Planning a whole study?
The free Scientific Study Planners turn what you know about an in vivo, in vitro, PDX, organoid, PK or bioanalytical study, a GLP toxicology package or a CDMO project into a structured plan with open decisions listed.
Frequently asked questions
Are the calculators free?
Yes. No account, email or payment, and no limit on use.
Is my data stored?
No. The calculators run in your browser and nothing you type is saved or sent anywhere.
How accurate are the results?
Each calculator uses a standard formula, shown on the page with a worked example and its source, and the maths is covered by automated tests. Results assume ideal conditions; check them against your lab's procedures and the reagent supplier's instructions before use.
Can I print or copy a result?
Yes. Every calculator has Copy result and Print buttons; printing includes only the result and the formula.
Each calculator links to the matching service on BioBridgeX, where you can compare quotes from vetted CROs and CDMOs. Free for buyers.