McKinsey / Accenture / Got all BIG3 offers / More than 300 real MBB cases / Harvard Business School
Book a coaching

How many deliveroo drivers are there in London?

Anonymous A
Vlad replied on 06/07/2018
McKinsey / Accenture / Got all BIG3 offers / More than 300 real MBB cases / Harvard Business School


You can calculate it from the demand and supply sides:

Demand side:

  1. Population of London
  2. % of the population that orders food on demand (use the sample of your friends and family)
  3. Frequency - How many times per month do an average person order food on demand (Again I will use a personal example taking a sample of my friends and relatives. The main tip here - take the weighted average. Remember that only a small share of users is frequent (more than 4 orders per month) but the average user will probably order once in a month.
  4. Deliveroo market share - ask the interview, or make an assumption (e.g. out of 10 couriers I see in the street 7 are Deliveroo)
  5. Total Deliveroo orders per month = Population * % use on demand * Frequency
  6. Assume the number of orders an average driver is making per month (20 working days * 8 hours per day * 3.5 orders per hour (taking into account that utilization is not 100% and that a driver is carrying more than one order))
  7. Number of monthly active drivers = Total orders per month / monthly orders per driver

Supply side / sanity check:

  1. When I open the Deliveroo app I see xx couries covering some area (at least it works for Uber)
  2. Assume some utilization rate for peak / off-peak and apply it to get the total number of cars in your area
  3. Multiply that area by the number of similar areas to cover the city (adjust to how busy your area is)


Related BootCamp article(s)

Market Sizing

Market Sizing Cases are used to test your quantitative and reasoning skills. The interviewer evaluates your structure, numbers-handling and business sense.

16 Comment(s)

Important Facts

It's essential to know some key figures regarding geographies, population, economies for your case interviews. We summarized them for you here.

9 Comment(s)

Related case(s)

Your client, large automotive OEM WyCar, has developed its first fully electric vehicle (EV) and introduced it as a pilot on the Austrian market last year. However, sales have been far below the expected numbers. The management has engaged you to support them in understanding the reasons and advise ... Open whole case

Bain Case: Old Winery

Solved 10.7k times
4.4 5 285
| Rating: (4.4 / 5.0)

You have inherited the “Old Winery” from your grandfather, a winery which has been family owned for five generations and can be dated back to the 16th century. Half of the eleven hectares are used to grow white grapes, the other half to grow red grapes. They are grown in the conventional way, i.e ... Open whole case

Onlinestar, an online retailer of furniture and garden products (core business), has grown significantly in recent years as a result of an expansion of its product portfolio. The company mainly imports goods from Chinese manufacturers but also operates its own production of cat lavatories (special b ... Open whole case


Solved 39.2k times
4.5 5 1149
| Rating: (4.5 / 5.0) |

Nutripremium is a very well-known premium nutrition food company in Europe (€1 billion revenue last year). It is based in Spain and has an excellent market share not only in its home country but also in Portugal, France, Italy and Germany. Nutripremium has two main lines of products: Vitam ... Open whole case

Children vaccine

Solved 36.2k times
4.4 5 1135
| Rating: (4.4 / 5.0) |

Beyer, one of the biggest pharmaceutical companies in the world, just invented a very reliable vaccine against Chickenpox, a disease that affects children in the age from 2 to 16 years. Beyer came to you wondering what their potential sales in Europe in the first year would be if they launched th ... Open whole case