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Yacht fuel costs in 2026 run $200 to $2,400 per hour underway by size, calculated on tax-paid Mediterranean marine diesel at $1.65 per litre in April 2026. A 30m yacht at cruise burns 200 to 350 litres an hour ($330 to $580). A 50m yacht burns 400 to 700 litres an hour ($660 to $1,155). An 80m yacht burns 900 to 1,500 litres an hour ($1,485 to $2,475). A 100m yacht burns 1,400 to 2,400 litres an hour ($2,310 to $3,960). Top speed burns roughly twice the cruise rate. Commercial-flagged charter yachts access tax-free marine diesel at approximately 60 percent of the tax-paid price, which is the cost actually charged through APA on a charter.
This page covers fuel consumption by yacht size, fuel pricing by region and flag status, the cost of a typical charter week, and the captain decisions that materially affect APA reconciliation. Fuel is the single largest line item in the APA on a Mediterranean charter, typically 35 to 50 percent of total APA spend, so understanding the math matters for negotiating APA percentage and reconciling at trip end.
Fuel consumption by yacht size
Fuel burn scales with displacement, hull form, and propulsion type. The numbers below are for a moderate semi-displacement or displacement hull at cruise speed (12 to 16 knots depending on size). Planing hulls in the 24m to 40m range burn meaningfully more at the same speed.
| LOA | Cruise speed | Cruise burn (L/h) | Top speed | Top burn (L/h) | Range at cruise |
|---|---|---|---|---|---|
| 24 to 29m | 11 to 13 kn | 150 to 250 | 22 to 28 kn | 350 to 600 | 1,500 to 2,500 nm |
| 30 to 34m | 11 to 14 kn | 200 to 350 | 16 to 24 kn | 450 to 800 | 1,800 to 3,000 nm |
| 35 to 39m | 12 to 14 kn | 280 to 420 | 16 to 22 kn | 600 to 950 | 2,500 to 3,500 nm |
| 40 to 49m | 12 to 15 kn | 350 to 580 | 16 to 22 kn | 800 to 1,400 | 3,000 to 4,500 nm |
| 50 to 59m | 12 to 15 kn | 400 to 700 | 16 to 22 kn | 1,000 to 1,700 | 3,500 to 4,500 nm |
| 60 to 69m | 13 to 16 kn | 600 to 950 | 16 to 22 kn | 1,400 to 2,200 | 4,000 to 5,500 nm |
| 70 to 79m | 14 to 16 kn | 750 to 1,200 | 17 to 22 kn | 1,800 to 2,800 | 4,500 to 6,500 nm |
| 80 to 89m | 14 to 17 kn | 900 to 1,500 | 17 to 22 kn | 2,200 to 3,400 | 5,000 to 7,000 nm |
| 90 to 99m | 14 to 17 kn | 1,200 to 1,900 | 17 to 22 kn | 2,800 to 4,200 | 5,500 to 7,500 nm |
| 100m and above | 14 to 17 kn | 1,400 to 2,400 | 17 to 22 kn | 3,300 to 5,500 | 5,500 to 8,500 nm |
Three caveats on these numbers.
Hull form matters. A full-displacement Lurssen or Feadship at 80m burns 900 to 1,100 litres an hour at cruise. A semi-displacement Heesen or Amels at the same length burns 1,200 to 1,500. A planing hull above 50m is unusual but exists; planing hulls burn 50 to 100 percent more at cruise than displacement hulls of the same length.
Propulsion type matters. Diesel-electric and hybrid propulsion at 70m+ delivers 15 to 25 percent better fuel economy at moderate cruise speeds than conventional diesel-direct propulsion. The newest builds (2020 and later) increasingly use hybrid drive, and the fuel savings on a long passage are measurable. A diesel-electric 80m on a 700-mile crossing burns roughly 80 percent of the fuel of a comparable diesel-direct 80m.
Cruise speed choice within the efficient range matters. Pushing 16 knots on a hull that hits its sweet spot at 13 knots burns 40 to 60 percent more fuel for 25 percent more speed. Captains who optimise for fuel during a relaxed cruising itinerary save meaningful APA spend; captains who default to higher cruise speeds out of habit leave money on the table.
