Showing the estimated delivery date on the product page (“get it by Tuesday the 19th”) is one of the interventions with the best ratio between implementation cost and conversion improvement. Done well, it increases the add-to-cart rate and reduces abandonment caused by uncertainty. Done poorly, it generates returns and brand damage.
Why the date matters
Every visitor to an online store carries an implicit question about any product they’re considering: “when will I actually get it?” Without a clear answer, that doubt is friction. With a clear answer, it stops being a problem and the decision moves forward.
Why it improves conversion
- Stores that show an estimated delivery date on the product page tend to convert better than stores that only show a generic “shipped in 24h”: uncertainty about when an order will arrive is one of the most common doubts before buying.
- A specific date (“get it by Tuesday”) converts better than a generic window (“in 2-4 business days”), even when the underlying information is identical.
- Showing the date from the category page too — not only inside the product page — helps customers reach the product page already decided, instead of discovering the timeframe at the end of the process.
The cognitive explanation: a specific date is concrete information the customer can process and compare against their own calendar. A generic window forces mental math, which adds friction and translates into abandonment.
What a correct calculation needs
Calculating the estimated date honestly means combining several factors: real product stock, the order cutoff time for same-day shipping, warehouse and carrier holidays and weekends, transit time by destination (mainland 24-48h, Balearic Islands 48-72h, Canary Islands 72-96h) and extra days for special destinations. The number shown to the customer is the honest sum of these components: promising “Tuesday the 19th” and delivering on Friday is worse than having said “between Tuesday the 19th and Friday the 22nd” with a sensible margin.
Optimistic date
Promises something the warehouse or carrier can’t consistently deliver on. It lifts initial conversion, but drives up support tickets, “arrived late” returns and negative reviews.
Honest date
Met consistently. The balance over the medium term is positive — it avoids the hidden cost to LTV and reputation that comes with a broken promise.
Where to show it
Three places where the date pulls its weight: near the add-to-cart button (the decision point, where the timeframe matters most), on the stock line (“in stock, get it by X,” combining availability and timeframe in a single line) and on the cart and checkout pages, to reinforce the decision during the purchase flow. What doesn’t work: tucking the date into a secondary tab of the product page that almost nobody scrolls to.
A less common but measurable improvement: showing the date on category and search product cards too. It lets customers compare products by timeframe as well as price — decisive for last-minute gifts, urgent spare parts or fresh food. If a product ships slowly, customers would rather know before spending time evaluating it than get the surprise on the product page.
Frequently asked questions
How much does showing the estimated delivery date increase conversion?
There’s no universal figure — it depends on each store’s catalog and traffic — but showing it tends to improve conversion compared to a generic “shipped in 24h,” because it removes a common doubt before buying. Showing it in listings too helps customers reach the product page with the timeframe already factored in.
Is a specific date better than a range of days?
A specific date (“get it by Tuesday”) converts better than a generic window (“2-4 business days”), even when the underlying information is the same — it’s simply easier for the customer to process.
Where should the date sit on the product page?
Near the add-to-cart button, which is the decision point. The stock line and the cart/checkout pages are secondary locations that reinforce the information.
What happens if the shown date isn’t met?
Support tickets, “arrived late” returns, negative reviews and lost repeat customers all rise. The medium-term balance is usually negative if the date isn’t met consistently.
Showing the right date shouldn’t depend on manual calculations on every product page.
See how Zeyvro Delivery Date does it →Zeyvro builds PrestaShop 8 modules from a real store in production. Unobfuscated code.