Unit converter

C₁V₁ = C₂V₂, exactly how much stock and diluent to mix.

A fold-dilution series, tube by tube.

Convert between molarity, mass, volume, and moles for a reagent, in any direction.

Type an element or formula (Sb, NaCl, C6H12O6) and convert grams to moles. Molar mass is computed from cited atomic weights.

Weigh a solid or pipette a liquid: enter what you have, get the bench step.

Convert %w/v, %w/w, %v/v ⇄ g/L and molarity.

Turn a bottle label (%w/w + density) into a safe dilution protocol.

Henderson-Hasselbalch, the acid/base split for a target pH.

Grams of agarose for a % gel and casting volume.

Resolving & stacking gel recipes by acrylamide %.

Resuspend a lyophilized primer to a stock concentration.

Convert a dsDNA mass to moles (and back) from its length.

Insert mass for a target insert:vector molar ratio.

DNA and RNA concentration and purity from absorbance.

Protein concentration from absorbance and extinction coefficient.

Sequence to ε280, MW, and E0.1%, the Pace way. Feeds the A280 calculator.

Formula or mass to adduct m/z, and reverse-match an observed peak by ppm.

A SMILES to its formula, molar mass, exact mass, and isotope pattern. Invalid valence is flagged, never guessed.

Pin the scale, get every reagent’s mmol, mass, and volume from its equivalents.

Exact integer coefficients by rational null-space. Unbalanceable input is flagged, never fudged.

Which reagent runs out, the theoretical yield, and what is left over.

Weighed the wrong amount? Get the volume to dissolve it in to hit your target.

Protocol assumes one hydrate, you have another? Get the corrected mass.

Dial in the bench pH so your buffer hits target at working temperature.

Target pH and stocks in, an exact volume-closed recipe out.

I = ½ Σ cz², plus activity coefficients (Debye-Huckel to Davies).

Overshot your buffer? Get the exact strong acid or base volume to fix it.

N = M × n, with the equivalence factor you confirm for the reaction.

Mass, molarity, and copies/µL for dsDNA, ssDNA, or ssRNA, both directions.

Nearest-neighbor Tm with Na+ and Mg2+ salt corrections. Not a Wallace guess.

Vector amount and insert ratios to an exact pipetting table.

Livak 2^-ddCt with proper error propagation and an honest asymmetric band.

Colonies, plated fraction, and DNA mass to CFU per µg.

Flag a suspect replicate (3 to 10 values). Advisory only, never auto-deleted.

Fit a dose-response curve and read off the IC50/EC50, Hill slope, and R².

Fit enzyme kinetics to read Vmax, Km, and (with [E]t) kcat and kcat/Km.

Welch's t-test for two groups: p-value, effect size, and a plain verdict.

Fit a standard curve, subtract the blank, and back-calculate protein with dilution.

Loading-control-normalized densitometry: relative density and fold change vs control.

Antoine vapor pressure of a solvent, and the boiling point at each vacuum setpoint.

Identify a 1H peak from its shift, or look up where a known compound appears (Fulmer table).

Convert electrophoretic mobility to zeta potential (Henry / Smoluchowski / Huckel).

Scale flow, injection, and gradient between columns, with void volume and dead time.

Convert Torr, atm, psi, cal, eV, poise, dyne and other legacy units to SI.

Turn weighed water masses into accuracy and precision against the nominal volume.

Build the health / flammability / instability / special hazard diamond.

Concentration from absorbance, any extinction-coefficient convention.

Total units and specific activity from a measured rate.

OD600 to cells per mL, and back-dilute a culture to a target OD.

Remaining radioactivity after time, by half-life.

Rotor clearing factor and pelleting time.

Scale a per-reaction recipe to a batch, with overage.

Build a multi-component buffer from stocks and solids.

Fit a linear or quadratic standard curve (Bradford, BCA, ELISA) and read unknowns.

Total osmolarity of a multi-solute solution.

Convert centrifuge speed to g-force using the rotor radius.