# FollowIncome free business tools Free business calculators with visible formulas, assumptions, examples, shareable results, downloads, embeds, and privacy-reduced analytics. Last reviewed: 2026-10-02 ## Tool directory - [Free business calculators](https://followincome.com/tools) - [Profit and pricing calculators](https://followincome.com/tools/profit): Calculate profit margin, markup, selling prices, break-even points, and investment returns. - [Freelance and project calculators](https://followincome.com/tools/freelance): Plan sustainable rates and calculate project profit from revenue, costs, and delivery time. - [Invoices and quotes calculators](https://followincome.com/tools/documents): Create itemized invoices and quotes with discounts, tax, live totals, and printable documents. ## Profit Margin Calculator Canonical URL: https://followincome.com/tools/profit-margin-calculator Calculate profit margin, markup, selling price, allowable cost, cost ratio, and target profit. Free transparent formulas with no account required. Capabilities: - Calculate profit margin from revenue and total costs - Convert markup into an equivalent profit margin - Calculate selling price from cost and target margin - Calculate allowable cost from selling price and target margin - Calculate margin and price from cost and target profit Formula: Profit = revenue − costs. Margin = profit ÷ revenue × 100. Example: On €10,000 revenue and €6,000 costs, profit is €4,000, margin is 40%, and markup is 66.67%. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Markup Calculator Canonical URL: https://followincome.com/tools/markup-calculator Calculate selling price, profit, and equivalent margin from cost and markup. Free markup calculator with visible formulas. Capabilities: - Calculate selling price from cost and markup - Show profit per sale - Convert markup to equivalent margin - Share and download the result Formula: Selling price = cost × (1 + markup ÷ 100). Profit = selling price − cost. Example: A €60 cost with a 50% markup produces a €90 selling price, €30 profit, and a 33.33% margin. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Selling Price Calculator Canonical URL: https://followincome.com/tools/selling-price-calculator Calculate selling price from cost and target margin, allowable cost from price, or price from target profit. Capabilities: - Calculate price from cost and target margin - Calculate maximum allowable cost - Calculate price from a target profit - Show required markup and resulting margin Formula: Selling price = cost ÷ (1 − target margin as a decimal). Example: A €60 cost with a 40% target margin requires a €100 selling price and produces €40 profit. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Break-Even Calculator Canonical URL: https://followincome.com/tools/break-even-calculator Calculate break-even units, contribution margin, required revenue, and units needed for a target profit. Capabilities: - Calculate break-even units - Include a target profit - Show contribution per unit and contribution margin - Calculate required revenue and variable cost Formula: Break-even units = (fixed costs + target profit) ÷ (unit price − variable cost per unit). Example: With €10,000 fixed costs, a €100 price, and €60 variable cost, break-even is 250 units and €25,000 revenue. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## ROI and Payback Calculator Canonical URL: https://followincome.com/tools/roi-calculator Calculate ROI, net return, annualized ROI, return multiple, and payback period with transparent formulas. Capabilities: - Calculate return on investment - Show net return and return multiple - Annualize a multi-year return - Estimate payback in years and months Formula: ROI = (final value − initial investment) ÷ initial investment × 100. Example: A €10,000 investment returning €14,000 has a €4,000 net return and 40% ROI. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Project Profitability Calculator Canonical URL: https://followincome.com/tools/project-profitability-calculator Calculate project labor cost, total cost, profit, margin, and effective hourly profit from traceable project inputs. Capabilities: - Combine direct and labor costs - Calculate project profit and margin - Show effective hourly profit - Model fixed-price project economics Formula: Project profit = project revenue − direct costs − (delivery hours × internal hourly cost). Example: A €10,000 project with €1,500 direct costs and 100 hours at €40 costs €5,500 and produces €4,500 profit at a 45% margin. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Freelance Hourly Rate Calculator Canonical URL: https://followincome.com/tools/freelance-hourly-rate-calculator Calculate a freelance hourly rate and day rate using income goals, business expenses, tax reserve, working weeks, and billable time. Capabilities: - Include annual income and business expenses - Reserve a percentage for tax - Account for vacation and non-billable time - Calculate hourly and eight-hour day rates Formula: Hourly rate = ((income goal + expenses) ÷ (1 − tax reserve)) ÷ annual billable hours. Example: A €60,000 income goal plus €12,000 expenses, 25% tax reserve, and 960 billable hours requires a €100 hourly rate. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Invoice Generator Canonical URL: https://followincome.com/tools/invoice-generator Create a free itemized invoice with client details, discounts, tax, live totals, notes, and print or save-to-PDF output. No account required. Capabilities: - Add and remove itemized services - Calculate discounts and tax - Preview the invoice while editing - Print or save the invoice as PDF - Keep draft values in the browser Formula: Invoice total = subtotal − discount + tax on the discounted subtotal. Example: A €1,000 service with a 10% discount and 20% tax produces a €1,080 invoice total. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events. ## Quote Generator Canonical URL: https://followincome.com/tools/quote-generator Create a free itemized quote with client details, validity dates, discounts, tax, live totals, notes, and PDF-ready output. Capabilities: - Create itemized service quotes - Set a quote validity date - Calculate discounts and tax - Preview totals while editing - Print or save the quote as PDF Formula: Quote total = subtotal − discount + tax on the discounted subtotal. Example: A €2,000 project quote with a 5% discount and 20% tax produces a €2,280 quoted total. Privacy: Calculations run in the browser. Entered financial values and calculated results are not included in analytics events.