How much is gas in Iceland?

About 224.2 ISK a litre for 95-octane petrol right now, with the cheapest pumps around 198.3 and the dearest around 228.9. That is roughly $1.80 a litre, or $6.83 a US gallon. Diesel is dearer, at about 244.8 ISK a litre.

Prices are read from filling stations across Iceland and refreshed through the day, so the figure above is current rather than something written once and left. Below: what the 2026 tax change did to the pump price, what real drives cost, and where fuel is cheaper.

Diesel costs more than petrol here

Diesel currently runs about 244.8 ISK a litre against 224.2 for 95-octane petrol — roughly 20.6 ISK, or 9%, dearer. That catches people out, because in much of Europe the relationship is the other way round.

The pump price is not the whole story. A diesel engine typically uses a quarter to a third less fuel per kilometre, so over a long trip a diesel 4x4 can still work out cheaper to run than a petrol one despite the higher price on the sign. Over short distances it will not. Most larger Icelandic rental vehicles are diesel, so this is usually decided by what you booked rather than by choice at the pump.

Why Iceland's fuel got cheaper in 2026 — and driving did not

On 1 January 2026 Iceland moved most road taxation off the fuel pump and onto distance driven. Petrol fell by roughly a third overnight. If you are reading a guide that quotes 300 ISK a litre or more, it was written before that change and is now wrong.

The tax did not disappear, it moved. Every vehicle now pays a per-kilometre charge, and for a rental car it reaches you through the rental company. The statutory rate is 6.95 ISK per kilometre for cars and SUVs — that figure is the one almost everyone quotes, and it is not what you are billed. Suppliers add an administration fee for reading and reporting the odometer, typically about 1.86 ISK a kilometre including VAT, so the invoice rate is nearer 8.81.

The practical effect is that fuel is cheaper than it was but distance now costs money twice. On a Ring Road trip the kilometre charge alone comes to roughly 11,700 ISK. Some rental companies bill it per kilometre, others as a flat 1,390 to 1,550 ISK a day — worth checking which, because on a short trip with a lot of driving the flat rate is a bargain and on a long slow one it is not.

What real drives cost in petrol

Measured road distances, priced at today's pump price, with the kilometre road tax shown separately because it is a separate charge. One way.

Petrol plus the kilometre road tax, one way. Price a whole trip or check any other route.

Where petrol is cheaper

Not really anywhere, which is the useful answer. Right now the capital area averages 224.1 ISK a litre across 99 stations and the rest of the country 224.2 across 146 — a difference of 0.1 ISK, which is nothing. Iceland is widely assumed to charge more the further you get from Reykjavík and the pump data does not support it. Do not plan a route, or a fill-up, around geography.

The brand matters more than the map, though not enormously. Atlantsolía is currently the cheapest chain at about 214.3 ISK a litre and N1 the dearest at 228.9 — a spread of 14.6 ISK, or roughly 6%. Over a Ring Road trip in a 4x4 that is about 1,800 ISK, so it is worth a mild preference and not a detour.

The single cheapest pump reporting right now is Kauptún (Costco Iceland) at 188.2 ISK. Warehouse-club forecourts are reliably the cheapest fuel in the country and reliably require a membership card, so they are useful if you already have one and irrelevant if you do not.

Filling up in Iceland: what actually catches people out

• Bring a card with a PIN — Unattended pumps are the norm and many require chip-and-PIN. A card that works everywhere else can still be refused at a pump.
• Fill at half a tank, not at empty — In the east, the Westfjords and the highlands the gaps between stations are long and some shut in the evening.
• The pump pre-authorises — Paying at the pump usually reserves a fixed amount against your card and refunds the difference within a few days. It is normal, and it is why your balance looks wrong.
• Geography barely moves the price — The capital and the countryside charge within a rounding error of each other. Chains differ a little more, but never enough to justify a detour — the fuel you burn getting there costs more than the saving.
• The kilometre tax appears on your rental invoice — Not at the pump. It is billed by the rental company against your odometer reading, so the fuel you buy is not the whole cost of the distance you drive.

Common questions about fuel in Iceland

How much is gas in Iceland right now?

About 224.2 ISK a litre for 95-octane, ranging from roughly 198.3 at the cheapest pumps to 228.9 at the dearest. In US terms that is about $6.83 a gallon. Iceland sells fuel by the litre and prices are the same for self-service and full-service, because there is no full service.

Why is gas cheaper in Iceland in 2026?

Because the tax moved rather than went away. On 1 January 2026 most road tax came off the pump and reappeared as a per-kilometre charge on every vehicle. Petrol dropped by around a third — from roughly 300 ISK a litre to the 224.2 or so it is now — while the cost of covering distance stayed broadly where it was. Any guide still quoting pre-2026 fuel prices is overstating them badly.

Is diesel cheaper than petrol in Iceland?

No — diesel is currently about 244.8 ISK a litre against 224.2 for 95-octane petrol, roughly 9% dearer. That surprises visitors from countries where the reverse holds. Diesel engines are still often the cheaper choice over a long trip because they use a quarter to a third less fuel per kilometre, but the price on the sign will not be lower. Most larger Icelandic rental vehicles are diesel.

How much does it cost to drive the Ring Road?

For a small car, roughly 1,332 km at 6.5 litres per 100 km is about 87 litres, or around 19,505 ISK of petrol. A 4x4 at 9.5 litres per 100 km uses about 127 litres, near 28,473 ISK. Add roughly 11,700 ISK of kilometre road tax to either, and remember the Ring Road is 1,332 km before a single detour — most people drive considerably more than that.

Do I need a credit card with a PIN to buy fuel in Iceland?

Yes, and this is the single most common problem visitors have. Most Icelandic pumps are unattended and require a chip-and-PIN card; a card that only does signature or contactless may be refused at the pump even if it works in shops. Know your PIN before you land. Prepaid fuel cards sold in the station shops are the fallback if your card is rejected.

Are there fuel discount cards worth having?

The chains all run discount schemes, and the saving is real but small — a few krónur a litre, which over a two-week trip is perhaps the cost of one restaurant meal. Rental companies often hand you a discount key with the car; use it if you get one, but it is not worth planning a route around.

How far apart are filling stations in Iceland?

Around Reykjavík and along the south coast, rarely far. In the east, the Westfjords and anywhere in the highlands, stations can be 100 km or more apart and some close in the evening. The working rule is to fill up when you pass a station with less than half a tank, rather than when you need to — running dry in the interior is a genuinely serious situation, not an inconvenience.

Where these numbers come from

• Pump prices — Gasvaktin, an open dataset of Icelandic filling station prices, read across 245 stations reporting 95-octane and diesel. Refreshed several times a day. The range is the 10th to 90th percentile, so one outlying pump does not define it.
• Kilometre road tax — Statutory 6.95 ISK/km for cars and SUVs since 1 January 2026, plus a typical rental administration fee of about 1.86 ISK/km including VAT. Published supplier fees range from roughly 1.4 to 1.9.
• Exchange rate — European Central Bank reference rates, used only to convert the ISK figures above.
• Driving distances — Measured road routes from our own dataset of precomputed drives between Icelandic destinations, the same figures behind our distance pages.

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