Journey cost calculator
Fuel is just the tip of the iceberg. See what driving really costs — and what you can claim back.
Your Vehicle
Fuel type
Charging type
The price per litre at the pump. The default shown is a recent UK average — adjust it to match what you actually pay. Prices vary by region and station.
p/litre
Miles per gallon — check your car's dashboard computer or handbook. Real-world fuel economy is typically 15–25% lower than manufacturer claims. The default is a reasonable estimate for a modern UK car.
mpg
miles
HMRC's 45p rate applies to your first 10,000 business miles each tax year (6 April to 5 April). After that, the rate drops to 25p per mile. Enter how many miles you've already claimed this year so we can calculate the correct rate.
miles
Your tax band
Any shortfall comes from your take-home pay — money you've already paid income tax and National Insurance on. This shows what the shortfall really costs you in gross earnings.
Your cost per mile
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vs HMRC mileage rate
First 10,000 miles (45p)
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After 10,000 miles (25p)
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The HMRC mileage rate has not changed since 2012.
Drag the slider to see how costs and coverage have changed year by year.
In 2012
Cost per mile
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vs HMRC (45p)
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Fuel price
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Based on AA estimates for a typical medium car covering 10,000 miles per year. Your actual costs will vary depending on your vehicle, its age, and your driving habits — but fuel is never the full picture.
Direct Fuel Cost
What you paid at the pump
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Enter a distance to see results.
Total Cost
Including wear & running costs
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HMRC Mileage Claim
What you can claim back
The Approved Mileage Allowance Payment (AMAP). Your employer can pay you this tax-free for business miles in your own vehicle, or you can claim tax relief on the difference if they pay less. This is not for commuting — only journeys for work purposes. The same rates apply regardless of fuel type.
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Estimated shortfall
The HMRC mileage rate has not changed since 2012.
Drag the slider to see how costs and coverage have changed year by year.
Same journey in 2012
Fuel cost
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Total cost
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HMRC claim
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Shortfall
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Cost Breakdown
| Cost category | Per mile | This journey |
|---|---|---|
| Fuel | — | — |
| Wear & running costs | ||
| Depreciation | — | — |
| Insurance | — | — |
| Servicing & repairs | — | — |
| Road tax | — | — |
| Tyres | — | — |
| Breakdown cover | — | — |
| Total cost | — | — |