Free Serial Dilution Calculator — Volumes & Diagram

For the serial dilution calculator volume example, each fresh tube contains 1000 µL after mixing. A 100 µL transfer leaves 900 µL in intermediate tubes. The final tube keeps 1000 µL because this plan has no further transfer, making the chosen convention explicit in the output table.

I changed the serial dilution calculator to a factor of two while retaining a defined prepared volume. The transfer and diluent amounts each become half that volume. The cumulative factor changes at every step, so the table distinguishes the repeated preparation rule from the dilution reached by the entire series.

The serial dilution calculator project stores the starting concentration, factor, step count, prepared volume and units. I used JSON as the editable calculation source and CSV for its results. Reopening the project restores those inputs, while the tube figure and table are recalculated from the restored values.

This serial dilution diagram preserves the calculated tube series. I selected mg/mL and kept it visible beside the table and tube values to distinguish dilution from a mass-to-molar conversion. The volume inputs likewise use one selected unit, keeping transfer, diluent and remaining volumes in the same convention.

This serial dilution diagram preserves the calculated tube series. The SVG retains vector artwork and concentration labels; the CSV retains the numeric table precision. These outputs come from the same valid calculation, providing both a visual preparation plan and a table for the written protocol.