Free Business Tools

Simple, free tools to help you run your business. No signup required.

Profit Margin Calculator

Calculate gross and net profit margins, markup percentages, and break-even points for your business.

Create professional invoices with custom line items, taxes, and discounts. Print or save as PDF instantly.

Calculate the true cost of hiring including salary, payroll taxes, benefits, and overhead expenses.

Calculate what to charge per hour based on your income goals, expenses, taxes, and billable hours.

Calculate sale prices, savings, and discount percentages. Find final prices, original prices, or percent off instantly.

Calculate selling prices, markup percentages, and profit margins. Essential for retail and wholesale pricing.

Calculate mileage reimbursement using 2025 IRS rates. Business, medical, and charitable mileage deductions.

Calculate overtime pay, total weekly earnings, and effective hourly rates using FLSA guidelines.

Calculate capitalization rate, property value, or NOI for real estate investments. Includes market rate data.

Calculate depreciation using straight-line, declining balance, or MACRS methods. Generate full schedules for tax.

Have a tool request? Let us know what would help your business.

Ringlii answers your business calls 24/7 with AI, books appointments, and captures every lead.

7-day free trial | Keep your number | Setup in under 5 minutes