Function Point Calculator: guide & how to use

Tally EI, EO, EQ, ILF, EIF at low/average/high complexity to get unadjusted function points and hours via configurable hours-per-FP. This guide is part of our guides library in the Project estimation category—Story points, PERT, sprint capacity, timelines, burn rate, quoting, and function points.

What this tool does

Function Point Calculator — IFPUG-style counts with complexity weighting. It fits alongside other utilities on AI Tool Hub so you can solve small problems quickly without installing desktop software.

When it helps

Reach for this tool when your work overlaps with topics like: function points, ifpug, software sizing, effort. Teams use these utilities for ad hoc checks during development, studying, content drafting, and light business calculations—always double-check critical numbers against your own policies or professionals when stakes are high.

How to use it

1. Open the tool using the button below.
2. Enter or paste your input in the workspace.
3. Review the output and copy or export it for your project.

Common questions

Certified IFPUG?

This is a simplified spreadsheet-style helper; certified counts follow full counting rules.

Related tools

Pair this workflow with other utilities on the site:

• PERT Estimator

  Optimistic, most likely, pessimistic task estimates.
• Story Point Estimator

  T-shirt sizes to hours with velocity and calendar weeks.
• Project Timeline Calculator

  Effort, team size, and calendar end date with buffer.

Privacy

Like most utilities in this category, Function Point Calculator runs locally in your browser after the page loads—your content is not sent to our servers for processing.