Ecommerce cash and inventory calculators

Free tools for the numbers that decide whether a growing brand has cash: what a unit really costs, how much stock to hold, and what you can afford to pay for a customer.

Need the whole picture?

These calculators answer one question each. A 12 month cash and inventory forecast puts them together: when cash gets tight, how much inventory you can afford to order, and when. Forecasts for ecommerce brands from $500.

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Who builds these

Cashflow Ninja is a fractional CFO practice. Our founder cofounded a consumer retail and ecommerce business, grew it to more than $80M in revenue and a public listing, and has raised over $60M in equity and debt. These calculators use the same formulas we use with clients.