Profit Margin Calculator
Estimate total cost, gross profit, margin, markup, and break-even price.
Free tools for independent businesses
Small business tools made too easy.
Calculate costs and profit, prepare a client document draft, or start with an editable template or guide—all free to use in your browser.
Free to use · No account required · Your entries stay in this browser
Free browser tools
Calculate numbers or prepare a document.
Choose a calculator or document generator. Core work stays in this browser and does not require an account.
Invoice Generator
Add the sender, client, dates, payment details, and line items first. Optional delivery and record-keeping details stay available below.
Complete client and line item details
Choose a date
Choose a date
Add: logo, PO number, shipping, discount, notes, and payment details.
Quote Generator
Start with your client, project, dates, basic payment terms, and the scoped line items. Optional commercial details stay available below.
Complete client and line item details
Choose a date
Choose a date
Labor / Service Items
Material Items
Add: logo, PO number, shipping, discount, notes, and payment terms.
Ad Budget Calculator
Estimate clicks, leads, cost per lead, expected revenue, profit, and ROAS.
What it means: your planned monthly ad spend. New to ads? A typical US small-business search-ad starting range is $1,000-$2,500 per month, or roughly $20-$50 per day for a smaller test.
What it means: the average amount paid for one ad click. Start here: check Keyword Planner; $2.50 is a cautious placeholder, while a broad US search average is about $5.42.
What it means: the share of ad clicks that become a lead, such as a form submission or call. Start here: use 3% without data. A broad landing-page median is 6.6%, but your offer and traffic source can differ widely.
What it means: the average revenue from one paying customer. Start here: use collected revenue divided by customers from the last 30-90 days, after typical discounts and refunds. Do not use your list price if customers rarely pay it.
What it means: the share of leads that eventually become paying customers. Start here: use 10% for unqualified leads. Sales close rates near 15%-20% usually refer to qualified opportunities, not every first enquiry.
Etsy Profit Calculator
Estimate single-item profit with editable marketplace fee assumptions.
Marketplace fees
What it means: Etsy's fee for completing an order. It applies to the item price, shipping charged, and gift wrap. Start here: use 6.5%. This is Etsy's standard transaction fee.
What it means: the Etsy Payments charge for accepting a customer's payment. It changes by bank country and includes a percentage plus a flat amount. Start here: US sellers can use 3% here. Check Etsy's country table for your rate; this calculator estimates the percentage portion only.
What it means: a flat charge to publish one product listing, whether or not it sells. Listings expire after four months and renewals are charged again. Start here: use $0.20 per listing.
What it means: a fee only when Etsy's offsite ad leads to an order within 30 days. Start here: use 0% unless this sale came from an Offsite Ad. Use 15% below $10,000 annual Etsy revenue, or 12% once your shop reaches that threshold.
Template library
Templates for routine business work.
Open an editable starting point, replace the prompts with your details, then copy or print the result.
Practical guides
Guides for the questions behind the task.
Read the practical steps, then open the matching calculator or template when you are ready.
Trust and transparency
Your work stays in your browser.
Calculator inputs and template edits are processed locally in your browser. Read how the current site handles data, what the tools can and cannot do, and where to report a problem.
FAQ
Common launch questions.
Does this page save user inputs?
No. This static MVP keeps calculations in the browser and does not send tool values to a server.
Can this be expanded into separate SEO pages?
Yes. The current tabs map directly to the PRD URL structure, such as /tools/profit-margin-calculator/ and /tools/invoice-generator/.
Where should ads go?
Keep one homepage placement between major content sections, use responsive in-article placements in long-form guides, and keep templates free of ads near actions. Avoid first-screen clutter, inputs, result controls, and misleading button placement.
Are the fee assumptions guaranteed?
No. Marketplace, tax, payment, and advertising inputs can change. Users should update rates manually and treat results as estimates.