US to Euro Car Units Converter – Convert Measurements Easily

Why you can trust us

This converter uses standard unit conversion formulas for vehicle measurements such as US MPG to l/100km, MPH to km/h, hp to kW, ft-lbs to Nm, lbs to kg, and PSI to bar. We also explain where converted values are useful and where official vehicle documents must take priority.

Understanding US vs. European Automotive Units

The US to Euro car units converter helps you convert vehicle measurements between US and European units. This is especially useful if you are importing a car from the United States to Germany, comparing vehicle specifications, or trying to understand a foreign car listing.

Cars in the US and Europe often use different units for the same information. A US listing may show miles per gallon, miles per hour, horsepower, torque in ft-lbs, cubic inches, pounds, or PSI. In Germany, you are more likely to see liters per 100 kilometers, kilometers per hour, kilowatts, Newton-meters, cubic centimeters, kilograms, and bar.

These conversions can matter for more than comparison shopping. When importing a car to Germany, converted values may help you understand TÜV inspection requirements, speedometer readability, emissions paperwork, shipping documents, insurance details, and vehicle tax information. However, converted values should be treated as guidance only. German authorities and inspection bodies usually rely on official vehicle documents.

How to use the car units converter

Select the type of calculation you need, then choose the conversion direction. Enter the value from your vehicle listing, manual, registration document, or import paperwork.

You can convert:

• l/100km to US MPG or US MPG to l/100km
• km/h to MPH or MPH to km/h
• engine power between common US and EU formats
• torque between Nm and ft-lbs
• cm³ to in³ or in³ to cm³
• kg to lbs or lbs to kg
• air pressure between European and US units

The result updates based on the value and calculation method you select.

Fuel consumption: MPG and l/100km

Fuel consumption is one of the most confusing car conversions because the US and Europe measure it in opposite ways.

In the US, fuel economy is usually shown as miles per gallon. A higher MPG number means the car is more efficient.

In Germany and most of Europe, fuel consumption is shown as liters per 100 kilometers. A lower l/100km number means the car is more efficient.

For example, a car with low l/100km uses less fuel to drive 100 kilometers. A car with high MPG travels more miles on one gallon of fuel.

For US MPG, the standard conversion formulas are:

• US MPG = 235.215 ÷ l/100km
• l/100km = 235.215 ÷ US MPG

Speed: km/h and MPH

Germany uses kilometers per hour for speed limits, road signs, and vehicle speedometers. US cars usually show miles per hour as the main speed unit.

This conversion is important when driving an imported vehicle in Germany. If your car’s speedometer only shows MPH clearly, you may need to understand the equivalent km/h values for German roads.

The standard speed formulas are:

• km/h = MPH × 1.609344
• MPH = km/h ÷ 1.609344

Common examples include:

• 30 km/h city zone = about 19 MPH
• 50 km/h urban speed limit = about 31 MPH
• 100 km/h rural road speed limit = about 62 MPH
• 130 km/h recommended Autobahn speed = about 81 MPH

Engine power

Vehicle power may be listed differently depending on the market. US listings commonly use horsepower, while German documents often use kilowatts. You may also see PS, which is metric horsepower.

This matters for German car registration, insurance, and vehicle tax comparisons. Official German documents usually rely on the vehicle’s technical specifications, so converted values should be treated as a guide.

Common power formulas include:

• kW = hp × 0.7457
• hp = kW ÷ 0.7457
• PS = kW × 1.3596

Torque: Nm and ft-lbs

Torque describes rotational force. US vehicle listings often show torque in foot-pounds, written as ft-lbs or lb-ft. German and European documents usually use Newton-meters, or Nm.

This conversion is useful when comparing engine specifications, towing performance, and technical documents for imported vehicles.

The standard formulas are:

• Nm = ft-lbs × 1.35582
• ft-lbs = Nm ÷ 1.35582

Engine displacement: cm³ and in³

Engine displacement describes the total volume of the engine cylinders. In Germany, this is usually shown in cubic centimeters, or cm³. In US classic car listings, displacement may be shown in cubic inches, or in³.

For example, American car engines are often described as 350, 427, or 454 cubic inches. In German paperwork, the same type of engine would usually be listed in cm³. This can also help when translating your engine displacement into cubic centimeters for German road tax calculations using the car tax calculator.

The standard formulas are:

• cm³ = in³ × 16.387
• in³ = cm³ ÷ 16.387

Vehicle weight: kg and lbs

Germany uses kilograms for vehicle weight. US listings often use pounds.

Weight conversions can be useful when checking:

• vehicle registration documents
• trailer limits
• payload capacity
• shipping information
• vehicle tax or inspection details

For official registration or TÜV inspection, use the values from the official vehicle documents whenever possible.

The standard formulas are:

• kg = lbs × 0.453592
• lbs = kg ÷ 0.453592

Air pressure: PSI and bar

US tire pressure is usually shown in PSI. In Germany, tire pressure is usually shown in bar.

This conversion is useful after importing a car, replacing tires, or reading a US owner’s manual. Correct tire pressure affects safety, fuel consumption, tire wear, and handling.

You can usually find the recommended tire pressure on a sticker inside the driver’s door, in the fuel cap, or in the vehicle manual.

The standard formulas are:

• bar = PSI × 0.0689476
• PSI = bar ÷ 0.0689476

When to use this converter

The US to Euro car units converter is useful if you:

• are importing a car from the US to Germany
• are reading a US vehicle listing
• need to compare fuel consumption
• want to understand an American car manual
• are preparing for TÜV or registration
• need converted values for insurance or shipping

It is also helpful for classic car owners, military families, expats, and anyone comparing US and German vehicle specifications.

What the converter does not include

The converter only changes measurement units. It does not calculate whether a vehicle can be registered in Germany or whether modifications are needed.

For imported vehicles, you may still need to check:

• emissions standards
• lighting requirements
• speedometer requirements
• TÜV inspection rules
• customs duties and import VAT
• vehicle tax
• insurance classification

Use the converter as a practical reference, but rely on official documents and inspection results for registration.

Conclusion

The US to Euro car units converter makes it easier to understand American and European vehicle measurements. It helps you convert fuel consumption, speed, power, torque, displacement, weight, and air pressure when comparing cars or preparing a US vehicle for use in Germany.

Use the result as a quick estimate, then check the official vehicle documents before making import, registration, tax, or insurance decisions.

FAQ