Free ecommerce calculators.

Check profit, cash runway, pricing, and costs with your own figures. No signup needed.

Choose a tool.

See the return on ad spend (ROAS) floor that covers the variable costs tied to each order.

See what one creator-led sale leaves after product cost, commission, platform fees, shipping, and fulfilment.

Compare customer acquisition cost (CAC) with the gross profit a customer may create over their lifetime, then see how long payback could take.

See how long current cash could cover the monthly shortfall, including a stronger-sales case and an ad-spend increase.

Compare the cash cost, repayment pressure, and ownership trade-off of revenue finance, a bank loan, and equity funding.

Estimate what the business may be able to set aside for owner pay after operating costs, a tax reserve, and a cash buffer.

Find how far you can discount slow stock today and when storage costs use up the profit you wanted to keep.

See whether matching a competitor’s lower price would still cover each sale and keep the margin you want.

See how separate product-cost and freight increases change monthly profit and the price needed to keep today’s profit at the same sales volume.

Turn your processor rates and order mix into a yearly cost you can compare with statements or another payment plan.

Compare the monthly cost of agency support, software, and manual reporting with a proposed automation option.

See what an international order may leave after product, shipping, duty, tax, brokerage, payment, and expected return costs.

Nummbas brings sales, costs, products, ads, and cash flow into one view so the numbers change when the business does.