Calculators

Tools built for
practitioners.

A growing library of free, practical calculators for Lean Six Sigma improvement work, built to support real delivery from Define through to Control. Run the numbers in your browser, sanity-check your data, and keep improvement work moving — no spreadsheets, no downloads, no sign-up required.

simplicityhub.co.uk/tools
25 Calculators
Free No sign-up needed
100% In-browser
Always growing

Every calculator runs entirely in your browser — no spreadsheet, no download, no data sent anywhere.

DPMO Calculator
Defects per million
Sigma Level
Process performance
Control Limits
SPC charts with UCL/LCL
Takt Time
Production rhythm
OEE Calculator
Equipment effectiveness
Box Plot
Distribution & outliers
25 Tools
Free, in-browser
DPMO Calculator
Defects per million
Sigma Level
Process performance
Control Limits
SPC charts with UCL/LCL
Takt Time
Production rhythm
OEE Calculator
Equipment effectiveness
Box Plot
Distribution & outliers
25 Tools
Free, in-browser
Category:
No calculators foundTry a different search term or clear the filter.
More coming

More tools on the way

The SimplicityHub calculator library is growing. Got a specific tool or calculation you need? Let us know and we will add it to the roadmap.

Request a calculator Browse templates