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Cell seeding calculator: viable cells per vessel
Suspension and medium per vessel from a measured density and viability, with the counting dilution applied once, area or volume targets and a 1:n split.
Cell seeding and splitting
Use measured inputs and your protocol’s targets. Save the exact setup or export a free preparation sheet.
Select targets for your cell line and experiment. Confluence is not a cell count. Available suspension is required to check the finite allocation.
Answer
Each vessel: 0.0625 mL suspension and 0.9375 mL medium; prepare 11 mL in all.
- Corrected viable density
- 1,600,000cells/mL
- Suspension per vessel
- 0.0625mL
- Medium per vessel
- 0.9375mL
- Complete mixture to prepare
- 11mL
Planned calculation; no performed preparation is recorded.
Calculated setup
| Quantity or basis | Value |
|---|---|
| Corrected viable density | 1,600,000 cells/mL |
| Viable cells per vessel | 100,000 viable cells |
| Cells for planned vessels | 1,000,000 viable cells |
| Cells including deliberate overage | 1,100,000 viable cells |
| Complete-mixture overage | 10 % |
| Planned vessels | 10 |
| Suspension per vessel | 0.0625 mL |
| Medium per vessel | 0.9375 mL |
| Final volume per vessel | 1 mL |
| Suspension before overage | 0.625 mL |
| Total suspension to allocate | 0.6875 mL |
| Total medium to add | 10.3125 mL |
| Complete mixture to prepare | 11 mL |
| Unused suspension | 0.3125 mL |
- Calculated setup only; this is not a performed preparation or measurement.
- Targets are supplied by the researcher. Viability and counting dilution are each applied once according to the selected measurement basis. No confluence-to-count conversion or cell-line recommendation is made.
- Volumes are treated as additive. Overages, when selected in measured mode, scale the complete seeding mixture once; the stated per-vessel target is unchanged.
Illustrative arithmetic only; no biological target or equipment setting is recommended.
Assumptions and qualifications
Open in the bench sheetThe bench sheet carries these inputs and offers the other calculators.
Worked example
- 2 million cells/mL at 80 percent viability is 1.6 million viable cells/mL; 100,000 viable cells in each of 10 vessels needs 0.625 mL of suspension before overage.
- With 10 percent overage of the complete mixture: 0.6875 mL. Entering the already-viable density, 1.6 million cells/mL, gives the same answer without applying viability twice.
- Choose targets for your cell line and experiment; none is suggested here. Confluence is not a cell count.
- The 1:n split mode divides a harvested suspension into equal parts and makes no prediction of density or growth.
Method
- Cell seeding from a measured density, and 1:n splitting. Viable density from total density and viability, counting dilution applied once; stock per vessel = target / viable density (Thermo Fisher Gibco cell culture basics, maintaining cultured cells; read 10 October 2026).Checked against exact rational arithmetic (Python 3.13.16 fractions) on 13 cases, five of them refusals, to nine significant figures; refusals exact (10 October 2026).
Limits
- For research and education only, and not medical advice: the stock, dilution and buffer calculations here are not for dosing or clinical preparation.
- Cell seeding uses the density, viability and targets you supply; it recommends no density, predicts no growth or confluence, and a 1:n split predicts nothing.