More than one million potholes were reported to councils last year, according to new research.
A study for insurance firm Confused.com also revealed that councils paid £3.1 million in compensation to drivers whose vehicles were damaged by poor road surfaces in 2016.
Local authorities spent an additional £104 million repairing potholes.
The figures were obtained following Freedom of Information requests to 412 local authorities.
Confused.com calculated that the UK's potholes have a total depth of more than 24 miles, which is almost four times deeper than the Pacific Ocean.
A survey of 2,000 motorists found that one in three (33%) have suffered damage to their vehicles due to poor road surfaces, including tyres and suspension problems.
Wiltshire Council made the biggest pay-outs to pothole victims at £508,000 last year.
The cost of repair varies between areas, with Westminster City Council forking out the most per pothole at £2,400.
Confused.com motoring editor Amanda Stretton said: "Scrolling to depths of 40km (25 miles) really puts the UK's pothole problem into perspective.
"They are a major bugbear among drivers, not least because of the damage they do to our vehicles - around £3.1 million worth of damage.
One in three of us have encountered potholes on Britain's roads
"If drivers experience a bump in the road, they should report it to their local council as soon as possible before the problem gets any worse.
"The cost of motoring alone is getting more and more expensive and damage repairs is a big contributor to this, as car parts increase in price as well."
The annual road maintenance survey by the Ashphalt Industry Alliance found that local authorities in England and Wales need more than £12 billion of funding to bring the road network up to scratch.
This is several times more than councils' entire annual revenue spending on highways and transport, which was £4.4 billion in England last year.
What to do if your car is damaged
It can cost thousands to repair
If you damage your vehicle as a result of a rogue pothole, follow these steps:
Collect evidence - Take photographs of the pothole (including close-up images and images of its location on the road), the size and depth of the pothole – you can use something like a ruler in the photograph to demonstrate this – and the damage to your vehicle.
Assess the damage - You need to know how much it is going to cost to repair the damage caused to your vehicle. Obtain written quotes for this.
Make a report - All councils allow you to report potholes via their websites. When you make a report, include all the supporting evidence you have collated and the quotes to repair the damage.
The council will review all the evidence you have provided and make an assessment as to their liability.
If you have submitted all the relevant evidence they are more likely to pay out.
However, section 58 of the Highways Act 1980 provides councils with a statutory defence if they can show that reasonable care was taken to secure the road and that it wasn't dangerous to traffic.
In other words, if the local authority knew about the pothole but hasn't repaired it, or hasn't followed road maintenance guidelines, you may be able to claim compensation.
You can also claim on your insurance, but of course this may affect your premiums and any no claims bonus.