Calculator Directory
Science Calculators
Practical calculators and reference tools for molecular biology, chemistry, lab planning, and future science topics.
Molecular Biology5 live
Protein Molarity Calculator
Convert between mass and moles for proteins. Includes weight↔mole, molar concentration, and molecule count.
Protein pI and MW Calculator
Calculate theoretical pI, average and monoisotopic molecular weight, net charge at any pH, and view the charge-vs-pH curve.
DNA Reverse Complement
Converts a DNA sequence into its reverse, complement, or reverse-complement counterpart.
Nucleic Acid Mass Calculator
Convert DNA or RNA mass, moles, and copy number from length. Supports ssDNA, dsDNA, ssRNA, and dsRNA.
Reagent and Buffer Recipes
A collection of common lab buffer and solution recipes — TE, TAE, TBE, PBS, TBS, TBST, SSC, SSPE, HEPES, and more — with concentrations and preparation steps.
Chemistry4 live
Molarity Calculator
Calculate molarity, required mass, final volume, or convert between % w/v and molarity for general solutions.
Solution Dilution Calculator
Five dilution scenarios in one tool: C1V1=C2V2, stock spikes, back dilution, exact final volume, and mixing two solutions.
Serial Dilution Calculator
Plan a dilution series with tube concentrations, transfer volumes, diluent volumes, and a printable bench protocol.
Interactive Periodic Table
Explore all 118 elements by name, symbol, atomic number, category, group, period, block, phase, and atomic weight.
A broader home for science tools
This section brings together Calcorium's biology and chemistry tools, while leaving room for future science areas such as physics, engineering, environmental science, and materials calculations.