Black Cab Fare Estimator
Use this calculator to estimate your black cab fare based on distance, journey time, waiting time, tariff period, and optional extras.
How this cost of black cab calculator works
Black cab fares are normally based on a meter that combines distance traveled and time spent (including slower traffic and waiting). This calculator mirrors that structure so you can get a realistic estimate before you ride.
We use three common fare periods (day, evening, and night), add a standard starting charge, and then apply any extras you enter such as tunnel tolls, airport fees, or pre-booking charges. You can also include a tip to estimate your total out-of-pocket cost.
What affects the price of a black cab?
1) Tariff period
A journey during the daytime is usually cheaper than the same trip at night. Weekend and evening fares are often priced between day and late-night rates.
2) Distance and traffic
If your route is long, distance costs dominate. If roads are congested, time costs can become the biggest factor. That is why two trips with similar mileage can end up with different totals.
3) Extras and surcharges
- Airport drop-off fees
- Road tolls or congestion-style charges
- Advance booking fees (where applicable)
- Holiday or special-event surcharges in some regions
Example planning scenarios
Short city trip
For a 2.5-mile daytime ride with light traffic, your fare may stay relatively close to the base fare plus distance. This is useful when comparing to buses or the Tube for quick hops.
Airport transfer in heavy traffic
For longer rides, time and extras can significantly increase cost. Use this calculator to stress-test your budget by adjusting waiting time and adding airport-related charges.
Tips to reduce your black cab cost
- Travel outside peak congestion periods when possible.
- Share the ride if your group is headed to the same destination.
- Avoid unnecessary waiting stops during the trip.
- Check whether your destination has additional access fees.
- Use this estimator before travel so you can choose the best transport option.
Important note on accuracy
This is an estimate tool designed for budgeting. Official meter calculations are set by local transport authorities and can change over time. Always treat the result as a planning guide rather than a guaranteed final fare.