Know the numbers before you spend.
Test product margins, advertising limits, pricing, fees, and inventory decisions before they become expensive mistakes.
Margin snapshot
Try it with one order.
Adjust the inputs to test the order.
Twelve numbers every seller should know.
Each tool is focused on one decision. Enter your numbers and get the result immediately.
Ecommerce Profit Margin Calculator
Calculate net profit and margin after product cost, shipping, fees, and advertising.
Break-Even ROAS Calculator
Find the return on ad spend required to cover product costs and fulfillment before profit.
Product Pricing Calculator
Set a selling price from landed cost, target margin, platform fees, and shipping.
Ecommerce Ad Budget Calculator
Estimate the advertising budget needed to reach a target sales volume at a given CPA.
Discount Profit Calculator
See how a discount changes gross profit and the order volume needed to break even.
Inventory Reorder Point Calculator
Calculate a practical reorder point from daily sales, lead time, and safety stock.
Shipping Cost Per Order Calculator
Break down shipping, packaging, and handling cost per order and its margin impact.
Ecommerce Platform Fee Calculator
Estimate marketplace or payment fees and the revenue left after each order.
Ecommerce Conversion Rate Calculator
Calculate store conversion rate and the additional traffic needed to reach a sales goal.
Less guesswork in the numbers that decide the business.
Use the calculators as planning tools, then validate the assumptions with your own sales, fulfillment, and advertising data.
See the decision, not just a formula
Every result includes the practical meaning behind the number.
No account or upload required
Calculations run locally in the browser and do not need customer data.
Simple enough to revisit
Change one assumption at a time and compare the result before committing.
Three steps before you scale.
Choose the decision
Start with the question that changes your next action, such as price, ad spend, or reorder timing.
Use real costs
Replace example values with landed cost, fulfillment cost, fees, refunds, and acquisition spend.
Check the downside
Run a conservative case before you approve the spend, discount, or inventory purchase.