FBA Fee Calculator (2026)
Enter packaged dimensions + weight. Optionally add selling price.
Marketplace: USDim divisor: 139Non-peak fees
Unit Converter
Convert metric ↔ imperial.
Dimension
Value
Unit
Inches (in)
Centimeters (cm)
Weight
Value
Unit
Grams (g)
Kilograms (kg)
Ounces (oz)
Pounds (lb)
Maximum dimensions per tier
(editable defaults in code)
TierMax weightMax dims (L×W×H)Max length + girthUsed for fees
Small standard454 g38.1 × 30.5 × 1.9 cmUnit weight
Large standard9.07 kg45.7 × 35.6 × 20.3 cmMax(unit vs dim)
Small bulky22.68 kg152.4 × 76.2 × 76.2 cm330.2 cmMax(unit vs dim)
Large bulky22.68 kg274.3 × 83.8 × 83.8 cm330.2 cmMax(unit vs dim)
Extra-large68.04 kgMax(unit vs dim)
If your Seller Central size-tier limits differ, edit SIZE_TIER_LIMITS near the top of the file.
Inputs
Packaged measurements (the box you ship to FBA).
System (for Inputs + Results)
This converts the already-entered numbers and switches the system.
Dimension unit
cm
Weight unit
Dim A
cm
Dim B
cm
Dim C
cm
Weight
g
Selling price (optional)
If set, the app auto-selects the Seller Central price band.
Selling price (USD)
$
Price band (only used if price is blank)
Referral %
%
Min referral fee
$
Results
Tier + shipping weight + fees.
Size tier
Weight band
Price band used$10–$50
FBA fulfillment fee$
Referral fee$0.00 (price not set)
Total Amazon fees (Fulfillment + Referral)$
Normalized dims (L×W×H)
Length + girth
Unit weight
Dimensional weight
Weight used
Shipping weight (rounded)
Rounding
Fulfillment fee by price band (same tier + weight)
<$10
$
$10–$50
$
>$50
$
Tier comparison (lower / current / higher)
Lower tier
Current tier
$
Higher tier
To move down to lower tier
Based on your current measurements
Headroom in current tier fee steps
Factors effective billing weight = max(unit, dimensional) (except Small Standard).
Tier comparison fees use the same inputs, but apply the other tier’s rounding rules + fee table.
2026 Fee tables
Exact numbers from your Excel (Seller Central).
Small standard — 2026 fulfillment fees
Non-peak • Excl. apparel • 38.1 × 30.5 × 1.9 cm (Max dims)
Shipping weight<$10$10–$50>$50Variable add-on
≤ 57 g$2.43$3.32$3.58
57+ to 113 g$2.49$3.42$3.68
113+ to 170 g$2.56$3.45$3.71
170+ to 227 g$2.66$3.54$3.80
227+ to 283 g$2.77$3.68$3.94
283+ to 340 g$2.82$3.78$4.04
340+ to 397 g$2.92$3.91$4.17
397+ to 454 g$2.95$3.96$4.22
Large standard — 2026 fulfillment fees
Non-peak • Excl. apparel • 45.7 × 35.6 × 20.3 cm (Max dims)
Shipping weight<$10$10–$50>$50Variable add-on
0+ to 113 g$2.91$3.73$3.99
113+ to 227 g$3.13$3.95$4.21
227+ to 340 g$3.38$4.20$4.46
340+ to 454 g$3.78$4.60$4.86
0.45+ to 0.57 kg$4.22$5.04$5.30
0.57+ to 0.68 kg$4.60$5.42$5.68
0.68+ to 0.79 kg$4.75$5.57$5.83
0.79+ to 0.91 kg$5.00$5.82$6.08
0.91+ to 1.02 kg$5.10$5.92$6.18
1.02+ to 1.13 kg$5.28$6.10$6.36
1.13+ to 1.25 kg$5.44$6.26$6.52
1.25+ to 1.36 kg$5.85$6.67$6.93
1.36+ to 9.07 kg$6.15$6.97$7.23+ $0.08 / 113 g above 1.36 kg
Small bulky — 2026 fulfillment fees
Non-peak • Excl. apparel • 152.4 × 76.2 × 76.2 cm (Max dims)
Shipping weight<$10$10–$50>$50Variable add-on
≤ 22.68 kg$6.78$7.55$7.55+ $0.38 / 0.45 kg above 0.45 kg
Large bulky — 2026 fulfillment fees
Non-peak • Excl. apparel • 274.3 × 83.8 × 83.8 cm (Max dims)
Shipping weight<$10$10–$50>$50Variable add-on
≤ 22.68 kg$8.58$9.35$9.35+ $0.38 / 0.45 kg above 0.45 kg
Extra-large — 2026 fulfillment fees
Non-peak • Excl. apparel • —
Shipping weight<$10$10–$50>$50Variable add-on
≤ 22.68 kg$25.56$26.33$26.33+ $0.38 / 0.45 kg above 0.45 kg
22.68+ to 31.75 kg$36.55$37.32$37.32+ $0.75 / 0.45 kg above 23.13 kg
31.75+ to 68.04 kg$50.55$51.32$51.32+ $0.75 / 0.45 kg above 32.21 kg
68.04+ to 4535.92 kg$194.18$194.95$194.95+ $0.19 / 0.45 kg above 68.49 kg
Reminder: validate final fees with Amazon Fee Preview / Revenue Calculator.