Invoice Total Calculator
Add line items, quantity, rate, discount, and tax to get a clear invoice total.
Calculate an invoice totalFree invoice tools
Make invoice math and payment terms easier.
Use these simple browser-based tools to calculate totals, set clear due dates, and write payment terms you can adapt to your next invoice.
No signup required. Calculations run in your browser. Avoid entering sensitive client or bank details on a shared device.
Invoice Due Date Calculator
Choose Net 7, Net 15, Net 30, or custom terms and calculate the calendar due date.
Calculate a due datePayment Terms Generator
Create clear payment-term wording for deposits, due dates, payment methods, and late fees.
Generate payment termsBuilt for freelancers and small businesses
Small billing mistakes create avoidable back-and-forth. These free tools help you check the numbers and wording before you send an invoice. They are useful for a one-off invoice, a monthly retainer, or a repeatable billing process.
For saved clients, reusable line items, PDF sharing, and recurring invoices on iPhone and iPad, try InvoiceCub.