eBay Sell-Through Rate: What It Is and What's a Good Number

Sell-through rate (STR) on eBay is the percentage of listed items that actually sell in a given period. You calculate it as sold listings ÷ total listings × 100. A good eBay sell-through rate is generally 60% or higher — and anything above 100%, where items sell faster than they're listed, signals strong demand with room for more sellers.

It's the single most useful number in product research because it measures demand relative to competition — something raw sold counts can't do on their own.

How to calculate sell-through rate

The formula is simple:

Sell-through rate = (number of sold listings ÷ number of total listings) × 100

Say a keyword shows 300 sold listings and 500 total listings over the last 30 days:

• 300 ÷ 500 = 0.6
• 0.6 × 100 = 60% sell-through rate

You can measure STR over any window. On eBay, a rolling 30-day window is the most reliable — long enough to smooth out daily noise, short enough to reflect current demand.

What counts as a good sell-through rate?

There's no universal cutoff, but these bands are a practical guide:

• Under 40% — oversupplied. Too many listings chasing too few buyers. Expect price competition and slow sales.
• 40–60% — workable, but you'll need an edge: better price, photos, or shipping speed.
• 60–100% — healthy demand. Most of what's listed sells. A good zone to enter.
• Over 100% — items sell faster than they're listed. Strong, under-served demand — often the best opportunities.

Context matters: a 50% STR on a $400 item can be far more profitable than 90% on a $6 item. Always read STR alongside price and margin.

Why sell-through rate beats sold count alone

A product with 1,000 monthly sales sounds great — until you learn there are 20,000 active listings competing for those sales (a 5% STR). You'd be the 20,001st seller in a brutal price war.

Meanwhile a product with only 150 sales but just 120 listings (a 125% STR) is quietly under-served. Fewer sales, but a far better chance of you getting them.

That's the core lesson: STR tells you whether there's room for you, not just whether the product moves.

How to use STR in your research

1. Shortlist products by sold volume first — there has to be real demand.
2. Filter that shortlist by sell-through rate to remove the oversaturated ones.
3. Layer in average sold price and fees to confirm margin.
4. Watch the trend: a rising STR month over month is a product gaining momentum.

Do the math automatically

Calculating sell-through by hand means counting sold and active listings for every idea — tedious and easy to get wrong. SoldForge computes sell-through rate for you from real eBay sold data across 7, 14, and 30-day windows, so you can sort a whole category by STR in seconds.

Learn the full workflow in our guide on how to find products that sell on eBay, or start researching.