11 free tools · real catalog data · 14 currencies, metric and imperial
Car calculators and tools
Free calculators for running costs, sizes, performance and units — with real figures from the 1cars catalog. Prices in euros, dollars, pounds and 11 more currencies; metric or imperial units. They work in any browser, even with JavaScript off.
Running costs
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Fuel cost calculator
Trip fuel cost from consumption, distance and fuel price — per person too.
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Fuel cost comparison
Two cars, one fuel bill: who is cheaper per year and over 5 years.
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Cost of ownership calculator
Depreciation, fuel, insurance, tax and servicing — per year and per km.
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Car loan calculator
Monthly payment, total interest and loan vs PCP vs lease.
Size and fit
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Car size comparison
Two cars to scale: length, width, height and wheelbase.
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Will it fit in my garage?
Your garage vs a real car: length to spare, room to open the doors, headroom.
Size comparison · drawn to scale
X-Trail T33 vs RAV4 XA60
- Length
- +80 mm+3 in +1.7%
- Width
- −40 mm−2 in −2.1%
- Height
- +40 mm+2 in +2.4%
- Wheelbase
- +15 mm+0.6 in +0.6%
- Boot
- +46 L+1.6 cu ft +8.9%
- Kerb weight
- +9 kg+20 lb +0.5%
Performance and units
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Power-to-weight calculator
kW and PS per tonne, kg per kW — and how it ranks in our catalog.
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Power and torque converter
kW ↔ PS ↔ hp/bhp and Nm ↔ lb-ft.
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Fuel economy converter
l/100 km ↔ mpg (UK and US) ↔ km/l.
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Tyre size calculator
225/45 R17 → diameter, sidewall, speedo difference vs another size.
Look up, explore and play
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VIN decoder
Decode a 17-character VIN: make, model, year, body and engine.
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1CARS Race
Race 2–4 real cars on a drag strip, the Autobahn, a mountain pass, off-road or in the city — physics from catalog specs.
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Car finder
Filter every model in the catalog by body, fuel, drive, power, decade and country — as cards or a table.
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My garage
Save the cars you own or like, then compare their specs and sizes side by side.