Bio Unit Converter
Convert mass, molarity, OD600, and dilution volumes in one tabbed workspace—no switching calculators.
What it does
Enter concentrations, masses, volumes, or an OD600 reading in the units you already use. Search common reagents and proteins to fill molecular weight automatically, or type MW yourself. Four tabs—Molarity, OD600 / Cells, Dilution, and Unit Converter—live on one page; results update as you type.
Get molar and mass concentration, cell density with an uncertainty range for your organism, or the missing C₁V₁ value. Send any result to the next tab with one click instead of retyping. Copy a formatted record for your notebook, share a link that restores your inputs, and reload past calculations from browser history.
Why researchers use it
- Stop switching between vendor calculators mid-prep
- Convert ng/mL to nM without a separate MW lookup
- See OD600 uncertainty ranges for your organism
- Solve dilution for any missing concentration or volume
- Paste shareable calculation records into your ELN
Best for
- Protein and small-molecule concentration math
- Bacterial, yeast, and mammalian OD600 conversions
- Quick C₁V₁ dilution at the bench
- µg/mL to nM conversions for Western or ELISA
- Chaining OD reading to working concentration to dilution
What makes it different
Tocris, VectorBuilder, and GraphPad each handle one conversion type in isolation. Most OD600 calculators use a single E. coli factor and hide strain-to-strain variation. None chain an OD reading to cell density to working concentration to dilution volume in one session.
This browser tool combines four conversion modes with live results, searchable compound MW lookup, species-aware OD factors with uncertainty ranges, solve-any dilution, cross-tab chaining, local history, and share links—no install or account.
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