Amazon Shipping Calculator
Amazon FBA charges pick and pack plus weight handling plus inbound freight you pay to send inventory to Amazon, while FBM charges carrier label plus your pick/pack labor plus packaging. This calculator compares true per-unit shipping cost for both methods, factoring item weight, size tier, packaging, and order quantity, so you can pick the cheaper fulfillment path per SKU and know when to switch from FBA to FBM for heavy or slow-moving items.
Instant calculations · Editable fee assumptions · Export-ready results
Inputs
Values update results instantly. Adjust fee assumptions to match your seller dashboard.
Method
Your current method to highlight cost.
FBA
FBA pick/pack fee from Amazon rate card.
Weight-based handling fee.
Your cost to ship to Amazon warehouse per unit.
Packaging
Polybag, label, prep for FBA.
FBM
Actual carrier cost per order.
Your labor cost to pick/pack.
Box, bubble, tape per unit.
Product
Actual weight in ounces.
Amazon FBA size tier.
Order
Units to calculate totals.
Results
Live estimates based on your inputs and editable fee assumptions.
FBA cost per unit
$4.90
Pick+pack + weight + inbound + packaging.
FBM cost per unit
$5.60
Label + pick/pack + packaging.
Cost difference per unit (FBM-FBA)
$0.70
Positive means FBA cheaper.
Cheaper method
FBA
Lower cost fulfillment.
Total savings for quantity
$0.70
Savings choosing cheaper method for batch.
FBA total for batch
$4.90
FBA cost times quantity.
FBM total for batch
$5.60
FBM cost times quantity.
Weight tier insight
Small standard 8oz fits 1lb tier. Keep under 16oz to avoid large standard jump ~$0.50-$1.
How weight impacts tier.
What this means
FBA $4.90/unit vs FBM $5.60/unit. Cheaper: FBA saves $0.70/unit, $0.70 total for 1 units. Small standard 8oz fits 1lb tier. Keep under 16oz to avoid large standard jump ~$0.50-$1.
FBA vs FBM shipping cost comparison
Interactive breakdown of fees, costs, and remaining profit.
Distribution
- FBA pick & pack$2.5023.8%
- FBA weight handling$1.5014.3%
- Inbound + packaging$0.908.6%
- FBM carrier label$4.0038.1%
- FBM labor + pack$1.6015.2%
Total $10.50 · 5 segments · interactive
Line-item breakdown
Dollar amounts, share of revenue, and visual proportion.
- FBA pick & pack
- $2.50
- FBA weight handling
- $1.50
- Inbound to FBA
- $0.50
- FBA packaging
- $0.40
- FBA cost per unit
- $4.90
- FBM carrier label
- $4.00
- FBM pick & pack
- $1.00
- FBM packaging
- $0.60
- FBM cost per unit
- $5.60
- Difference per unit (FBM-FBA)
- $0.70
- FBA total batch
- $4.90
- FBM total batch
- $5.60
Assumptions used
- • FBA per unit $4.90 = pick $2.50 + weight $1.50 + inbound $0.50 + prep $0.40
- • FBM per unit $5.60 = label $4.00 + labor $1.00 + pack $0.60
- • Tier small_standard at 8oz = 0.50lb
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Amazon Shipping Calculator
Generated 8/4/2026, 2:54:28 PM · Currency USD
Inputs
- Primary fulfillment method: fba
- FBA pick & pack per unit: 2.5
- FBA weight handling per unit: 1.5
- Inbound to FBA per unit: 0.5
- FBA prep packaging per unit: 0.4
- FBM carrier label per order: 4
- FBM pick & pack labor per unit: 1
- FBM packaging per unit: 0.6
- Item weight (oz): 8
- Size tier: small_standard
- Quantity in order batch: 1
Results
- FBA pick & pack: $2.50
- FBA weight handling: $1.50
- Inbound to FBA: $0.50
- FBA packaging: $0.40
- FBA cost per unit: $4.90
- FBM carrier label: $4.00
- FBM pick & pack: $1.00
- FBM packaging: $0.60
- FBM cost per unit: $5.60
- Difference per unit (FBM-FBA): $0.70
- FBA total batch: $4.90
- FBM total batch: $5.60
Interpretation
FBA $4.90/unit vs FBM $5.60/unit. Cheaper: FBA saves $0.70/unit, $0.70 total for 1 units. Small standard 8oz fits 1lb tier. Keep under 16oz to avoid large standard jump ~$0.50-$1.
How it works
Methodology & formulas
This calculator is transparent by design. Review the steps and formulas so you can trust the estimate and adjust assumptions when your dashboard differs.
Calculation steps
- 1FbaCostPerUnit = pickPack + weightHandling + inbound + packagingPerUnit.
- 2FbmCostPerUnit = fbmShippingLabel + fbmPickAndPack + fbmPackaging.
- 3CostDifferencePerUnit = fbmCost − fbaCost. Positive means FBA cheaper.
- 4Total difference = |costDifference| × quantity.
- 5Weight tier note derived from item weight ounces and size tier selection for educational guidance.
Formulas
- FBA per unit = pick&pack + weight + inbound + packaging
- FBM per unit = carrier label + pick labor + packaging
- Difference = FBM per unit − FBA per unit
- Total difference = difference × quantity
Important assumptions
- FBA per-unit = fbaPickAndPack + fbaWeightHandling + inboundToFbaPerUnit + packagingPerUnit.
- FBM per-unit = fbmShippingLabel + fbmPickAndPack + fbmPackaging when quantity 1, averages same per unit for batch.
- Size tier affects FBA rate card but input fees already reflect tier; tier field provides context only, not auto-fee lookup.
- Dimensional weight noted in weight insight but not auto-calculated — user should include dimensional impact in weight handling fee input.
- Cheaper method is lower per-unit total.
Worked example
8oz small standard item — FBA vs FBM
Small standard 8oz, FBA pick $2.50 weight $1.50 inbound $0.50 packaging $0.40, FBM label $4.00 pick $1.00 packaging $0.60, quantity 1.
FAQ
Common questions
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