Amazon seller tools
Amazon cash-to-inventory planning · Free · No signup
Amazon Cashflow Reorder Calculator
Model whether current operating contribution and cash are enough to fund the next inventory reorder after fees, ads, refunds and COGS.
Browser-local arithmeticEditable fee assumptionsUSD · GBP · EUR
Amazon seller profit lab
Cash available for reordering
Use one consistent period. This is a simple operating-cash model, not an accrual accounting or Amazon payout forecast.
Cash-to-reorder scenario
$1,490.00
Estimated cash remaining after the modelled reorder.
- Operating contribution
- $8,690.00
- Cash before reorder
- $17,690.00
- Reorder cost
- $16,200.00
What this answers
How much operating contribution remains after marketplace fees, ads, refunds, COGS and other operating costs?
How much cash is available before the next reorder?
Does the entered reorder create a cash surplus or a funding gap?
Recurring pain = paid opportunity
The calculator is free. Rebuilding the model every week should not be.
Solarc Labs is building toward saved SKU models, repeated profit checks, inventory monitoring, alerts and exports. The paid boundary is automation and retained workflow—not access to basic arithmetic.