Calculator collection
Small Business Profitability Calculators
Connect ROI, margins, break-even points, CAC, LTV, payback, recurring revenue, and ad performance before committing budget.
- Step-by-step workflow
- Links to existing calculators
- Use results as estimates
Suggested workflow
Step 1
Check unit economics
Start with margin, markup, sales tax, and break-even so price and cost are visible.
When to use
Use these before setting a price, discount, or minimum order volume.
Step 2
Add labor and overhead
Translate billable time, fixed costs, and project return into realistic profit pressure.
When to use
Use these before quoting services, buying equipment, or funding a project.
Step 3
Compare acquisition efficiency
Connect CAC, LTV, conversion rate, lead value, ROAS, and MER before scaling spend.
When to use
Use these when ad metrics look strong but customer economics need confirmation.
Step 4
Test channel and commerce costs
Run ecommerce and marketplace fee scenarios after margin and acquisition costs are known.
When to use
Use these before choosing a sales channel or marketplace promotion.
Practical takeaway
A profitable business scenario connects price, margin, fixed costs, customer acquisition, payback, and fees.
Comparison note
ROI measures return on cost, ROAS measures ad revenue per ad spend, and MER compares total revenue with total marketing spend.
Calculators in this collection
ROI
Calculate return on investment, net gain, and payback multiple.
BusinessProfit Margin
Calculate gross profit, margin percentage, and markup from revenue and cost.
BusinessMarkup
Calculate selling price, markup, gross profit, and margin from cost.
BusinessBreak-Even
Estimate how many units you need to sell to cover fixed costs.
BusinessHourly Rate
Estimate the hourly rate needed to hit an annual income target.
BusinessSales Tax
Add or reverse sales tax to estimate subtotal, tax, and total.
BusinessCAC
Calculate customer acquisition cost from sales, marketing, and new customers.
BusinessLTV
Estimate customer lifetime value from revenue, gross margin, and churn.
BusinessPayback Period
Estimate how many months it takes to recover an initial investment.
BusinessMRR
Calculate net new MRR and ending MRR from SaaS revenue movements.
BusinessARR
Convert MRR to ARR, ARR to MRR, and calculate annual recurring revenue movement.
BusinessChurn Rate
Calculate customer churn rate, retention rate, and ending customers.
BusinessROAS
Calculate return on ad spend from revenue and advertising cost.
MarketingMER
Calculate marketing efficiency ratio from total revenue and total marketing spend.
MarketingEcommerce Profit
Estimate ecommerce gross profit, net profit, and net margin per order.
BusinessMarketplace Fee
Estimate marketplace fees, payment processing, shipping difference, and net proceeds.
BusinessRelated categories
Collection FAQ
How should business calculators be combined?+
Use margin to check unit economics, break-even for volume, CAC and LTV for customer economics, and ROI or ROAS for project and campaign performance.
Is revenue enough for ROI?+
No. ROI should use net gain after costs, not gross revenue alone.