What does a fleet mile cost this week?
In the week of 26 October 2026 a diesel van at 36 mpg cost 25.2p a mile in fuel, up from 18.0p a year earlier, with diesel at 199.2p a litre. An electric van cost about 9.4p a mile on HMRC's rates, so the Index stands at 2.68. The highest weekly diesel price since the series began in 2003 was 200.0p, in the week of 12 October 2026.
Week commencing 26 October 2026. Sources: DESNZ weekly road fuel prices, HMRC advisory fuel rates.
Diesel down 0.11p on the week
The UK average diesel price was 199.22p a litre in the week of 26 October 2026: down 0.11p on the week before and up 1.64p on four weeks earlier. Petrol was 174.07p, down 0.50p on the week. This is the 5th highest weekly diesel price since the series began in June 2003.
For a fleet of 50 diesel vans covering 18,000 miles a year at 36 mpg, that is a fuel bill of £226,418 a year at this week's price, £64,600 more than at the price a year ago. A 60 mph limit on the 30% of their miles driven at 68 mph would save about £9,820 of it (DfT fuel curves).
What fuel costs your fleet at this week's pump price
Change any number and the whole page follows.
A 60 mph limit on your diesel and petrol vans would save about n/a a year in fuel at today's price.
Get a quoteEvery extra 1 MPG across your diesel vans is worth n/a a year.
Energy only: no purchase, lease, servicing, insurance or charger costs. Electric uses HMRC advisory rates, an average rather than your tariff. The speed saving applies the DfT fuel curve for diesel vans (68 to 60 mph, 14.5% less fuel per mile) to the share of miles you set.
Diesel and petrol cost per mile since 2003
How many times more a diesel mile costs than an electric one
From 1 September 2025, when HMRC began publishing separate home and public charging rates.
How much of the diesel price is tax?
Duty is a flat pence per litre. VAT is 20% of the price including duty, so it rises with the pump price.
UK fuel prices by year since 2003
Average weekly UK pump prices for each calendar year, with diesel's highest and lowest week, from the DESNZ series. 2026 is the year to date.
| Year | Diesel average | Petrol average | Diesel high (week) | Diesel low (week) | Diesel van p/mile |
|---|---|---|---|---|---|
| 2026* | 173.7p | 153.2p | 200.0p (12 October 2026) | 140.7p (9 February 2026) | 21.9p |
| 2025 | 142.7p | 135.0p | 146.9p (3 March 2025) | 137.5p (9 June 2025) | 18.0p |
| 2024 | 148.4p | 141.5p | 158.0p (22 April 2024) | 138.5p (7 October 2024) | 18.7p |
| 2023 | 158.1p | 147.7p | 174.2p (2 January 2023) | 144.6p (17 July 2023) | 20.0p |
| 2022 | 177.8p | 164.6p | 199.2p (4 July 2022) | 148.7p (10 January 2022) | 22.4p |
| 2021 | 135.0p | 131.4p | 151.3p (29 November 2021) | 120.0p (4 January 2021) | 17.1p |
| 2020 | 119.5p | 114.1p | 132.9p (27 January 2020) | 111.7p (25 May 2020) | 15.1p |
| 2019 | 131.7p | 125.0p | 136.4p (27 May 2019) | 128.9p (21 January 2019) | 16.6p |
| 2018 | 130.0p | 125.0p | 137.1p (12 November 2018) | 122.8p (19 March 2018) | 16.4p |
| 2017 | 120.2p | 117.5p | 123.8p (18 December 2017) | 115.3p (10 July 2017) | 15.2p |
| 2016 | 110.4p | 108.9p | 119.0p (7 November 2016) | 100.8p (1 February 2016) | 13.9p |
| 2015 | 115.0p | 111.0p | 121.3p (8 June 2015) | 106.4p (28 December 2015) | 14.5p |
| 2014 | 133.5p | 127.4p | 138.3p (13 January 2014) | 120.4p (29 December 2014) | 16.9p |
| 2013 | 140.6p | 134.3p | 146.7p (11 March 2013) | 137.3p (11 November 2013) | 17.8p |
| 2012 | 142.2p | 135.8p | 148.0p (16 April 2012) | 135.9p (2 July 2012) | 18.0p |
| 2011 | 138.8p | 133.4p | 143.1p (9 May 2011) | 129.1p (3 January 2011) | 17.5p |
| 2010 | 119.2p | 116.9p | 127.7p (27 December 2010) | 111.1p (4 January 2010) | 15.1p |
| 2009 | 104.2p | 99.6p | 110.0p (30 November 2009) | 97.6p (5 January 2009) | 13.2p |
| 2008 | 117.6p | 107.0p | 132.9p (21 July 2008) | 99.2p (29 December 2008) | 14.8p |
| 2007 | 97.1p | 94.5p | 107.6p (31 December 2007) | 89.6p (5 February 2007) | 12.3p |
| 2006 | 95.2p | 91.4p | 99.6p (7 August 2006) | 91.1p (6 November 2006) | 12.0p |
| 2005 | 90.8p | 86.8p | 97.9p (12 September 2005) | 83.9p (24 January 2005) | 11.5p |
| 2004 | 81.9p | 80.3p | 86.5p (8 November 2004) | 77.5p (5 January 2004) | 10.3p |
| 2003* | 77.3p | 75.6p | 77.7p (26 August 2003) | 76.4p (14 July 2003) | 9.8p |
* Part year: the series starts on 9 June 2003, and the current year runs to the week of 26 October 2026.
