CarRuler
Compare car sizes, check garage fit, and calculate driving costs by state
A free tool to compare car dimensions at true scale, check if a vehicle fits your garage, and estimate yearly fuel or charging costs based on your state.
About the business
CarRuler is a free web-based tool that helps buyers make informed car purchase decisions by answering two key questions: will the car fit, and what will it cost to drive?
The site provides exact car dimensions from manufacturer specifications cross-checked against US government crash-test data, displayed at true scale so users can accurately compare vehicle sizes. Users can overlay two cars to see length and height differences in inches, check if a specific car will fit their garage with room to walk and open doors, and calculate yearly fuel or charging costs for gas, hybrid, plug-in, and electric vehicles based on EPA data and their state's energy prices.
CarRuler remains independent and free, supported by advertising that does not affect the accuracy of data or rankings. The site includes browseable dimensions by make and body type, along with specialized tools like a towing calculator and rankings such as the most fuel-efficient SUVs.
What you get
- True-scale car size comparison overlay
- Garage fit checker with door opening measurements
- State-specific yearly fuel and charging cost calculator
- Browse dimensions by make and body type
- Towing calculator
Pricing
Pricing model: Free
Neighbours ask
What data sources does CarRuler use?
Dimensions come from manufacturer specifications via a licensed vehicle database and are cross-checked against US government crash-test measurements. Fuel economy and EV range data come from the EPA, while fuel and electricity prices come from the US Energy Information Administration.
Is CarRuler independent?
Yes, CarRuler is independent and does not sell cars. No manufacturer or dealer pays for placement, and the site is free and supported by ads, which never affect the accuracy of numbers or rankings.
How can I report an incorrect measurement or data?
Email the site at hello@carruler.com with the car (year, model and body style or trim), the page, the number you believe is correct, and ideally a link to the manufacturer's spec sheet. Confirmed corrections are included in the next data update.
What vehicles and body types are included on CarRuler?
CarRuler includes a wide range of vehicles including SUVs, pickup trucks, heavy-duty trucks, full-size vans, sedans and hatchbacks, minivans, wagons, sports cars, and electric cars. Users can browse dimensions by make and body type.
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CarRuler has a free listing. The owner can unlock the full profile with a paid launch for $5:
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