What is repeat purchase rate?

The percentage of customers who make more than one purchase over a given period.

How is repeat purchase rate calculated?

Repeat customers divided by total customers over the period — 250 of 1,000 buyers returning is a 25% rate.

Why does repeat purchase rate matter?

Selling again to existing customers is far cheaper than acquiring new ones, so a healthy repeat rate is what makes ecommerce profitable.

Growth Marketing Glossary

Repeat Purchase Rate

noun

What share of buyers come back — the cleanest read on whether a store earns loyalty or just rents one-time strangers.

Schematic — the share who buy again

Term: Repeat Purchase Rate
Part of speech: Noun
Field: Ecommerce / Retention
Formula: Repeat buyers ÷ total buyers

Forms & parts of speech

repeat purchase rate · noun

Share of customers who rebuy.

"A rising repeat purchase rate meant the brand was finally earning loyalty, not just sales."

Definition in plain terms

Repeat purchase rate is the percentage of customers who buy more than once in a given period. If 1,000 people bought from you and 250 of them bought again, your repeat purchase rate is 25%. It's a direct measure of whether customers come back — a core signal of loyalty and product satisfaction for ecommerce and consumer brands.

The mechanics

The formula is repeat customers ÷ total customers over the period. It's closely tied to retention and to lifetime value: a higher repeat rate means each acquired customer is worth more, which loosens the constraint on acquisition cost. It's influenced by product quality, post-purchase experience, lifecycle marketing, and how naturally repeatable the product is (consumables repeat more than one-off durables).

When it matters

Repeat purchase rate matters because acquiring a new customer is far more expensive than selling again to an existing one, so a healthy repeat rate is what makes ecommerce economics work. It matters most for consumable and replenishable products. A low repeat rate signals the business is a leaky bucket — pouring acquisition spend into customers who never return.

Worked example. A coffee brand discovers only 12% of customers ever buy a second time — it's been renting one-time buyers and re-spending to replace them. It adds a post-purchase email flow, a subscribe-and-save option, and a loyalty perk. Repeat purchase rate climbs to 30%, lifetime value rises, and the same acquisition spend now compounds instead of leaking away.

Failure modes to watch. Optimizing only for first purchases while the repeat rate leaks; ignoring post-purchase experience and lifecycle marketing; comparing repeat rates across very different product types; and measuring over too short a window for the product's natural cycle.

Synonyms & antonyms

Synonyms

repeat purchase raterepeat customer raterebuy rate

Antonyms

one-time purchasechurn

Usage trends

Search interest for this term over the last five years:

View interest-over-time on Google Trends →

Common questions

What is repeat purchase rate?: The percentage of customers who make more than one purchase over a given period.
How is repeat purchase rate calculated?: Repeat customers divided by total customers over the period — 250 of 1,000 buyers returning is a 25% rate.
Why does repeat purchase rate matter?: Selling again to existing customers is far cheaper than acquiring new ones, so a healthy repeat rate is what makes ecommerce profitable.

Related tools & calculators

toolLTV calculator

Resources & people to follow

bookThe Automatic Customer — John Warrillow
referenceShopify — retention research
thought leaderLean Analytics — Croll & Yoskovitz

Curated, non-competitor resources verified per term.

Related training

moduleSubscription growth

Disciplines

Areas of marketing where repeat purchase rate is a core concern:

Retention / CRMEcommerce analytics

Sources

trendsGoogle Trends — "repeat purchase rate"