Marine diesel pricing in 2026
Marine diesel is priced in litres at the dock, with significant variation by region, port, and supplier. Spot prices change weekly with crude markets. The figures below are tax-paid Mediterranean equivalents in April 2026.
| Region or port | Tax-paid (USD/litre) | Tax-free commercial flag (USD/litre) |
|---|---|---|
| Cote d'Azur (Antibes, Monaco) | $1.75 to $1.85 | $1.05 to $1.20 |
| Italian Riviera (Genoa, Imperia) | $1.65 to $1.80 | $0.95 to $1.10 |
| Sardinia (Olbia, Porto Cervo) | $1.70 to $1.85 | $1.00 to $1.15 |
| Mallorca (Palma) | $1.55 to $1.70 | $0.90 to $1.05 |
| Greek mainland | $1.60 to $1.75 | $0.95 to $1.10 |
| Croatian coast | $1.45 to $1.60 | $0.85 to $1.00 |
| Turkish coast (Bodrum, Marmaris) | $1.40 to $1.55 | Not applicable (no commercial regime) |
| Caribbean (BVI, Antigua, St Martin) | $1.30 to $1.55 | $0.85 to $1.05 |
| Bahamas | $1.45 to $1.65 | $0.95 to $1.15 |
| Maldives | $1.65 to $1.85 | $1.10 to $1.30 |
The tax-free price applies to yachts on qualifying commercial flags (Cayman, Marshall Islands, Malta, BVI, Bermuda) operating under commercial charter. Private-use yachts pay tax-paid prices. The difference is approximately $0.65 to $0.80 per litre across the Mediterranean and $0.40 to $0.55 per litre across the Caribbean. A 5,000-litre fill on a Mediterranean stop saves approximately $3,250 to $4,000 on a commercial flag versus a private flag.
Some ports run materially above the regional average due to supply-chain costs or local taxation. Monaco runs $0.10 to $0.20 above the regional average; remote Greek island fuel stops run $0.10 to $0.25 above; Croatian islands without bunker barges sometimes require ferry-supplied fuel at $0.30 above the mainland price. Captains who time fuel uplift around known supply points save meaningful APA on long itineraries.
Fuel cost on a typical charter week
The fuel line item on a moderate-cruising Mediterranean peak week, calculated at tax-free commercial flag pricing in the $0.95 to $1.10 per litre range.
| LOA | Cruising-light week (30 nm/day) | Moderate week (50 to 80 nm/day) | Cruising-heavy week (100 to 150 nm/day) |
|---|---|---|---|
| 30m | $4,000 to $7,000 | $9,000 to $14,000 | $18,000 to $26,000 |
| 40m | $7,000 to $12,000 | $14,000 to $24,000 | $28,000 to $42,000 |
| 50m | $11,000 to $18,000 | $22,000 to $36,000 | $44,000 to $66,000 |
| 60m | $16,000 to $27,000 | $33,000 to $55,000 | $66,000 to $100,000 |
| 70m | $24,000 to $40,000 | $50,000 to $85,000 | $100,000 to $160,000 |
| 80m | $40,000 to $68,000 | $85,000 to $150,000 | $170,000 to $280,000 |
| 90m | $55,000 to $95,000 | $115,000 to $200,000 | $230,000 to $370,000 |
| 100m | $75,000 to $130,000 | $160,000 to $280,000 | $320,000 to $520,000 |
The cruising-light week assumes the yacht is anchored or alongside most days with short hops between bays. The moderate week assumes daily movement of 4 to 6 hours at cruise. The cruising-heavy week assumes long passages most days (Saint-Tropez to Capri, Croatia to Greece, Sardinia to Mallorca).
The cruising profile is set by the itinerary, which is set by the client in consultation with the captain at the pre-charter call. A client who insists on a daily itinerary covering 100 nautical miles is paying for it, and the APA float should reflect that intensity. A client who books a $260,000 base 50m charter and burns $66,000 in fuel for the week is putting roughly 25 percent of the base fee into fuel, which exceeds the typical APA float at this size.
What drives fuel cost variability
Five operational factors materially affect fuel cost on a charter.
Cruise speed choice. A 50m yacht cruising at 12 knots burns 450 litres an hour. The same hull at 16 knots burns 700 litres an hour. The captain's default cruise speed materially affects fuel spend; some captains default to lower speeds for fuel optimisation, others default to higher speeds for shorter passages. Ask at the pre-charter call.
Itinerary structure. A back-and-forth itinerary (Saint-Tropez to Cannes to Saint-Tropez to Monaco) burns more fuel than a single-direction itinerary (Saint-Tropez to Cannes to Monaco to Capri). The captain who routes the itinerary efficiently saves 10 to 25 percent of fuel spend on a typical week.
Anchorage versus dockage choice. A yacht alongside in port consumes generator fuel only (50 to 150 litres an hour at 50m depending on load). A yacht at anchor consumes generator fuel plus the small additional load of anchor windlass operations and water-toy support (10 to 30 litres an hour more). The difference over a week is small but not zero.
