Laboratory research tools

Calculate clearly. Report reproducibly.

Six transparent, browser-based calculators for common laboratory and analytical workflows. Values stay on your device; no inputs are stored or transmitted.

Transparent methods

Every result shows the underlying relationship.

These tools support planning, checking and reporting in research settings. Use independently verified inputs, appropriate significant figures and your laboratory’s validated procedures.

01 / Concentration

Molarity calculator

Calculate molar concentration from mass, molecular weight and final volume.

02 / Preparation

Required mass

Calculate the mass required for a target millimolar concentration and volume.

03 / C₁V₁ = C₂V₂

Dilution calculator

Find the stock volume and solvent volume needed for a target concentration.

04 / Series design

Serial-dilution table

Generate a concentration series from a constant dilution factor.

05 / Exponential model

Half-life decay

Model theoretical first-order decay across elapsed time.

06 / Mass units

Mass unit converter

Convert between nanograms, micrograms, milligrams and grams.

M = n ÷ VMolarity equals amount of substance divided by solution volume.
C₁V₁ = C₂V₂Conservation relationship for a simple dilution.
N(t) = N₀ × ½^(t/t½)Idealised first-order half-life decay model.