Toyota Prius + 2021 running costs in United Kingdom
Official UK VCA merged archive figure for the 2021 Toyota Prius +: 47 mpg (UK), 135 g/km CO₂. At United Kingdom prices (£1.64/L petrol), driving 12,000 miles a year costs about £1,900 — £0.10 per mile, priced on petrol (a plug-in hybrid also uses electricity, which is cheaper per km on home charging).
Official figures — 2021 Toyota Prius +
| Fuel type | Plug In Hybrid |
|---|---|
| Official consumption | 47.1 mpg (UK) |
| CO₂ (official) | 135 g/km |
| Configurations in source data | 1 |
| Data source | UK VCA merged archive — WLTP test cycle |
What it costs to run in United Kingdom
| Plug In Hybrid (47.1 mpg (UK)) | £1,900/year |
|---|---|
| MOT | £54.85/year |
| Typical annual road tax | £190/year |
| Estimated annual running cost | £2,145/year ≈ £179/month |
Assumes 12,000 miles a year and the current average United Kingdom prices shown above (GOV.UK weekly road fuel prices, Sep 2026 (164.4p)). Insurance is not included because it depends on your age, history and the policy — add it in the full ownership calculator. Servicing, tyres and repairs also vary by car and driver.
A 2021 Toyota Prius + at different annual mileages
Running costs scale almost linearly with mileage: this car's certified 47 mpg (UK) fixes the cost of every extra 1,000 miles.
| Driven a year | Fuel or electricity | All-in running cost |
|---|---|---|
| 8,000 miles | £1,267 | £1,512 |
| 12,000 miles | £1,900 | £2,145 |
| 18,000 miles | £2,850 | £3,095 |
Over five years at 12,000 miles a year, fuel or electricity plus the MOT and road tax come to roughly £10,726; over ten years, about £21,452. Insurance, servicing, tyres and repairs are on top of that and are excluded throughout this page.
Is the 2021 Toyota Prius + cheap to run? How it ranks in United Kingdom
Among the 341 plug in hybrid cars with official figures in our United Kingdom dataset, the 2021 Toyota Prius + is the 177th most efficient — 1 is the most efficient.
It uses 6.0 L/100km against a market median of 5.9 L/100km and a market average of 6.1 L/100km. The middle half of plug in hybrid cars sit between 4.9 and 6.9 L/100km. This car is therefore about 1.7% above the typical plug in hybrid car — worth roughly £32.21 a year more at 12,000 miles a year.
What a 2021 Toyota Prius + costs to run in other countries
The same car with the same certified consumption, priced at each market's own average fuel and electricity prices — so the differences below are local prices, not a different car.
| Market | Fuel or electricity per year | Converted to euro |
|---|---|---|
| Spain | €1,560 | €1,560 |
| Ireland | €1,656 | €1,656 |
| France | €1,866 | €1,866 |
| Germany | €2,012 | €2,012 |
| Netherlands | €2,115 | €2,115 |
| United Kingdom | £1,900 | €2,212 |
Only markets that certify this exact model-year are listed, and fuel is compared like for like: road tax, insurance, the roadworthiness test and servicing are excluded because they differ by country. Euro conversions use ECB reference rates.
How it compares with other plug in hybrid cars in United Kingdom
The average plug in hybrid car in our United Kingdom dataset uses 5.9 L/100km. The 2021 Toyota Prius + uses 6.0 L/100km — about 1.7% more than that average, or roughly £31.67 extra a year at 12,000 miles.
2021 Toyota Prius + — configurations in the official data
| Fuel | Consumption | CO₂ | Engine | Power | Source variant |
|---|---|---|---|---|---|
| Plug In Hybrid | 6.0 L/100km | 135 g/km | — | — | 1 versions · WLTP · median 47 mpg (UK) |
Figures are the official certified values recorded in the UK VCA merged archive, grouped across 1 configuration. Real-world consumption is typically higher than the certified figure.
2021 Toyota Prius + running costs — frequently asked questions
How much does a 2021 Toyota Prius + cost to run in United Kingdom?
About £2,145 a year (£179 a month) at the market average price of £1.64 per litre of petrol. That is £1,900 of fuel or electricity plus £54.85 for the MOT and £190 of road tax. Insurance, servicing, tyres and repairs are not included.
How much does a 2021 Toyota Prius + cost per mile to run?
£0.10 per kilometre (£0.16 per mile) in fuel or electricity alone, based on the certified 47.1 mpg (UK) and United Kingdom average petrol prices.
What is the fuel consumption of a 2021 Toyota Prius +?
The official certified figure for this model-year is 6.0 L/100km, with CO₂ of 135 g/km. Source: UK VCA merged archive, WLTP test cycle. Real-world consumption is usually higher than the certified figure.
What are the CO₂ emissions of a 2021 Toyota Prius +?
135 g/km CO₂ on the WLTP test cycle, according to UK VCA merged archive. CO₂ is what determines the exact road tax band for the specific variant — the £190 figure used on this page is the United Kingdom national average, so check the band for the exact car you are buying.
Is the 2021 Toyota Prius + cheap to run compared with other plug in hybrid cars in United Kingdom?
Yes, in relative terms: it ranks 177 of 341 plug in hybrid cars in our United Kingdom dataset, where 1 is the most efficient. It uses 6.0 L/100km against a market median of 5.9 L/100km — about 1.7% more than the typical car, or roughly £32.21 a year extra at miles the market default.
Where is a 2021 Toyota Prius + cheapest to run?
Of the markets that share this car's certified data, Spain works out cheapest at about €1,560 a year and United Kingdom the most expensive at about £1,900 — the difference is local fuel and electricity prices, not the car. Figures are converted at ECB reference rates and exclude tax, insurance and servicing, which differ by country.
How the 2021 Toyota Prius + running costs are calculated
Every figure on this page is calculated from official certified data — nothing is estimated, and no figure is carried over from a similar car:
- Consumption and CO₂ are the certified values recorded in UK VCA merged archive, measured on the WLTP test cycle, taken across the 1 configuration held for this model-year.
- Annual cost is consumption × mileage × the market's current average price for petrol, at 12,000 miles a year.
- The roadworthiness test and road tax use the United Kingdom national figures shown above. Road tax is banded by CO₂ in most markets, so the exact rate depends on the variant you buy — the figure here is the market average, not a quote for one registration.
- Deliberately excluded: insurance, servicing, tyres, repairs and depreciation. They depend on the driver, the policy and the individual car, so putting a number on them would mean inventing one.
To price a specific car with your own mileage and local prices, use the full running-cost calculator for United Kingdom.
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These are estimates built from official certified figures and current average prices. They are not financial advice. Verify the exact figure for the car you are buying — consumption varies by trim, tyres and driving style.