Cold-start versus warm-up timing. Some captains start the main engines early before guests embark for cruising, running at idle while crew prepares for departure. This adds 30 to 90 minutes of idle running daily, which is typically 100 to 250 litres of fuel a day. Most well-run yachts minimise idle main engine running.
Generator load management. A 50m yacht in peak Mediterranean summer with all air-conditioning, full galley load, water makers, and water toys running can draw 80 to 120 percent of one generator's capacity, forcing the second generator online. Two generators running at 50 percent each consume materially more fuel than one generator at 90 percent. Captains who manage generator loading save fuel meaningfully.
Fuel cost trends in 2026
Three trends worth knowing.
Hybrid propulsion delivers real savings on larger yachts. New-build yachts at 70m and above are increasingly diesel-electric or hybrid. The fuel economy improvement on a 70m hybrid versus a 70m diesel-direct at the same speed is roughly 15 to 25 percent at moderate cruise, more at low cruise speeds where the electric drive operates more efficiently. On a long passage week, the savings can run $15,000 to $30,000 against APA.
Mediterranean fuel prices have stabilised since 2024. The 2022 to 2024 period saw marine diesel pricing fluctuate sharply with broader energy markets. 2025 and 2026 have been comparatively stable, with Mediterranean tax-free pricing in a $0.90 to $1.20 per litre band depending on port. Forward planning of fuel spend has become more reliable.
Bunker barge availability is tighter in peak season. Major Mediterranean ports (Monaco, Saint-Tropez, Mallorca) operate scheduled bunker barges during peak season, and demand exceeds supply in August. Yachts that need fuel during peak Saint-Tropez week sometimes wait 24 to 36 hours for a bunker slot, or transit to Cannes or Antibes for fuel. Captains who plan fuel uplift around the Saint-Tropez week schedule save time and avoid premium pricing.
What we would push back on
Three patterns around fuel that pay back nothing.
APA reconciliations that lump fuel into a single line item without nautical-mile and engine-hour data. The reconciliation should show fuel uplifts by port and date, engine hours, and nautical miles travelled. Captains on well-run yachts produce this report as standard; some captains on smaller yachts produce a single fuel total without operating data. Insist on the operating data at booking, as a contract term. Without it, you cannot verify the fuel spend against the itinerary.
Cruise speed defaults set higher than the hull's efficient range. Some captains default to cruise speeds above the hull's most efficient point because the schedule allows shorter passages and more shore time. The cost is borne by APA. Ask at the pre-charter call what the standard cruise speed is on this hull, and ask whether running at hull-efficient speed is feasible for the planned itinerary.
Fuel uplift in expensive ports when alternative supply is nearby. Filling a 50m yacht in Monaco at $1.20 per litre tax-free versus filling the same yacht in Antibes 30 nautical miles away at $1.05 per litre tax-free saves roughly $3,750 on a 25,000-litre fill. Captains who default to convenience fuel in Monaco rather than routing for cheaper supply 30 miles away are not optimising APA. Ask.
How fuel fits the all-in math
Fuel is the single largest APA line item on most Mediterranean charters, typically 35 to 50 percent of total APA spend. On a 50m peak Mediterranean week with $260,000 base, $78,000 APA, fuel typically consumes $22,000 to $36,000 of that float (28 to 46 percent of APA). Fuel costs at the 80m and 100m bands consume slightly less as a percentage of APA because dockage, helicopter, and provisioning costs grow faster than fuel costs at larger sizes.
For broader context on charter cost components, see Yacht charter APA typical, Yacht dockage fees Mediterranean, and Yacht charter cost by size. For the underlying contract structure, see How to book a charter yacht.
FAQ
How much fuel does a yacht use per hour? 30m: 200 to 350 L/h. 50m: 400 to 700 L/h. 80m: 900 to 1,500 L/h. 100m: 1,400 to 2,400 L/h. Top speed roughly twice the cruise rate.
What does marine diesel cost in 2026? $0.90 to $1.20 per litre tax-free in major Mediterranean ports, $1.55 to $1.85 per litre tax-paid. Caribbean $0.85 to $1.10 per litre tax-free.
Is yacht fuel cheaper for commercial charter yachts? Yes. Commercial-flagged yachts access tax-free marine diesel at roughly 60 percent of tax-paid price. The difference on a 5,000-litre fill is approximately $3,250 to $4,000 in the Mediterranean.
Fuel cost on a typical charter week? 30m moderate week: $9,000 to $14,000. 50m: $22,000 to $36,000. 70m: $50,000 to $85,000. 80m: $85,000 to $150,000.
Does cruising speed affect fuel cost? Yes, materially. Fuel scales roughly with the cube of speed on displacement hulls. A 50m at 16 knots burns 1.5 times the fuel of the same hull at 12 knots.