Product ThinkingEstimationMetricsBehavioural Questions

Shoes in USA

How many pairs of shoes are sold every day in the US?
Level
Intermediate
Market
eCommerce
Tags
#b2c #consumerproducts

Clarify question

  • None. Considering all types of shoes - sports, school, casual, formal

Required numbers

  • Total population of US
  • How many new shoes per year one person buys
  • Days per year

Estimating the numbers

  • Total population of US = 330 million
  • Developed Countries Rate is 6 pair of shoes per person per year. World average is about 3.
  • Days per year = 365

Estimate with equation

  • Pair of shoes sold per day in US = Population * Shoes per person per year / Days per year
  • = 330 * 6 / 365 = 5.4 million shoes are sold every day

State your assumptions

  • I assumed 6 pair of shoes per person per year

Sense Check

  • Compare with known news. You read an article that an average American owns at least 10-15 shoes.
  • If say they recycle a shoe every 3 years, that will work out to about 5 shoes per year. Our estimate of 6 looks fine.