Quick checks for stock solution and molarity calculations

wojo free — Sat, 04 Jul 2026 15:51:58 +0000

Small unit mistakes in molarity, dilution, and stock-solution prep can waste a lot of lab time. I have been adding practical reference pages to BioCalculator so each common workflow has a direct URL that can be bookmarked or shared.

A sodium chloride stock solution reference:

https://biocalculator.app/solutions/sodium-chloride

The stock solution collection:

https://biocalculator.app/solutions

The calculator collection:

https://biocalculator.app/calculators

The goal is a quick second check for routine biology lab prep rather than a replacement for a protocol or lab notebook.

A small biology calculator toolkit for lab prep checks

wojo free — Sat, 04 Jul 2026 15:41:35 +0000

I have been collecting the routine calculations that come up around biology lab work into a small mobile toolkit called BioCalculator.

The goal is not to replace a protocol or a lab notebook. It is a quick check layer for common prep work: dilution, molarity, stock solutions, buffer recipes, protein and nucleic acid conversions, microbiology utilities, and endpoint dilution TCID50 calculations.

The TCID50 calculator page is here:

https://biocalculator.app/calculators/TCID50

The main calculator collection is here:

https://biocalculator.app/calculators

And the app/site homepage is here:

https://biocalculator.app/

I am keeping the pages practical and shareable, so each calculator has its own URL instead of hiding everything behind a generic landing page. Feedback from people who work with cell culture, virology, or routine molecular biology prep would be useful.

DEV Community: wojo free

Quick checks for stock solution and molarity calculations

A small biology calculator toolkit for lab prep checks