FBA Fee Calculator (2026)
Enter packaged dimensions + weight. Optionally add selling price.
Marketplace: USDim divisor: 139Non-peak fees
Unit Converter
Convert metric ↔ imperial.
Dimension
| Inches (in) | – |
| Centimeters (cm) | – |
Weight
| Grams (g) | – |
| Kilograms (kg) | – |
| Ounces (oz) | – |
| Pounds (lb) | – |
Maximum dimensions per tier
(editable defaults in code)
| Tier | Max weight | Max dims (L×W×H) | Max length + girth | Used for fees |
|---|
| Small standard | 454 g | 38.1 × 30.5 × 1.9 cm | — | Unit weight |
| Large standard | 9.07 kg | 45.7 × 35.6 × 20.3 cm | — | Max(unit vs dim) |
| Small bulky | 22.68 kg | 152.4 × 76.2 × 76.2 cm | 330.2 cm | Max(unit vs dim) |
| Large bulky | 22.68 kg | 274.3 × 83.8 × 83.8 cm | 330.2 cm | Max(unit vs dim) |
| Extra-large | 68.04 kg | — | — | Max(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.
Selling price (optional)
If set, the app auto-selects the Seller Central price band.
Price band (only used if price is blank)
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)
Tier comparison (lower / current / higher)
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 | >$50 | Variable 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 | >$50 | Variable 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 | >$50 | Variable 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 | >$50 | Variable 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 | >$50 | Variable 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.