Chemistry tools

Batch Scale-Up Calculator (Ratio-Preserving with Loss and Yield)

Scale a formulation without changing its ratios, then apply loss, yield, and minimum charge rounding in one pass. Paste a spreadsheet table and go straight to a scaled batch table, deltas, and CSV or JSON export.

Chemical Unit Conversion Hub

Convert pressure, temperature, concentration, viscosity, and volume on one screen.

Concentration Converter (Density-aware)

Convert M (mol/L), m (mol/kg solvent), wt%, vol%, and ppm at the same time.

Density Calculator: Mass and Volume

Convert mass and volume using density, with optional coefficient-based temperature correction. Use one page for practical units such as kg/L, g/mL, and lb/gal(US).

Dilution Calculator (Single-Step and Serial Dilution)

Calculate stock and solvent amounts from target concentration and final volume, and generate serial dilution tables.

Formulation Ratio Calculator (Weight, Volume, Tolerance)

Create formulation tables from percentages, parts, or actual amounts, then scale them to a target total without losing track of density, rounding, or tolerance ranges.

Measurement Uncertainty Calculator (Concentration from Weighing and Volume)

Calculate uncertainty for concentration and dilution results from weighing error, volume error, and related inputs directly in the browser.

Molecular Weight Calculator (Formula to Molar Mass and Elemental Composition)

Calculate molar mass and elemental composition by mass from a chemical formula such as C6H12O6.

Scalable Solution Recipe Calculator

Generate a table of required reagent amounts in g and mL from the target concentration and final volume.

Significant Figures and Rounding Checker with LOD/LOQ Reporting

Turn measured values, instrument resolution, standard deviation, and rounding rules into notation you can use in reports.

Stoichiometry Calculator (Limiting Reagent, Theoretical Yield, Percent Yield)

Calculate the limiting reagent, excess amount, theoretical yield, and percent yield from reaction coefficients and input quantities such as g, mol, and solution M×L.

pH Calculator (pH, pOH, and concentration conversion)

A simple pH calculator to convert H+, pH, and pOH for education and quick field notes. It helps you check pH calculation, pOH calculation, and hydrogen ion concentration in one place.