Free Business Calculators

30 free calculators for small business owners

profitability

Profit Margin Calculator

Calculate gross, operating, and net profit margins. Enter revenue and costs to see your profitability.

Break-Even Calculator

Find out how many units you need to sell to cover costs. Calculate your break-even point instantly.

pricing

Markup Calculator

Calculate selling price based on cost and desired markup percentage.

Discount Calculator

Calculate sale prices and savings with percentage or dollar discounts.

freelance

Hourly Rate Calculator

Figure out what to charge per hour based on your desired salary and expenses.

taxes

Freelance Tax Calculator

Calculate estimated quarterly taxes including self-employment tax for freelancers.

Quarterly Tax Calculator

Estimate quarterly estimated tax payments for self-employed individuals.

Self-Employment Tax Calculator

Calculate Social Security and Medicare taxes for self-employed income.

Sales Tax Calculator

Calculate sales tax for any US state or locality. Find rates and totals.

Payroll Tax Calculator

Calculate employer payroll tax obligations including FICA and FUTA.

Home Office Calculator

Calculate home office deduction using simplified or regular method.

payroll

Net to Gross Calculator

Calculate gross salary needed to achieve a specific net pay amount.

Paycheck Calculator

Estimate take-home pay after taxes and deductions for employees.

Overtime Calculator

Calculate overtime pay at 1.5x and 2x rates for hourly employees.

invoicing

Invoice Calculator

Calculate invoice totals with tax, discounts, and multiple line items.

Late Fee Calculator

Calculate late payment fees and interest on overdue invoices.

cash-flow

Cash Flow Calculator

Project cash flow by entering income and expenses to see your future balance.

startup

Startup Runway Calculator

How long until you run out of cash? Calculate runway from burn rate.

Burn Rate Calculator

Calculate your monthly cash burn rate and project runway.

analysis

ROI Calculator

Calculate ROI for investments, marketing campaigns, or business decisions.

AR Turnover Calculator

Calculate how quickly you collect payments from customers.

financing

Business Loan Calculator

Calculate monthly payments, total interest, and amortization for business loans.

Interest Calculator

Calculate simple or compound interest on savings or loans.

Invoice Factoring Calculator

Calculate the cost of invoice factoring and compare to waiting for payment.

accounting

Depreciation Calculator

Calculate depreciation using straight-line, declining balance, or MACRS methods.

inventory

Inventory Turnover Calculator

Calculate how quickly inventory sells and optimal stock levels.

expenses

Mileage Calculator

Calculate mileage reimbursement using current IRS standard rates.

Tip Calculator

Calculate tips and split bills for business meals and entertainment.

international

Currency Converter

Convert between currencies for international business transactions.

VAT Calculator

Calculate Value Added Tax for international sales and purchases.