Is Prime worth it
How Many Orders a Month Makes Prime Worth It?
This one has an actual answer, and it is a division rather than an opinion. Take your effective monthly plan cost. Divide it by what one order costs you to ship without a membership. The result is the number of orders per month at which the Prime membership stops being a cost and starts being a saving.
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The formula, in words
Break even orders per month equals your monthly plan cost divided by the shipping cost of one order. If an annual plan is the one you have, divide the annual figure by twelve first, so both sides of the comparison speak per month.
Every other consideration is a modifier on that number, not a replacement for it. The perks outside shipping can tip a close result, but they cannot rewrite the division.
What actually counts as an order
Only the orders the membership changed. That is the part people get wrong, and it inflates the case for joining.
- Counts: an order you would have paid to ship without the membership.
- Does not count: an order that would have cleared the non member free shipping minimum and shipped free anyway.
- Does not count: an order you placed only because the membership made it feel cheaper. That is the membership creating demand, not paying for itself.
Run the count with the honest set of orders, and the number gets smaller and more useful.
Here is the part nobody says out loud. The formula is not the hard part. Honesty about order volume is, and that is the one input only you can supply.
Finding your own number
Your order history is the best source, and you already have it. Count a typical month, not your busiest one, because a holiday spike makes almost any subscription look good in December and bad in July.
Then compare that count to the break even figure. Above the line, join or keep it. Below the line, the honest answer is that you are paying for delivery you are not using. If you are near the line, the perks decide it, and the per perk scores are the way to weigh those honestly.
Buy it if your honest monthly order count clears the break even number.
Skip it if most of your orders would have shipped free anyway. Counting the orders you would not have shipped is how people talk themselves into a subscription.
Read the whole calculation in the is Prime worth it guide, then run your own numbers in the break even calculator.
Plan structure, shipping terms, and the non member shipping minimum are set by Amazon and described from Amazon’s published help pages, checked 2026-09-26. Current figures are shown on your own account.
TuesdayScore™ and The Perk Index™ are trademarks of The Perk Index.