Calculate ROI on wholesale purchases before you commit to buying.
Product details
Enter buy and sell prices to calculate your wholesale ROI
Amounts are in S$. Amazon's fees are part of your costs on Amazon Singapore; these are the figures fba.tools uses for them.
| Size tier | Fee |
|---|---|
| Small | S$3.87 |
| Standard | S$6.55 |
| Medium | S$9.78 |
| Large | S$14.22 |
| Extra Large | S$22.50 |
| Category | Rate |
|---|---|
| Automotive | 12% |
| Baby | 15% |
| Books | 15% |
| Clothing | 15% |
| Electronics | 8% |
| Garden | 15% |
| Health & Beauty | 15% |
| Home & Kitchen | 15% |
| Jewellery | 20% |
| Kitchen | 15% |
| Music | 15% |
| Office | 15% |
| PC | 8% |
| Pet Supplies | 15% |
| Sports | 15% |
| Toys & Games | 15% |
| Video Games | 15% |
Amazon changes its fees from time to time, and some categories have tiered rates or minimum fees. Confirm the rate for your category in Seller Central before you rely on it.
Wholesale ROI is how experienced FBA wholesalers measure whether a product is worth buying. It tells you how efficiently you're deploying capital — a 50% ROI means every £100 you spend buying inventory returns £150 when sold. For a business that turns inventory 4 times a year, that's 200% annual return on capital.
Most professional wholesale sellers won't buy a product below 30% ROI after fees. The extra margin provides buffer for unseen costs, slow periods, and price erosion. Products with 50%+ ROI consistently are the backbone of a scalable wholesale operation.
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