Last 12 weeks
| Week commencing | Diesel p/litre | Diesel p/mile | Petrol p/mile | Electric p/mile | Index |
|---|---|---|---|---|---|
| 26 October 2026 | 199.22 | 25.16p | 24.73p | 9.40p | 2.68 |
| 19 October 2026 | 199.33 | 25.17p | 24.80p | 9.40p | 2.68 |
| 12 October 2026 | 200.04 | 25.26p | 24.90p | 9.40p | 2.69 |
| 5 October 2026 | 199.52 | 25.20p | 24.84p | 9.40p | 2.68 |
| 28 September 2026 | 197.58 | 24.95p | 24.64p | 9.40p | 2.65 |
| 21 September 2026 | 195.53 | 24.69p | 24.44p | 9.40p | 2.63 |
| 14 September 2026 | 190.72 | 24.08p | 23.89p | 9.40p | 2.56 |
| 7 September 2026 | 186.36 | 23.53p | 23.36p | 9.40p | 2.50 |
| 31 August 2026 | 183.49 | 23.17p | 22.96p | 9.40p | 2.47 |
| 24 August 2026 | 182.82 | 23.09p | 22.96p | 9.40p | 2.46 |
| 17 August 2026 | 182.45 | 23.04p | 22.99p | 9.40p | 2.45 |
| 10 August 2026 | 181.97 | 22.98p | 23.04p | 9.40p | 2.44 |
How the numbers are worked out
Diesel and petrol
Weekly UK average pump price in pence per litre, times 4.54609 litres per gallon, divided by MPG. Defaults are 36 MPG diesel and 32 MPG petrol.
Electric
HMRC advisory electric rates for the quarter, blended by your base-charging share. This quarter: 7p a mile at home or base, 15p on public chargers.
Left out
Vehicle price, lease, servicing, tyres, insurance, tax and chargers. The Index covers energy per mile, the part that moves every week.
Use this data
Journalists, analysts and fleet teams can quote, chart or download the Index. Please credit AutoKontrol and link to this page.
AutoKontrol Fleet Cost Index, week commencing 26 October 2026: diesel van 25.16p a mile, electric van 9.40p a mile, Index 2.68. Source: AutoKontrol analysis of DESNZ weekly road fuel prices and HMRC advisory fuel rates (OGL v3.0). https://autokontrol.com/en/data/fleet-cost-index/
Guides
Questions people ask
How much does it cost to run a diesel van per mile?
In the week of 26 October 2026 a diesel van at 36 mpg cost 25.2p a mile in fuel, with diesel at 199.2p a litre (DESNZ). A year earlier it was 18.0p.
What is the AutoKontrol Fleet Cost Index?
A weekly figure for how many times more it costs in energy to drive a diesel van a mile than an electric van. This week it is 2.68: 25.2p against 9.4p. It uses government fuel prices and HMRC's electric rates, and updates every Tuesday after DESNZ publishes.
What is the cost per mile of petrol?
At 32 mpg, petrol cost 24.7p a mile in the week of 26 October 2026, with petrol at 174.1p a litre. Change the mpg in the calculator to see your own vehicles.
How much does an electric van cost per mile?
Using HMRC's advisory electric rates (7p a mile charged at home or base, 15p on public chargers) and 70% base charging, about 9.4p a mile. Your own tariff may be lower or higher.
How can a fleet cut its cost per mile?
Slow down on fast roads. On the Department for Transport's fuel curves a diesel van uses 14.5% less fuel per mile at 60 mph than at 68 mph. A speed limiter holds that on every journey. The calculator on this page shows what it is worth to your fleet.
Can I see the price in a past week?
Yes. The chart and the CSV go back to June 2003, every week since. Diesel's highest week in that time was 200.04p in the week of 12 October 2026.
Sources and method
- Department for Energy Security and Net Zero, Weekly road fuel prices. Weekly UK average pump prices from June 2003. Latest week 26 October 2026
- HM Revenue and Customs, Advisory fuel rates. Electric pence per mile for home and public charging, by quarter
- DfT TAG data book v2.03 (May 2026), Table A1.3.8. Fuel use against speed, for the speed cap saving
- DESNZ Greenhouse gas reporting: conversion factors 2026
Work it out in the calculator above.
DfT's fuel curves show a diesel van at 60 mph uses 14.5% less fuel per mile than at 68 mph.
Free consultation: we go through your numbers and show what limiting would save.
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