravel road, and winter weather, commonly push real consumption above that spreadsheet number. Check the wind, gravel, and weather buffer above if you want a more conservative estimate.