Cell Counts and Lab Measurements

These tools handle counts and results. Enter hemocytometer counts, seeding density or two counts for doubling time, find a concentration from a titration, work out percent recovery, convert RPM to RCF, handle significant figures, and get stress and strain.

Tools in this group

• Cell Seeding Calculator — Enter your cell concentration and the seeding density or cells per well to get the suspension and medium to mix.
• Doubling Time Calculator — Enter a starting count, a final count and the time between them to get the doubling time, growth rate and generations.
• Hemocytometer Calculator — Type the cell counts of each square you counted to get cells per mL, viability and total cells.
• Percent Recovery Formula and Calculator — Enter the starting and recovered amounts, or spike results, to get percent recovery, or actual and theoretical yield for percent yield.
• RPM to RCF Calculator (Centrifuge g-Force) — Enter the speed and rotor radius to get the relative centrifugal force, or the g-force to get the rpm to set.
• Sig Fig Calculator — Count significant figures, round to a chosen number of sig figs, or do arithmetic with the sig fig rules.
• Formulas for Stress and Strain: Stress Strain Calculator — Enter the force, cross-section and lengths to get stress, strain and Young's modulus, or use Hooke's law.
• Titration Calculator — Find the analyte concentration from the endpoint volume, the volume to equivalence, or draw the titration curve.