Mercari Seller Tools
Mercari Inventory Restock Calculator
Plan Mercari sourcing and restock decisions around active listings, inventory on hand, sell-through rate, item cost, storage pressure, sourcing lead time, and profit per item.
Inventory inputs
Enter current inventory, listing count, sales velocity, sourcing lead time, cost, profit, storage cost, and target sell-through goals.
Results
Estimated Mercari inventory and restock plan.
Recommended restock
0
Units needed to reach the target inventory window.
Estimated restock cost
$0.00
Recommended restock units multiplied by average item cost.
Available inventory
200
Current unlisted inventory plus active listings.
Days of stock
150.0 days
Available inventory divided by daily sales.
Sell-through rate
33.3%
Monthly sales divided by active listings.
Target inventory
74
Units needed for the target stock window.
Inventory value
$2,000.00
Cash currently tied up in available inventory.
Monthly storage cost
$30.00
Estimated monthly storage pressure.
Expected restock profit
$0.00
Estimated profit from the recommended restock quantity.
Slow inventory value
$400.00
Estimated cost tied up in slow-moving inventory.
Listings needed for target
160
Active listings needed for the target sell-through rate.
Listing gap
40
Additional active listings needed for the target.
What this means
You currently have 200 total available units, equal to about 150.0 days of stock at the entered sales pace. The calculator recommends sourcing or preparing 0 additional units.
Overstocked: Inventory may be high relative to current sales pace.
Sell-through target scenario comparison
| Target | Listings needed | Listing gap | Inventory value | Status |
|---|---|---|---|---|
| 10.0% | 400 | 280 | $4,000.00 | Watch |
| 15.0% | 267 | 147 | $2,670.00 | Watch |
| 20.0% | 200 | 80 | $2,000.00 | Healthy |
| 25.0% | 160 | 40 | $1,600.00 | Healthy |
| 30.0% | 134 | 14 | $1,340.00 | Healthy |
| 40.0% | 100 | 0 | $1,000.00 | Healthy |
| 50.0% | 80 | 0 | $800.00 | Watch |
How to use this Mercari Inventory Restock Calculator
Enter inventory
Add unlisted inventory and active listing count.
Add sales pace
Enter monthly sales, profit per item, and item cost.
Set sourcing rules
Add lead time, safety stock, target stock window, and storage cost.
Review restock
Check whether to source more, list faster, or slow down buying.
Mercari inventory breakdown
Review the numbers behind the Mercari restock estimate.
Current unlisted inventory
Included in the inventory restock estimate.
80
Active listings
Included in the inventory restock estimate.
120
Available inventory
Included in the inventory restock estimate.
200
Daily sales
Included in the inventory restock estimate.
1.3
Lead-time demand
Included in the inventory restock estimate.
19
Safety stock units
Included in the inventory restock estimate.
14
Target inventory
Included in the inventory restock estimate.
74
Recommended restock
Included in the inventory restock estimate.
0
Common Mercari restock mistakes
Sourcing more inventory before checking sell-through rate.
Counting unlisted inventory as productive inventory.
Letting slow-moving items tie up cash and storage space.
Buying more of an item type before checking actual profit.
Ignoring how long it takes to clean, photograph, and list items.
Planning sales goals without enough sourcing capacity.
Ways to improve Mercari restock planning
Track sell-through
Measure sales against active listing count, not total inventory.
List inventory faster
Unlisted inventory cannot sell until it becomes an active listing.
Protect cash flow
Avoid tying up too much money in slow-moving items.
Source proven items
Buy more only after confirming profit, demand, and sell-through.