There is no single taxi fare calculator that works everywhere in the UK, and anyone offering one is simplifying something that genuinely is not simple.
That is because there are two completely different ways of being charged for a car in this country, and which one applies to you changes the answer entirely. Understand that first and the rest of taxi pricing stops being mysterious.
Hackney carriages — black cabs in London, and licensed taxis elsewhere — run a meter. The fare builds as you travel and you do not know the total until you arrive.
In London, Transport for London sets the structure: three tariffs depending on the day and time, a minimum charge that applies however short the trip, and a separate rate once a journey passes roughly six miles. There is also a detail most passengers never notice — the meter switches to charging by time whenever the vehicle drops below about 10.4mph. In heavy traffic you are paying for minutes, not miles.
Amounts change, so check TfL’s current tariffs rather than any figure you read on a blog. Outside London, the local licensing authority sets its own table.
Private hire vehicles — minicabs — work the other way round. The price is agreed before you travel, and it does not change afterwards.
That is not a marketing choice, it follows from how private hire is licensed. As Epsom & Ewell Borough Council puts it, a hackney carriage “may be hailed in the street, hired from a taxi rank or pre-booked”, whereas a private hire vehicle “may only be booked in advance through a licensed private hire operator”.
Because every minicab journey is arranged in advance, both sides know the pickup, the destination and the timing before anyone sets off — so the fare can be worked out and agreed up front. A hailed cab cannot do that, which is exactly why it needs a meter.
Whichever system you are using, the same four variables sit underneath the number.
The distance that matters is road distance, which is often very different from the straight line. Two addresses eight miles apart as the crow flies can be a twelve-mile drive, or a six-mile one with a motorway in between.
Bigger vehicles cost more to run, so they cost more to book. The mistake people make is choosing by passenger count rather than luggage:
| Vehicle | Passengers | Large luggage | Small luggage |
|---|---|---|---|
| Saloon | 4 | 2 | 0 |
| Estate | 4 | 2 | 2 |
| MPV | 5 | 2 | 1 |
| MPV+ | 8 | 5 | 3 |
| Executive | 4 | 2 | 0 |
| Luxury MPV | 7 | 3 | 3 |
| Wheelchair accessible | 3 plus 1 wheelchair | 1 | 0 |
A saloon seats four people and takes two large cases. Four people with four cases need something bigger — and finding that out on the doorstep is the expensive way to learn it.
Metered fares change tariff by the clock. Pre-booked fares reflect the same reality differently: a 4am pickup is a different job from a 2pm one, and both the traffic and the driver’s night are priced accordingly.
Time a car spends stationary is time it is not earning elsewhere. On a meter, waiting ticks over automatically. On a pre-booked job, it depends on what was agreed — which is why airport arrivals, where waiting is unpredictable, are worth asking about specifically.
Nearly every operator has a floor, and it catches people out on short hops. A one-mile trip does not cost a fifth of a five-mile trip, because a large part of any fare is the cost of getting a car to you in the first place — the driving to your door, the waiting, the paperwork.
Metered taxis express this as a minimum charge that applies however short the ride. Pre-booked minicabs express it as a minimum fare. Same logic, different label: the first mile is always the most expensive one.
If you are making a very short journey, it is worth asking what the minimum is before booking — not because it is unreasonable, but because knowing it stops the number being a surprise.
It is one of the most searched pricing questions there is, and it cannot be answered honestly without more information — because thirty minutes buys wildly different distances.
Thirty minutes of stop-start town driving might cover four or five miles. Thirty minutes on a clear motorway covers twenty-five or more. On a meter those two journeys produce very different fares; on a fixed price they are priced as the different jobs they obviously are.
This is the real reason a universal fare calculator does not exist. Time alone tells you almost nothing about cost. Distance plus conditions tells you nearly everything — which is why a proper quote asks where you are going rather than how long you think it will take.
The honest answer is that it depends on the journey — but the difference that matters is not really about the money. It is about who carries the risk when the traffic is bad.
On a meter, that risk sits with you. Roadworks, an accident, a bad hour on the M25 — the meter keeps running and your fare grows for a delay you neither caused nor control. On a fixed price agreed beforehand, that risk sits with the operator, who chose the route and the departure time.
For a short, predictable local hop in light traffic, a meter is often fine and occasionally cheaper. For anything where timing matters — an airport run, an appointment, a train to catch — a fixed price is the better structure, because the number you budget for is the number you pay. Our fuller comparison is in fixed fare or metered taxi.
Most disputes about a fare are not about the fare. They are about something nobody mentioned at booking:
None of these are unreasonable charges. The problem is only ever that they arrive unannounced. Ask about all of them at booking and the fare stops being capable of surprising you. We take card, cash and account payments.
A good operator can price almost any journey quickly, provided you give them the right five things:
Give those and you should get a firm number. If an operator will not commit to one with all five in hand, that tells you something useful.
Everything above applies wherever you are. If you are booking in our area, a few things are worth knowing specifically.
Clocktower Cars is a private hire operator, so every journey is pre-booked and every price is agreed before you travel — there is no meter in our cars. We cover Epsom, Ewell, Sutton, Cheam, Carshalton, Wallington, Worcester Park, Banstead, Reigate, Redhill, Leatherhead, Kingston, Guildford, Godalming and the towns between them, 24 hours a day.
We have route-specific pages explaining exactly what moves the number on the two busiest:
For a price on your own journey, book online, request an airport quote, or call 01372 747 747. For everyday local journeys see our Epsom taxi service, and for airport work the full range of airport transfers.
Not a universal one. Metered fares depend on the tariff in force, the route taken and how long the vehicle spends below 10.4mph, none of which can be known in advance. Pre-booked minicab fares are quoted per journey instead. The reliable way to get a number is to ask for a quote with your pickup postcode, destination, date, time and case count.
The floor below which a fare does not fall, however short the journey. It exists because much of the cost of any trip is getting the car to you in the first place. Metered taxis apply a minimum charge; pre-booked operators apply a minimum fare. Either way, the first mile is the most expensive one.
There is no single answer, because thirty minutes covers four or five miles in stop-start town traffic and twenty-five or more on a clear motorway. Cost follows distance and conditions far more closely than it follows time, which is why quotes ask where you are going rather than how long you expect it to take.
Because of how each is licensed. A hackney carriage may be hailed in the street or taken from a rank, so the journey is unknown until it starts — hence a meter. A private hire vehicle may only be booked in advance through a licensed operator, so the route and timing are known beforehand and the price can be agreed up front.
Sometimes, but the real difference is who carries the risk if traffic is bad. On a meter that risk is yours and the fare grows with the delay. On a fixed price it sits with the operator, and the number you were quoted is the number you pay. For airport journeys that certainty is usually worth more than a few pounds either way.
Airport drop-off charges (Heathrow is £7 per vehicle entry, Gatwick starts at £10), waiting time, card surcharges, child seats, additional stops, pets, and any Congestion Charge, ULEZ or tolls on the route. Ask about all of them at booking and the final figure cannot surprise you.
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