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Loan Calculator
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Mileage Cost Calculator
Calculates fuel cost per kilometre and the true annual running cost once insurance, tax, maintenance and depreciation are included.
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In short
Mileage Cost Calculator is a free online tool on inputtesthub.com that calculates fuel cost per kilometre and the true annual running cost once insurance, tax, maintenance and depreciation are included. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the Mileage Cost Calculator
- Enter your figures in the input fields.
- The result updates as you type, together with the full working.
- Check the breakdown table to see exactly how the number was reached.
About the Mileage Cost Calculator
The Mileage Cost Calculator calculates fuel cost per kilometre and the true annual running cost once insurance, tax, maintenance and depreciation are included. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Working out whether a more economical car pays for itself.
- Setting a fair mileage reimbursement rate.
- Seeing what share of running cost is actually fuel.
Details
| Fuel share | Often under half the true cost |
|---|---|
| Depreciation | Frequently the largest single item |
| 1 mpg (US) | 235.215 ÷ L/100 km |
The maths behind it
This tool uses Fuel per km = L/100 km ÷ 100 × price. True cost per km adds insurance, tax, maintenance and depreciation, then divides by annual distance. Every intermediate value is shown on screen, so the result can be checked by hand.
People compare cars on fuel consumption alone, but once insurance, tax, servicing and depreciation are counted, fuel is often less than half the true cost per kilometre — and depreciation on a newer car frequently exceeds everything else combined.
Frequently asked questions
Does the Mileage Cost Calculator cost anything?
There is no cost and no cap. The Mileage Cost Calculator is not a demo of a paid product, so nothing is held back or watermarked.
Is my data uploaded anywhere?
No. The Mileage Cost Calculator runs entirely in your browser using JavaScript. Because the work happens locally, the tool also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
What formula does the Mileage Cost Calculator use?
It uses Fuel per km = L/100 km ÷ 100 × price. True cost per km adds insurance, tax, maintenance and depreciation, then divides by annual distance. The full working is printed under the result, so you can follow every step rather than trusting a black box.
What problem does the Mileage Cost Calculator solve?
Typical uses: working out whether a more economical car pays for itself. Setting a fair mileage reimbursement rate. Seeing what share of running cost is actually fuel. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Is there anything to watch out for?
People compare cars on fuel consumption alone, but once insurance, tax, servicing and depreciation are counted, fuel is often less than half the true cost per kilometre — and depreciation on a newer car frequently exceeds everything else combined.
Which values should I know?
Fuel share is Often under half the true cost. Depreciation is Frequently the largest single item. 1 mpg (US) is 235.215 ÷ L/100 km. These are printed on the page itself, so you do not have to take them on trust.
How precise is the result?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
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