CFD (Cumulative Flow)

Calculate CFD (Cumulative Flow) instantly with the exact formula and a worked example.

CFD (Cumulative Flow)

Average work in progress (WIP)tasks
Throughput (completions)tasks/day
New task arrivalstasks/day
Average cycle time
8days
Little's law holds on average for a stable systemCalculate CFD (Cumulative Flow) instantly with the exact formula and a worked example.
WIP change per day
0.50tasks
Flow
WIP rising: CFD bands widen

More about: CFD (Cumulative Flow)

What it calculates

The “CFD (Cumulative Flow)” calculator computes Average cycle time in days from 3 parameters: average work in progress (wip) (tasks), throughput (completions) (tasks/day), new task arrivals (tasks/day).

A handy everyday calculator for daily tasks.

Example calculation

With parameters Average work in progress (WIP) = 24 tasks, Throughput (completions) = 3 tasks/day, New task arrivals = 3.5 tasks/day the result is 8 days (Little's law holds on average for a stable system).

How to use

  1. Enter average work in progress (wip), throughput (completions) and new task arrivals — each field above is adjustable with a slider.
  2. Average cycle time (days) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is CFD (Cumulative Flow) calculated?
The CFD (Cumulative Flow) calculator computes Average cycle time (in days) from average work in progress (wip), throughput (completions), new task arrivals. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the CFD (Cumulative Flow) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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