learn › Growth & Marketing Math

Funnels

lesson · about 3 minutes

Follow leads to customers, stage by stage.

In your head, jot if needed · no calculator why?

Opens at level 10. You're level 1. You can read and practice here now.

the idea

A funnel follows people from one stage to the next: leads to meetings to customers. Each stage's conversion rate is the share of the stage before it that moves on.

Because each rate is a share of the stage before, rates multiply through a funnel; they never add. If half of leads book a meeting and one fifth of meetings buy, then 0.5 × 0.2 = 0.1, so 10% of leads become customers, not 70%.

A funnel gives an expected count, not a promise.

techniques

Multiply stage by stage

Going forward: leads to customers, or an overall rate.

  1. Write each rate as a decimal: a quarter is 0.25, 40% is 0.4.
  2. Multiply the leads by the first rate to get the next stage.
  3. Multiply that by the second rate. For an overall rate, multiply the two rates.
worked example

Example: A design studio has 800 leads. Assume 25% book a meeting and 20% of meetings become customers. How many customers does that funnel give?

  1. 800 × 0.25 = 200 meetings.
  2. 200 × 0.2 = 40 customers.

Answer: 40

more: Know the equivalents

Divide backward, round up

How many leads you need for a target number of customers.

  1. Find the overall rate: multiply the stage rates.
  2. Divide the target by the overall rate.
  3. Round up to whole leads. Rounding down falls short.
worked example

Example: Assume 40% of leads book a demo and 40% of demos become customers. How many leads do you need for 10 new customers? (Round up to whole leads.)

  1. 0.4 × 0.4 = 0.16.
  2. 10 ÷ 0.16 = 62.5.
  3. Round up: 63 leads.

Answer: 63

Later stage over earlier stage

The conversion rate of one stage.

  1. Put the later stage on top and the earlier stage underneath.
  2. Divide, then multiply by 100 for a percent.
worked example

Example: 320 visitors produced 40 sign-ups. What is the visitor-to-sign-up conversion rate, as a percent?

  1. 40 ÷ 320 = 0.125.
  2. 0.125 = 12.5%.

Answer: 12.5%

watch out for

practice

Sign in to try one

Customers from a funnel

worked example

You have 600 leads. Assume 20% book a meeting and 10% of meetings become customers. How many customers does that funnel give?

Answer: 12

  1. Each stage uses the stage before it as its base.
  2. 600 × 0.2 = 120 meetings; 120 × 0.1 = 12 customers.

Overall conversion rate

worked example

Assume 75% of leads book a meeting and one fifth of meetings become customers. What percentage of leads become customers?

Answer: 15%

  1. Multiply the stage rates: 0.75 × 0.2 = 0.15 = 15%.

Leads needed for a target

worked example

Assume 25% of leads book a demo and 50% of demos become customers. How many leads do you need for 60 new customers? (Round up to whole leads.)

Answer: 480

  1. Overall rate = 0.25 × 0.5 = 0.125.
  2. Leads = 60 ÷ 0.125 = 480.

Stage conversion rate

worked example

270 free trials produced 54 paid customers. What is the trial-to-paid conversion rate, as a percent?

Answer: 20%

  1. 54 ÷ 270 = 0.2 = 20%.

Sign in to start