Useful next calculations
Rates and sources
DVLA, HMRC fuel advisory rates and manufacturer-published figures. Real-world results vary by driving style.
Source: DVLA / HMRC fuel advisory rates. Check the linked guidance and any live quote before acting.
When to use this calculator
- When you need a fast estimate before making a bigger decision.
- When you want to compare a few scenarios using the same assumptions.
- When you need a clearer starting point before using a detailed quote or formal document.
- When you want to sanity-check a figure you have seen elsewhere.
A worked example
These are the example figures the calculator opens with.
| Input | Value |
|---|---|
| Car Value (£) | £15,000 |
| Driver Age | 35 |
| Years No Claims | 5 |
For those figures the calculator returns:
- Annual premium: £900.00
- Monthly: £75.00
Method & assumptions
This car insurance calculator provides an indicative estimate of annual premium costs based on the key rating factors you enter, including vehicle insurance group, driver age, no-claims discount, and annual mileage. It is intended as a planning and comparison tool rather than a formal quote — actual premiums are determined by individual insurers using proprietary pricing models and will differ. All car insurance sold to UK consumers must be arranged through firms authorised and regulated by the Financial Conduct Authority (financial regulator), which sets conduct standards including fair pricing rules introduced in 2022 that prevent insurers from charging renewing customers more than equivalent new customers. The calculator does not account for optional extras such as legal expenses cover, breakdown cover, or courtesy car provisions, which add to the total policy cost.
Common mistakes
- Using optimistic assumptions without testing a more cautious scenario.
- Comparing outputs from different tools without checking that the inputs match.
- Treating the result as a final quote instead of a planning estimate.
- Rounding inputs too aggressively.
What to do next
- Try at least one more scenario so you can compare a realistic range.
- Use the related calculators below to cross-check the decision from another angle.
- Write down the key outputs from your best scenarios before you decide.
- If the result surprises you, change one input at a time to isolate the driver.