FBA fees · read November 8, 2026
Amazon storage fee calculator
Amazon charges monthly storage by the cubic foot, and charges about three times as much in October, November and December as it does from January to September. This page shows both, because one monthly figure cannot be right all year.
Monthly storage, both seasons
January to September
$0.08 / unit / month
$0.78 per cubic foot
October to December
$0.24 / unit / month
$2.40 per cubic foot
For 100 units: $8.00 a month in january to september, $24.00 a month in october to december.
Volume 0.102 cubic feet, from your dimensions.
How the fee is worked out
One formula, two rates: length × width × height in inches ÷ 1,728 = cubic feet, then cubic feet × the rate for that month. For a unit measuring 11 × 8 × 2 inches that is 0.102 cubic feet; at 78¢ a cubic foot it costs $0.08 a month from January to September, and $0.24 a month in the fourth quarter. Seller Central
The rate is charged on the space the stock occupies, so ten units of the same product cost ten times as much as one. That is why this page reports the whole-lot figure as well as the per-unit one.
The published rates
Cents per cubic foot per month, as published. The two rate columns are the two seasons, not two ends of a range — every figure here is a rate Amazon states outright.
| Product | January to September | October to December | |
|---|---|---|---|
| Standard-size | 78¢ | 240¢ | non-dangerous |
| Standard-size, dangerous goods | 99¢ | 363¢ | dangerous goods |
| Oversize or bulky | 56¢ | 140¢ | non-dangerous |
| Oversize or bulky, dangerous goods | 78¢ | 243¢ | dangerous goods |
These rates are in force until 2027-01-31. Amazon has not published the rates after that date in the source this site holds, so nothing here is projected past it.
The utilisation surcharge, and when it ends
If your stock sits longer than 30 days while your inventory is high relative to your sales, Amazon adds a surcharge per cubic foot on top of the rate above. It scales with how many weeks of supply you hold:
| Weeks of supply | Standard-size | Oversize | |
|---|---|---|---|
| up to 22 weeks of supply | No surcharge | No surcharge | per cubic foot |
| 23 to 28 weeks | 44¢ | 23¢ | per cubic foot |
| 29 to 36 weeks | 76¢ | 46¢ | per cubic foot |
| 37 to 44 weeks | 116¢ | 63¢ | per cubic foot |
| 45 to 52 weeks | 158¢ | 76¢ | per cubic foot |
| more than 52 weeks | 188¢ | 126¢ | per cubic foot |
This surcharge ends on 2027-02-01. On and after that date the calculator adds nothing for it, because the charge is gone.
Why the fourth quarter costs more
October, November, December are peak months: the fulfilment network is fullest because most sellers hold stock for the holiday period. Amazon charges a higher storage rate for inventory occupying space in those months, which for standard-size stock is roughly 3 times the rest-of-year rate. Sending stock early to avoid the peak rarely helps, because the peak rate applies to the months the stock is stored, not to when it arrived.
Worked example
A standard-size product packed at 11 × 8 × 2 inches is 0.102 cubic feet. For 100 units that is 10.2 cubic feet. From January to September, at 78¢ a cubic foot, that is $7.96 a month. In the fourth quarter, at 240¢ a cubic foot, the same stock costs $24.48 a month. Same stock, same shelf, NaN more in December than in June.
Questions
Why does the page show two monthly costs instead of one?
Because Amazon charges two different rates. From January to September the rate per cubic foot is one figure; in October, November, December it is higher, because that is when most sellers' stock is in the network at once. A single monthly cost would be wrong for four months of the year, so both are shown and neither is averaged.
How is the cubic feet figure calculated?
Length times width times height in inches, divided by 1,728. Amazon states it to three decimals, which is what this page does too, and Amazon bills on the unit’s packed dimensions as it measures them on arrival, not on your unboxed product.
What is the storage utilisation surcharge?
An extra charge per cubic foot for inventory that sits longer than 30 days while your stock level is high relative to your sales. It is charged on top of the normal storage rate, and it ends on 2027-02-01 — after that date this page stops adding it, because the fee no longer exists.
Does this include the aged inventory surcharge?
No. That is a separate charge for stock held over 180 days at Amazon, and it is priced separately. This page covers monthly storage only.
When were these rates read, and how long do they apply?
They were read off Amazon's published storage schedule on November 8, 2026, and Amazon states the rate period runs until 2027-01-31. The 2027 rates are not published in the source we hold, so this page does not extrapolate them.
Is monthly storage per unit or for the whole shipment?
The rate is per cubic foot per month, so you pay for the space the units take up, not a flat fee per unit. Enter your dimensions and the number of units and the page shows both the per-unit and the whole-lot figure.
Rates read on . Before you price a real shipment, check the current schedule. This is an estimate, not a quote from Amazon.