Enter any UK registration number above and our free BHP check instantly pulls the engine performance data associated with that vehicle from official records. You'll see the car's brake horsepower (BHP), engine size in cc, maximum torque in Nm, top speed, and additional performance figures — all based on the manufacturer's original specification for that exact model and variant.
This information is useful whether you're buying a used car and want to verify what you're being told, comparing two similar models to understand the performance difference, checking a car's BHP before applying for an insurance quote, or simply curious about what's under the bonnet of a vehicle you already own.
The BHP check is completely free — no account needed, no card details, nothing to sign up for. If you want to go deeper, you can also access a full vehicle history report covering outstanding finance, insurance write-offs, MOT history, mileage authenticity, previous owners, and much more.
Alongside the BHP figure you'll see the car's make, model, fuel type, transmission, engine size, year of manufacture, and body style. These details help you contextualise the power output — 150 BHP in a lightweight hatchback delivers a very different driving experience to 150 BHP in a large SUV.
The free check includes torque output in Nm and top speed alongside the BHP figure. Torque is particularly useful for understanding real-world driving ability — higher torque at lower revs means better pulling power for towing, motorway overtaking and loaded driving, regardless of the headline BHP number.
The free report also shows current MOT and road tax status so you can quickly confirm the vehicle is legal to drive. You'll see the MOT expiry date and tax expiry date at a glance — essential checks before viewing any used car.
We also display CO2 emissions (g/km) and official fuel economy figures, which directly affect your annual road tax cost and give you a realistic idea of running costs. Higher BHP engines generally produce more CO2, which places the vehicle in a higher VED tax band.
BHP stands for Brake Horsepower and is the standard unit used in the UK to measure a car engine's power output. The term originates from the method of measuring engine power — a braking mechanism (historically a friction brake applied to the flywheel) was used to measure the force the engine produced. The result is a figure that represents how much power the engine delivers after accounting for frictional losses from components like the gearbox, alternator and power steering pump.
The concept of horsepower itself dates back to the 18th century, when Scottish engineer James Watt needed a relatable way to market his steam engines. He calculated that one horse could do approximately 33,000 foot-pounds of work per minute, and used this as his benchmark. That unit of measurement survived into the age of the motor car, and BHP has been the UK's preferred measure ever since.
In practical terms, a higher BHP figure means the engine can do more work in a given time — which translates to faster acceleration, a higher top speed, and more capability when the car is heavily loaded or being driven hard.
If you've ever shopped for a car, you've probably seen engine power listed in different units depending on the manufacturer, the country of origin, or the publication. Here's what each one means and how they compare:
When comparing cars, always make sure you're comparing like-for-like. A 150 PS car and a 150 BHP car are almost identical in power output, but a 150 kW car is significantly more powerful at around 201 BHP.
The right amount of BHP depends entirely on how and where you drive. More BHP isn't always better — a very high-powered car in urban conditions can be tiring to drive, expensive to insure and harder on fuel. Here's a practical breakdown by use case:
Bear in mind that BHP alone doesn't determine how a car feels to drive. Torque, weight, gearing and power delivery all play a role. A diesel with 150 BHP and high torque can feel faster in everyday driving than a petrol with the same BHP but peak power only at high revs.
BHP is one of the key factors UK insurance companies use to calculate your premium. Higher BHP vehicles are statistically associated with faster driving and greater accident severity, so insurers typically charge more to cover them. This means knowing the exact BHP of any car you're considering is important before you get a quote — not after.
If you've modified a car through remapping or engine tuning and its BHP is now higher than the manufacturer's standard figure, you must declare this to your insurer. Failing to disclose a power increase can invalidate your policy entirely, meaning any claim would be rejected. Our BHP check shows the official manufacturer figure; if the actual car has been modified, the reported BHP may differ from what is currently produced.
Additionally, BHP affects which insurance group a car sits in. The insurance group system (1–50) takes engine performance into account, and cars in higher groups typically carry higher premiums. Checking BHP before purchase helps you budget for insurance costs accurately.
A free BHP check tells you how powerful a car is — but power figures alone don't tell you whether a car is safe to buy. A comprehensive vehicle history report reveals the complete picture: whether the car has outstanding finance (meaning it can be legally repossessed even after you've paid for it), whether it's been written off in an accident and repaired, whether the mileage is genuine, and whether there are any stolen markers on the vehicle.
Our paid reports cover MOT history, previous keeper count, plate changes, salvage auction records, insurance write-off category, import and export status, and much more. When you're spending hundreds or thousands of pounds on a used car, a full history check is a small investment that can prevent a very costly mistake. The free BHP check is the ideal starting point — the history report gives you the confidence to complete the purchase.
A BHP check uses a vehicle's registration number to retrieve the official manufacturer power output for that specific car. It shows the brake horsepower (BHP), engine size in cc, torque in Nm, and top speed. This helps you understand the car's performance potential, compare it to other models, prepare for insurance quotes, and verify the seller's claims about the vehicle's specification.
Simply enter the vehicle's UK registration number into the search field above and click check. Our system retrieves engine performance data from official records and displays it instantly — no login, no payment and no sign-up required. You'll see the BHP alongside other free vehicle details including MOT status, tax status, fuel type, engine size and CO2 emissions.
The BHP figure shown is the manufacturer's official specification for that vehicle's registered variant and engine. It represents what the car was built to produce from the factory. If the car has since been remapped or had engine modifications, the actual power output may be higher than the registered figure — but this would not appear in official records. If you suspect modifications, consider a professional inspection or diagnostics check.
All four measure engine power but use slightly different methods and units. BHP (brake horsepower) is the UK standard and measures power at the wheels, accounting for drivetrain losses. HP (horsepower) measures at the engine crankshaft and is always slightly higher than BHP. PS (Pferdestärke) is the German metric equivalent of horsepower — 1 PS equals approximately 0.9863 BHP, making them nearly identical. kW (kilowatts) is the EU standard, most common for electric vehicles — 1 kW equals approximately 1.34 BHP. When comparing cars, always use the same unit to ensure a fair comparison.
For urban and commuter driving, 60–100 BHP is sufficient. For general mixed driving including motorway use, 100–150 BHP is comfortable for most cars. If you're regularly driving a heavier vehicle — a large estate, SUV or 7-seater — 150–200 BHP helps maintain performance without putting the engine under strain. Performance and driver-focused cars sit above 200 BHP, with associated increases in insurance cost and fuel consumption.
Yes, BHP is one of the key factors used by UK insurers to calculate premiums. Higher BHP cars are typically associated with faster driving and more severe accidents, so they carry higher premiums. BHP also contributes to a vehicle's insurance group (1–50), with higher-powered cars placed in higher groups. If a car has been tuned or remapped and its BHP is above the manufacturer's standard figure, this must be disclosed to your insurer — failure to do so can invalidate your policy.
Alongside BHP, our free report shows vehicle make, model and variant, fuel type, transmission type, engine size, CO2 emissions, fuel economy, MOT expiry date, road tax status, ULEZ compliance, year of manufacture, safety ratings, and more. For a fully detailed history check including finance, write-offs, mileage and previous owners, you can upgrade to one of our paid reports.
A full vehicle history report reveals everything that a BHP figure can't: whether the car has outstanding finance (a common and costly risk for used car buyers), whether it's been written off and repaired, whether the mileage is genuine, how many previous owners it has had, whether it has been stolen or has a stolen marker, and much more. Combined with the free BHP check, a full report gives you the complete picture before committing to any purchase.