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NPV and IRR Calculator for Projects and Investments

By Bilawal Hussain · 4 November 2026 · 2 min read
NPV and IRR Calculator for Projects and Investments

Enter yearly cash flows to get net present value and internal rate of return, the standard way to judge whether a project beats your required return.

Open the free NPV & IRR Calculator →

What is the NPV & IRR Calculator?

Net present value and internal rate of return for any series of yearly cash flows. It's completely free, needs no sign-up and works on any phone or computer.

Screenshot of the NPV & IRR Calculator on ReadyToUse
The NPV & IRR Calculator, as it looks on ReadyToUse.

Why it's helpful

Who it's for

Finance students, analysts and business owners.

How to use it

  1. Enter cash flows starting with the investment in year 0 as a negative number.
  2. Set your required return (discount rate).
💡 Pro tip: If NPV is positive at your required return, the project adds value in today's money.

💻 Open source: this tool is free and open source (MIT License). View the code on GitHub, download it and run it offline.

The bigger picture: Business

Running a business in the UAE means invoices with VAT, Corporate Tax, hiring costs and cash flow. Clear calculators and templates help founders and freelancers make better decisions before talking to an accountant.

What's changing: Since UAE Corporate Tax arrived, small businesses are paying closer attention to bookkeeping, invoices and planning, and Small Business Relief has been extended to tax periods ending on or before 31 December 2029.

Frequently asked questions

What does NPV > 0 mean?

The project earns more than your required return, in today’s money.

Ready to try it?
Use the NPV & IRR Calculator free →
No sign-up · Runs in your browser

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BH
Bilawal Hussain
Full-stack developer in Dubai and creator of ReadyToUse: free tools that just work. Connect on LinkedIn