FREE BUSINESS TOOLS · BROWNBAG
Free ecommerce tools.
Clearer decisions.
Calculate costs, compare selling options and review operational details with fourteen free ecommerce calculators, comparisons and checklists. Start with the decision your business needs to make.
Choose your toolFourteen free tools. Results after contact details.
THE WORKBENCH / FOURTEEN TOOLS
Pick a question.
Find your answer.
Choose a calculator, comparison or checklist. Each tool explains the inputs, the result and a useful next step for your business.
CALCULATORStartup Cost Calculator
How much should I budget before I launch?
Explore this tool ↗
CALCULATORProduct Profit Margin Calculator
What is left from each product I sell?
Explore this tool ↗
CALCULATORLanded Cost Calculator
What will each sellable unit really cost to receive?
Explore this tool ↗
CALCULATORBreak-even Calculator
How many units must I sell to cover monthly costs?
Explore this tool ↗
CALCULATORMarketplace Fee & Profit Calculator
What will a marketplace order leave after fees?
Explore this tool ↗
CALCULATORROAS & Advertising Break-even
Is my advertising return enough for my margin?
Explore this tool ↗
CALCULATORInventory Reorder Calculator
Is it time to review my next stock order?
Explore this tool ↗
CALCULATORCOD & Returns Impact Calculator
What are failed COD deliveries costing this batch?
Explore this tool ↗
COMPARISONPlatform Comparison Tool
Should I start with my own store or a marketplace?
Explore this tool ↗
CHECKLISTBusiness Launch Checklist
What still needs attention before I launch?
Explore this tool ↗
CHECKLISTSupplier Evaluation Checklist
Have I checked enough to commit to this supplier?
Explore this tool ↗
CHECKERProduct Listing Readiness Checker
What should I check before publishing this product?
Explore this tool ↗
CHECKERPurchase Order Checker
Do the received items and invoice match my order?
Explore this tool ↗
CALCULATORPackage Weight & Dimensional Weight Calculator
What weight could your carrier charge for this box?
Explore this tool ↗PLAN YOUR NEXT STEP
How to use these business tools
Choose the question
Match the tool to a decision: launch budget, selling price, advertising spend, stock, packaging or a supplier review.
Prepare realistic inputs
Use current quotations, recent orders and your own costs. Each tool explains the inputs it needs before you start.
Review the result
Complete the contact step to see the result. Read its assumptions and limitations, then change your inputs to compare another scenario.
These tools are provided by BrownBag. Need help applying your result? Discuss your business with us.
COMMON QUESTIONS
Before you choose a tool
Which ecommerce tool should I start with?
Start with the decision you need to make. Use startup cost before launching, landed cost when comparing supply options, and profit margin or marketplace profit before setting a selling price. The listing, purchase-order and supplier checks help you review operational details.
What do I need to see my result?
Choose a tool and complete its input steps. Share your name and an email address or phone number to unlock the free result. The contact step explains what is saved, and follow-up is an optional choice.
Can I treat the result as a confirmed cost or business recommendation?
Use the output as a planning estimate or a review of the choices you entered. Check actual supplier quotations, marketplace fees and carrier rules before committing. Compare realistic scenarios; the tools do not guarantee profit, eligibility or delivery charges.