Little's Law for a takt-time study
Simulate a takt-time study live in your browser. This runs the real Little's Law solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.
Controls
Presets
Little's Law is deceptively simple and astonishingly general: the average work-in-progress equals throughput times lead time. It holds for any stable queue — a factory, a hospital, a software backlog, a checkout line — regardless of the details. It means the only ways to cut lead time are to raise throughput or reduce work-in-progress, the core insight of lean and agile.
Data Inspector
Governing equation
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
About this simulation
The full Little's Law tool models a takt-time study with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.
More you can do with Little's Law
Other ways to simulate a takt-time study
Frequently asked questions
- How do I simulate a takt-time study?
- Open this page and use the live Little's Law tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
- Is it free?
- Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
- Can I use my own numbers?
- Absolutely — every input is adjustable, and with data import you can drive a takt-time study from your own measurements.