LoanPay Logic

Tool Hub

Amazon FBA Calculator

Ecommerce tools

Amazon FBA Storage Fee Calculator

Free professional tool

Know your FBA storage costs before you ship.

This premium calculator helps Amazon sellers estimate monthly storage fees, Q4 peak season costs, and long-term storage charges. Plan your inventory investments with confidence.

2026 RatesQ4 Peak AwareHazmat Support
Amazon fulfillment warehouse with organized inventory shelves

FBA Ready

Professional inventory cost planning with accurate, up-to-date Amazon fee structures.

Accurate Rate Calculation

Based on official Amazon FBA 2026 storage fee rates for all product types and seasons.

Q4 Peak Season Alerts

Instantly see how peak season storage fees impact your margins with seasonal rate comparisons.

Hazmat Fee Support

Calculate additional charges for dangerous goods requiring specialized warehouse handling.

Storage Fee Calculator

Enter your product details below

Formula: (L × W × H) / 1728

Estimated Storage Fee

$0.00

Per Day

$0.00

Per Month

$0.00

Fee Breakdown

Volume0 cu ft
Days Stored30 days
Size TierStandard Size
Total Estimated Cost$0.00

Frequently Asked Questions

Everything you need to know about Amazon FBA storage fees

What are Amazon FBA storage fees?

Amazon FBA (Fulfillment by Amazon) storage fees are charges for storing your inventory in Amazon's fulfillment centers. These fees vary by time of year, with higher rates during the October-December holiday peak season.

Why are Q4 (October-December) fees higher?

Amazon charges significantly higher storage fees from October through December due to increased demand for warehouse space during the holiday shopping season. Sellers should plan their inventory accordingly to avoid unexpected costs.

How is the cubic feet measurement calculated?

Volume is calculated using the standard industry formula: (Length x Width x Height) / 1728. Amazon measures in inches, so you divide by 1728 to convert to cubic feet. You can find this in your inventory dashboard or product details.

What's the difference between standard and oversize items?

Standard size items are under 18 lbs, with dimensions under 15" x 12" x 8.4". Oversize items exceed these thresholds and generally have lower per-cubic-foot rates but may incur additional handling fees.

What are dangerous goods (hazmat) storage fees?

Dangerous goods require special handling and storage conditions, resulting in higher fees. Items like lithium batteries, aerosols, and certain chemicals fall into this category and are charged at elevated rates.

2026 Storage Fee Rates Reference

Official Amazon FBA storage fee rates per cubic foot per month

Size TierJan - SepOct - DecHazmat (Jan-Sep)Hazmat (Oct-Dec)
Standard Size$0.78$2.40$0.93$2.88
Oversize$0.56$1.20$0.67$1.44
Rates are subject to change. Always verify current rates on Amazon Seller Central.

What Are Amazon FBA Storage Fees?

Amazon FBA (Fulfillment by Amazon) storage fees are charges applied to sellers who store their inventory in Amazon's fulfillment centers. When you use FBA, Amazon handles storage, picking, packing, and shipping your products to customers.

These fees are calculated based on the volume of space your products occupy in Amazon's warehouses, measured in cubic feet. The fees vary throughout the year, with significantly higher rates during the October through December holiday season when warehouse space is in highest demand.

Understanding these costs is essential for maintaining healthy profit margins on Amazon. Many new sellers are surprised by storage fees during Q4, which can dramatically reduce profitability if not properly accounted for in product pricing.

How to Use This Calculator

Using our Amazon FBA storage fee calculator is straightforward. Follow these steps to get accurate estimates:

  1. 1Select your product size tier — Choose between Standard Size and Oversize based on your product dimensions and weight.
  2. 2Choose your storage period — Select whether you're storing items during January-September or October-December (Q4 peak season).
  3. 3Enter your product volume — Calculate your volume in cubic feet using the formula (L × W × H) / 1728.
  4. 4Specify storage duration — Enter the number of days you expect to store your inventory.
  5. 5Indicate hazmat status — If your product contains dangerous goods, select Yes for accurate rates.

Why You Should Calculate Storage Fees Proactively

Many Amazon sellers underestimate the impact of storage fees on their bottom line. By calculating these costs before sending inventory to FBA, you can:

  • Price products accurately — Factor in all fulfillment costs to maintain target profit margins.
  • Avoid Q4 surprises — Understand how peak season affects your storage costs before launching seasonal products.
  • Optimize inventory levels — Balance inventory turnover with storage costs to minimize long-term fee exposure.
  • Plan for long-term storage — Identify products that may incur additional fees if they don't sell within 365 days.
  • Compare fulfillment options — Decide whether FBA or FBM (Fulfilled by Merchant) is more cost-effective for specific products.
WhatsApp