MOI Calculator — HIV pseudovirus

About MOI Calculator — HIV pseudovirus

Calculate the infectious units (PFU/TU) of HIV pseudovirus to add for a target multiplicity of infection (MOI). Units = MOI × cell number. The calculation uses units = MOI × cells. The stakes: Seeding density, viability and MOI drive reproducibility in everything from drug screens to viral transductions. A counting error cascades into wrong doses and uninterpretable results. MOI sets the average HIV pseudovirus particles per cell. Watch out for: reading plates outside the 30–300 colony range; applying MOI without titering the virus; counting cells on the wrong hemocytometer squares. Because the calculation happens entirely client-side, you can use it offline and with confidential data, then cite the stable URL in your methods or teaching notes.

How to use MOI Calculator — HIV pseudovirus

1. 1Enter your values: Target MOI, Cell number.
2. 2Read the headline result and the supporting figures, which recompute as you type.
3. 3Open “Worked example with your numbers” to see the substituted formula step by step.
4. 4Copy the result, or use the cite-this-tool snippet for your methods section.

Why use MOI Calculator — HIV pseudovirus?

• ✓Copy-ready result and a one-line “cite this tool” snippet for your methods section
• ✓Designed for cell biologists, virologists and microbiologists who need a trustworthy answer fast
• ✓Instant, client-side result — works offline once loaded and keeps your data private
• ✓Shows the worked example step by step with your own numbers, not just a final figure
• ✓Pre-filled with sensible, niche-specific defaults so it is useful the second it loads

Frequently asked questions

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