GMP tools and calculators
Calculators that show their working. Every rate is an editable default, the arithmetic is printed on the page, and nothing you enter leaves your browser.
Each calculator states its assumptions and lets you replace every figure with your own. The argument only works with your numbers in it.
Available now, and in development
Cost of Inaction Model
Converts deviation volume, CAPA backlog and held batches into an annual carrying cost you can set beside a remediation budget. Every rate is an editable default and the arithmetic is published on the page.
OpenDeviation Cost Calculator
Cost of a single investigation by loaded hours, functions involved and recurrence probability, to support triage decisions.
Extends the cost model's investigation-labour component; no backend needed.
Production Downtime Calculator
Throughput and margin impact of a line stoppage or a quality hold, expressed against planned capacity.
Needs site-specific capacity and margin inputs; browser-only once specified.
Quality Cost Calculator
Cost of poor quality assembled across prevention, appraisal, internal failure and external failure categories.
Needs an agreed category model before it produces comparable figures.
CAPA Backlog Risk Calculator
Weights an open CAPA queue by age and regulatory exposure to produce a triage order rather than a single number.
Scoring model needs review by a practising QP before publication.
Training Gap Calculator
Role-based training coverage against the tasks actually performed, highlighting where records evidence attendance rather than competence.
Needs a role/task matrix input format.
What these calculators are not
Outputs are illustrative estimates based on the figures you enter. They are not financial forecasts, guarantees, or professional financial advice, and they do not predict a recall, a licence action or any specific regulatory outcome. They model costs a site is typically already carrying, made visible. Decisions taken on the basis of these tools remain yours.
Put your own numbers in
The cost model is pre-filled with a mid-size site so you can see the shape of it, then replace every figure with your own.