What is purchase frequency?
Nicklas Segatz Mortensen · Growth Hacker · Fractional CMO · Meta Ads Nerd · 8 July 2026 · 3 min.
Definition
Purchase frequency is the average number of purchases per customer in a given period. If a customer buys 2.4 times a year on average, the annual purchase frequency is 2.4.
Also called: Purchase frequency, Purchase Frequency, Order Frequency
Sådan virker det
CLTV er den samlede profit, en kunde giver over sin levetid — ikke kun på første køb. Jo flere gange kunden vender tilbage, jo mere har du råd til at betale for at vinde ham.
01Purchase frequency in the CLTV equation
CLTV = average order value × margin × number of purchases over the lifetime. Purchase frequency is the last factor — and often the easiest to move, because it's about getting existing, happy customers to come back a little more often.
Lift frequency from 2 to 3 purchases a year without touching AOV or margin, and CLTV rises by 50%. And because these are existing customers, the lift costs no new acquisition — it's pure retention economics.
02Purchase frequency and payback
Frequency affects not only how much the customer is worth, but how fast. If the customer buys more often, CAC is recouped sooner, the payback period shortens, and capital can recirculate to the next customer. Frequency is therefore both a CLTV driver and a cash-flow driver.
The strongest levers are timed contact (replenishment just before the product runs out), relevant cross-sell, and for the right products, subscription, which makes frequency predictable.
Frequently asked questions
How are purchase frequency and CLTV related?+
Frequency is one of the three factors in CLTV (order value × margin × number of purchases). More purchases per customer lift customer value directly — and because these are existing customers, the lift costs no new acquisition.
Does purchase frequency affect my payback period?+
Yes. If the customer buys more often, the acquisition cost is recouped sooner, payback shortens, and capital can be reinvested faster in the next customer.
Related terms
Glossary
What is CLTV?
CLTV (Customer Lifetime Value) is the total gross profit an average customer contributes across their entire lifetime as a customer — from first purchase to last.
Read the entry →Glossary
What is repeat purchase rate?
Repeat purchase rate is the share of customers who have made more than one purchase. If 35% of customers have come back, the repeat purchase rate is 35%.
Read the entry →Glossary
What is payback period?
Payback period (CAC payback) is the time it takes before the profit a new customer generates has covered what it cost to acquire them. The shorter the payback, the faster capital can be reinvested in growth.
Read the entry →Glossary
What is AOV?
AOV (Average Order Value) is your total revenue divided by the number of orders in a given period. It's what an average customer puts in the cart per purchase.
Read the entry →
Nicklas Segatz Mortensen
Growth Hacker · Fractional CMO · Meta Ads Nerd at Oaksmond
Growth hacker and fractional CMO with 10+ years' experience and hundreds of millions in managed ad spend behind him. Background from larger Danish and international scale-ups, and from the agency world.
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