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Amazon FBA storage fee formula
Multiply packaged dimensions in inches and divide by 1,728 to convert one unit to cubic feet.
CalculatorsFREE · NO SIGNUP
Amazon FBA Storage Fee Calculator
Estimate one month of U.S. FBA storage from packaged dimensions, units, size tier, and month with current rates shown.
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01 USE IT NOW02 NO ACCOUNT03 FIELD NOTES BELOW
WORKING INPUTS
Build the monthly FBA volume estimate.
LIVE RESULT
Estimated monthly storage
$43.33Base monthly storage estimate only; Amazon surcharges and other fees are excluded.UNIT VOLUME0.5556 ft³
BATCH VOLUME55.5556 ft³
APPLIED RATE$0.78 / ft³
RATE PERIODJanuary–September
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THE SPACE BEHIND THE SKU
Translate packaged inches into a monthly storage estimate.
FBA storage starts with packaged cubic volume. The selected size tier and month then connect that volume to Amazon's current published base rate.
WORKING VIEW
$43.33100 STANDARD UNITS · JAN–SEP
METHODL × W × H ÷ 1,728 × units × current rate
WORKING NOTE55.5556 cubic feet · $0.78 per cubic foot
INPUTS → CLEAR OUTPUT
THE FIELD NOTES
Quick answer above. Better decisions below.
Use the result now, then read the practical notes for assumptions, examples, limitations, and the choices behind it.
100 STANDARD UNITS · JAN–SEP$43.33
55.5556 cubic feet · $0.78 per cubic foot
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Current standard and oversize rates
Amazon currently lists standard-size storage at $0.78 per cubic foot from January through September and $2.40 from October through December.
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Use packaged dimensions and average volume
Amazon describes monthly storage as based on daily average volume for units packaged and ready to ship.
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What the estimate excludes
This estimate excludes dangerous-goods rates, storage-utilization surcharges, aged inventory, inbound placement, fulfillment, removals, and other fees.
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Amazon FBA storage fee formula
Multiply packaged dimensions in inches and divide by 1,728 to convert one unit to cubic feet.
Multiply by average stored units and the published rate for the selected size tier and month.
Current standard and oversize rates
Amazon currently lists standard-size storage at $0.78 per cubic foot from January through September and $2.40 from October through December.
Oversize rates are $0.56 and $1.40 for those same periods. Confirm current rules before acting.
Use packaged dimensions and average volume
Amazon describes monthly storage as based on daily average volume for units packaged and ready to ship.
A simple average-unit estimate may differ from Amazon's actual daily inventory measurements.
What the estimate excludes
This estimate excludes dangerous-goods rates, storage-utilization surcharges, aged inventory, inbound placement, fulfillment, removals, and other fees.
Confirm tier, measurements, and ledger amounts in Seller Central.
Questions, answered.
How is monthly FBA storage estimated?
Convert packaged unit volume to cubic feet, multiply by average stored units, then multiply by the current size-tier and seasonal rate.
Why is October through December higher?
Amazon publishes higher base monthly storage rates for the October-through-December peak period.
Does this include every Amazon inventory fee?
No. It excludes surcharges, aged inventory, dangerous goods, fulfillment, inbound placement, and other charges.
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