United Kingdom version
How it works
Calculate a whole-ownership budget without double counting loan principal as both purchase price and repayments.
This is the United Kingdom planning view, with monetary inputs and outputs in GBP. A currency label does not establish that a tax rate, construction price, coverage rule or legal limit has been verified locally. The inputs and limitations below describe the actual scope.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
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?unitSystem=Measurement systemChoice · Optional · Default: metric · Accepted values: imperial, metric
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?purchasePrice=Vehicle purchase priceMoney · Required · Default: 30,000
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?purchaseFees=One-off purchase taxes and feesMoney · Required · Default: 2,000
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?resaleValue=Expected sale proceeds at end of ownershipMoney · Required · Default: 15,000
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?years=Ownership period, yearsNumber · Required · Default: 5
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?annualDistance=Annual driving distanceNumber · Required · Default: 20,000
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?annualEnergy=Annual fuel/charging costMoney · Required · Default: 1,800
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?annualInsurance=Annual insuranceMoney · Required · Default: 900
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?annualMaintenance=Annual maintenance and repairsMoney · Required · Default: 600
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?annualOther=Annual tax, parking and other ownership costsMoney · Required · Default: 500
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?financeInterest=Interest only over the ownership periodMoney · Required · Default: 3,000
Outputs
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depreciationPurchase price minus resale proceedsCurrency · Currency: GBP
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operatingCostTotal entered recurring operating costsCurrency · Currency: GBP
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totalCostTotal ownership costCurrency · Primary output · Currency: GBP
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annualCostAnnual equivalent ownership costCurrency · Currency: GBP
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costPerDistanceCost per distance unitCurrency · Currency: GBP
Formula
ownership cost = purchase price + purchase fees − resale proceeds + recurring operating costs + finance interest.
Calculations retain numeric precision internally. Displayed values are rounded for readability. Quantities that must be purchased as whole units are rounded up only where the formula explicitly requires it.
Read the inputs before calculating
- Vehicle purchase price: Enter the quantity described by the label.
- One-off purchase taxes and fees: Enter the quantity described by the label.
- Expected sale proceeds at end of ownership: Enter the quantity described by the label.
- Ownership period, years: Enter the quantity described by the label.
- Annual driving distance: Enter the quantity described by the label. The measurement selector converts this physical quantity; it does not change the underlying scenario.
- Annual fuel/charging cost: Enter the quantity described by the label.
- Annual insurance: Enter the quantity described by the label.
- Annual maintenance and repairs: Enter the quantity described by the label.
- Annual tax, parking and other ownership costs: Enter the quantity described by the label.
- Interest only over the ownership period: Enter the quantity described by the label.
Reproducible worked example
The following is a fictional arithmetic example, not a local quote, a verified claimant or a market forecast. Its values are included so the formula can be checked. The form does not automatically confirm any verification checkbox.
| Input | Example value |
|---|---|
| Vehicle purchase price | 30,000 |
| One-off purchase taxes and fees | 2,000 |
| Expected sale proceeds at end of ownership | 15,000 |
| Ownership period, years | 5 |
| Annual driving distance (km) | 20,000 |
| Annual fuel/charging cost | 1,800 |
| Annual insurance | 900 |
| Annual maintenance and repairs | 600 |
| Annual tax, parking and other ownership costs | 500 |
| Interest only over the ownership period | 3,000 |
| Output | Calculated result |
|---|---|
| Purchase price minus resale proceeds | GBP 15,000 |
| Total entered recurring operating costs | GBP 19,000 |
| Total ownership cost | GBP 39,000 |
| Annual equivalent ownership cost | GBP 7,800 |
| Cost per distance unit | GBP 0.39/km |
Interpreting a changed assumption
Start with one complete scenario and change only one input when diagnosing a difference. Recheck units, the period of every rate, whether an amount is recurring or one-off, and whether a cost is already included elsewhere. A larger calculated benefit is not evidence that an assumption is more likely to occur.
Limitations
- Prices, consumption and contract terms are entered scenarios. This is not a retail quote, tax eligibility determination or vehicle safety certification.
- Enter interest, not the sum of all loan payments. Sale proceeds are a scenario, not a valuation; a remaining loan affects cash at sale but must not make the purchase principal count twice.
Frequently asked questions
What does this Vehicle Running Cost result represent?
Calculate a whole-ownership budget without double counting loan principal as both purchase price and repayments. It applies the displayed formula to your inputs; it does not infer omitted facts.
Are the starting amounts verified United Kingdom prices or legal rules?
No. Numeric defaults are illustrative unless an input or dated reference explicitly identifies a researched component. Currency is GBP; local quotes, eligibility and unsupported rules must be entered and verified separately.
What must I check before relying on the result?
Prices, consumption and contract terms are entered scenarios. This is not a retail quote, tax eligibility determination or vehicle safety certification.
Can I compare or share different assumptions?
Change one assumption at a time and use the browser-local project or share controls. A shared URL contains the encoded input values; do not include information you do not wish to disclose.
Sources and reference scope
- DOE energy-use arithmetic — retrieved 2026-09-24. Energy consumption versus power; not a local tariff or an approval of this implementation.
- NIST unit conversion guidance — retrieved 2026-09-24. Unit definitions; geometry and financial arithmetic in these worksheets are explicitly stated.
- CFPB loan-estimate explanation — retrieved 2026-09-24. US cost components; the general amortization formula is stated separately.
These references support only their stated scope. They are not evidence that every local rule or price needed by the master expansion has been loaded.