Delivery calculators
17 free calculators, no login — type a number, see what it means.
Frequency
Compare a team shipping 3 times a week with a monthly release train.
Little's Law
Leave one field empty and it is solved. Use it to see why a long WIP list slows everything
DORA four keys
Rate a team quarterly and show leadership where the gap is. Thresholds are simplified from
Release forecast
Answer "when will it be done?" with a range instead of a single date.
Flow efficiency
A ticket took 5 days end to end but only 2 days of real work. Find how much time it spent
Sprint capacity
Plan a sprint after leave, holidays and meetings.
PR size and review
Turn pull request size into reviewer hours, and see what smaller changes do to each review
Rework rate
See how much newly merged code is rewritten soon after, a sign of unclear requirements or
WIP age
Spot items that have been open longer than most of your work takes.
Monte Carlo forecast
Forecast a finish date from a range of weekly throughput instead of one average.
Lead time breakdown
Split the time from first commit to production into working and waiting stages.
Sprint predictability
Compare what the team commits to with what it finishes, and plan from the real average.
CI pipeline reliability
Price the time lost to failed pipeline runs.
Integration connections
See how connections multiply when every system talks to every other, and what a shared hub
Application rationalisation
Estimate the saving from retiring redundant applications.
IT spend ratios
Common CIO measures: IT spend against revenue and headcount, and the run versus change spl
Three-point estimate
Turn best, likely and worst-case guesses into an expected duration and a safe range.