How much does it cost to post a paperback book?

UK postage prices for a paperback book, compared across Royal Mail, Evri and InPost.

The cheapest way to post a paperback book is Evri ParcelShop to ParcelShop for £2.62.

Based on a typical packed size of 24 × 17 × 3cm and weight of 350g (Royal Mail size: Small Parcel).

Check your exact size & weight

All options for a paperback book

ServiceSpeedTrackedPrice
Evri ParcelShop to ParcelShop
Drop at a ParcelShop; recipient collects from their chosen shop
Usually 2-4 working days (recipient collects)Yes£2.62
Evri Postable (letterbox) parcel
Book online, drop at an Evri ParcelShop or locker
Usually 2-3 working daysYes£2.70
InPost Locker to locker - Small (A)
Drop in any InPost locker 24/7 - no printer needed
Usually 1-3 working days (recipient collects)Yes£2.99 approx.
Evri Small parcel
Book online, drop at an Evri ParcelShop or locker
Usually 2-3 working daysYes£3.04
InPost Locker to locker - Medium (B)
Drop in any InPost locker 24/7 - no printer needed
Usually 1-3 working days (recipient collects)Yes£3.49 approx.
Royal Mail Tracked 48 (bought online)
Print label online, drop at Post Office, postbox or collection
Aims for 2-3 working daysYes£3.75
InPost Locker to locker - Large (C)
Drop in any InPost locker 24/7 - no printer needed
Usually 1-3 working days (recipient collects)Yes£3.99 approx.
Evri Standard parcel
Book online, drop at an Evri ParcelShop or locker
Usually 2-3 working daysYes£3.99 approx.
Royal Mail 2nd Class Small Parcel
Post Office counter or stamps
Aims for 2-3 working daysNo£4.60
Royal Mail Tracked 24 (bought online)
Print label online, drop at Post Office, postbox or collection
Aims for next working dayYes£4.80

Prices from 5 October 2026, last checked 1 October 2026. Prices marked approx. are our best estimate – confirm with the carrier before paying.

Royal Mail or a courier?

The cheapest Royal Mail option is Tracked 48 (bought online) at £3.75, and the cheapest courier is Evri ParcelShop to ParcelShop at £2.62 – so for a paperback book, a courier is cheaper by £1.13. Royal Mail delivers to the door and you can hand it in at any Post Office; courier drop-off services are often cheaper but may need the recipient to collect from a shop or locker.

How to pack a paperback book for posting

  1. Measure the book's spine. If it is under about 2cm thick, a book wrap mailer can keep it within the 2.5cm Large Letter limit.
  2. Use a cardboard book wrap rather than a padded envelope - it protects the corners much better.
  3. For thicker paperbacks, a snug box or wrap that keeps the parcel under 45 x 35 x 16cm keeps it a Small Parcel.
  4. Weigh the packed book - most paperbacks are 200-450g, well within any Small Parcel band.

Common mistake: A paperback that's 2.6cm thick once packed costs a Small Parcel price, not a Large Letter price - more than double. Check the thickness before buying postage.

Good to know

If you sell books regularly, compare tracked online services with couriers - books are dense, so couriers that price by weight band can be very good value up to 1-2kg.

What if yours is heavier?

Weight changes the price, so here is the cheapest option at the same size but heavier weights.

Packed weightCheapestService
350g£2.62Evri ParcelShop to ParcelShop
525g£2.62Evri ParcelShop to ParcelShop
700g£2.62Evri ParcelShop to ParcelShop

Frequently asked questions

What is the cheapest way to post a paperback book?
The cheapest way to post a paperback book is Evri ParcelShop to ParcelShop for £2.62. Prices are based on a typical packed size; check your own item in our calculator.
Is a paperback book a large letter or a parcel?
Packed at around 24 × 17 × 3cm and 350g, a paperback book is usually a Royal Mail Small Parcel.
What is the cheapest tracked option for a paperback book?
Evri ParcelShop to ParcelShop at £2.62.

How much to post other things